Tootfinder

Quaternion-Based Robust PCA for Efficient Moving Target Detection and Background Recovery in Color Videos
Liyang Wang, Shiqian Wu, Shun Fang, Qile Zhu, Jiaxin Wu, Sos Again
https://arxiv.org/abs/2507.19730

Quaternion-Based Robust PCA for Efficient Moving Target Detection and Background Recovery in Color Videos
Moving target detection is a challenging computer vision task aimed at generating accurate segmentation maps in diverse in-the-wild color videos captured by static cameras. If backgrounds and targets can be simultaneously extracted and recombined, such synthetic data can significantly enrich annotated in-the-wild datasets and enhance the generalization ability of deep models. Quaternion-based RPCA (QRPCA) is a promising unsupervised paradigm for color image processing. However, in color video p…

Así va mi proyecto de actualización del router WiFi en mi departamento. Tuve que "entrar a picar" para instalar un pequeño extractor noctua, muy silencioso, en la tapa de la carcasa. También hice un pequeño script para controlar la velocidad y así quede aún mšs silencioso.
#BpiR3 #BananaPi

Just designed this, and you can get it as a t-shirt. Makes a great gift?
https://davidaugust.threadless.com/designs/imposter-syndrome-expert/mens/t-shirt/regular?variation=front&color=lemon

You dont like the default color palett of #ggplot? You can change it: https://stackoverflow.com/questions/10504724/change-the-default-colour-palette-in-ggplot

Change the default colour palette in ggplot
I have written a function that returns a vector of color names: custom.colors <- function(n) { palette <- c("dodgerblue1", "skyblue4", "chocolate1", "seagreen4", "bisque3", ...

"Hued": The Daily #Color #Puzzle: https://playhued.com/

Updated Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap
Aleksi Kurkela, Krishna Rajagopal, Rachel Steinhorst
https://arxiv.org/abs/2508.20763 https:…

Updated Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap
We summarize and update using new NICER measurements the results of arXiv:2401.16253, in which we used various astrophysical neutron-star observations to set an upper bound on the CFL color-superconducting gap in a range of baryon chemical potentials $μ_B \in [2.1,3.2]$, above those reached within neutron stars. We also corroborate the ``reasonable" constraint from arXiv:2401.16253 on the maximum value of the color-superconducting gap by performing a new Bayesian analysis using a prior that ex…

Color and Transparency from Quantum Geometry
Chang-geun Oh, Sun-Woo Kim
https://arxiv.org/abs/2507.20904 https://arxiv.org/pdf/2507.20904

Color and Transparency from Quantum Geometry
The optical properties of solids are governed not only by their energy band dispersions but also by the quantum geometry of Bloch states. While the role of energy bands in determining the perceived optical appearance of materials, such as color and transparency, is well established, the influence of quantum geometry remains elusive. Here, we demonstrate that the color and transparency of materials can be direct manifestations of their underlying quantum geometry. To illustrate this principle, w…

Wiiiiiiiiiii. Mil gracias #nikonespaña

I’m very stylish, also a good shirt to demonstrate OLED color gamut with

Opened up an SVG file in Emacs and it surprised me by presenting the graphic and there was a little message “Type C-c C-c to switch between text and graphic forms.” What I actually wanted to do is change one color in the graphic and was able to iterate and preview without ever leaving Emacs. Smiling.
#Emacs #SVG

What are OKLCH #colors?
#frontend

Storm Surge in Color: RGB-Encoded Physics-Aware Deep Learning for Storm Surge Forecasting
Jinpai Zhao, Albert Cerrone, Eirik Valseth, Leendert Westerink, Clint Dawson
https://arxiv.org/abs/2506.21743

Storm Surge in Color: RGB-Encoded Physics-Aware Deep Learning for Storm Surge Forecasting
Storm surge forecasting plays a crucial role in coastal disaster preparedness, yet existing machine learning approaches often suffer from limited spatial resolution, reliance on coastal station data, and poor generalization. Moreover, many prior models operate directly on unstructured spatial data, making them incompatible with modern deep learning architectures. In this work, we introduce a novel approach that projects unstructured water elevation fields onto structured Red Green Blue (RGB)-en…

Last photo from last weekends hike to the #Wallberg near #tegernsee .
I so love to see dead scrambled wood covered in moss . I can't even say why - maybe due to all the vivid green.
Anyways- if you're like me, you might like the photo and almost hear the wind in the canopy ab…

im so sick of high tech futuristic aesthetics. doubly so if drenched in purple pink color

Only 4 masked people, including myself, on my flights from #LAX to #SFO.
Of note, 100% of maskers were people of color. A common trend I've noticed in #America, POCs wear mask at a higher rate.

They came for Latinos. They're currently coming for Muslims. Asians, both South & Far East, are next.
This has never been about economic or immigration policy. It's about the color of your skin & neither your money or your US citizenship will help you.
Original post: https://

Two-color partitions and overpartitions: a combinatorial proof
Anton Bugleev
https://arxiv.org/abs/2508.19741 https://arxiv.org/pdf/2508.19741

Two-color partitions and overpartitions: a combinatorial proof
George Andrews and Mohamed El Bachraoui recently explored identities for two-color partitions. In particular, they studied the connection between two-colored partitions and overpartitions. Their proofs were analytical, but they conjectured combinatorial proofs of their results. In this paper we use two-modular diagrams to give a combinatorial proof of their main result.

Modeling spectral filtering effects on color-matching functions: Implications for observer variability
Luvin Munish Ragoo, Ivar Farup, Casper F. Andersen, Graham Finlayson
https://arxiv.org/abs/2508.19291

Modeling spectral filtering effects on color-matching functions: Implications for observer variability
This study investigates the impact of spectral filtering on color-matching functions (CMFs) and its implications for observer variability modeling. We conducted color matching experiments with a single observer, both with and without a spectral filter in front of a bipartite field. Using a novel computational approach, we estimated the filter transmittance and transformation matrix necessary to convert unfiltered CMFs to filtered CMFs. Statistical analysis revealed good agreement between estima…

Taking break now, need quiet, brain tired, social media loud, stim time, see you later.
#ActuallyAutistic #Autistic #Autism

#BeaverWeek #Factoid
Beaver teeth are unique due to their iron-rich orange enamel, which makes them exceptionally strong and resistant to wear. These teeth continuously grow throughout the beaver's life, requiring constant chewing to maintain a manageable size and sharpness. The iron content in the enamel is what gives them their distinctive orange color and provides added strength.

Large Wild Iris. LA Arboretum, Arcadia, California, USA. June, 2025. #laarboretum #flowers #flower

Series A, Episode 04 - Time Squad
CALLY: [Telepaths] How did you get here?
BLAKE: We came from.... [looks quickly to the side].
https://blake.torpidity.net/m/104/344 B7B4

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Harmonious Color Pairings: Insights from Human Preference and Natural Hue Statistics
Ortensia Forni, Alexandre Darmon, Michael Benzaquen
https://arxiv.org/abs/2508.15777 https:/…

Harmonious Color Pairings: Insights from Human Preference and Natural Hue Statistics
While color harmony has long been studied in art and design, a clear consensus remains elusive, as most models are grounded in qualitative insights or limited datasets. In this work, we present a quantitative, data-driven study of color pairing preferences using controlled hue-based palettes in the HSL color space. Participants evaluated combinations of thirteen distinct hues, enabling us to construct a preference matrix and define a combinability index for each color. Our results reveal that p…

Microsoft plans to replace the Blue Screen of Death in Windows 11 with a simplified black screen "providing better information" in an update "later this summer" (Tom Warren/The Verge)
https://www.theverge.com/news/692648/micro

Windows is getting rid of the Blue Screen of Death after 40 years
Microsoft is changing its Blue Screen of Death to a black one. After decades, a simplified black error message will replace the traditional BSOD.

Tuning adaptive gamma correction (TAGC) for enhancing images in low ligh
Ghufran Abualhail Alhamzawi, Ali Saeed Alfoudi, Ali Hakem Alsaeedi, Suha Mohammed Hadi, Amjed Abbas Ahmed, Md. Riad Hassan, Nurhizam Safie Mohd Satar, Waeel Yahya Yasseen
https://arxiv.org/abs/2507.19574

Tuning adaptive gamma correction (TAGC) for enhancing images in low ligh
Enhancing images in low-light conditions is an important challenge in computer vision. Insufficient illumination negatively affects the quality of images, resulting in low contrast, intensive noise, and blurred details. This paper presents a model for enhancing low-light images called tuning adaptive gamma correction (TAGC). The model is based on analyzing the color luminance of the low-light image and calculating the average color to determine the adaptive gamma coefficient. The gamma value is…

On the Role of Color Temperature and Color Rendering Index of White-Light LEDs on the Theoretical Efficiency Limit of Indoor Photovoltaics
Aditi Sharma, Alexander A. Guaman, Jason A. R\"ohr
https://arxiv.org/abs/2506.20811

On the Role of Color Temperature and Color Rendering Index of White-Light LEDs on the Theoretical Efficiency Limit of Indoor Photovoltaics
As the Internet of Things (IoT) continues to grow, the demand for sustainable indoor power sources is increasing. Indoor photovoltaics (IPVs), which are currently in development, present a renewable solution but need to be designed to match specific light sources. While previous studies have emphasized the role of white-light LED color temperature (CT) in determining IPV efficiency and optimum bandgap energy, the role of color rendering index (CRI) remains less understood. In this study, we emp…

Replaced article(s) found for quant-ph. https://arxiv.org/list/quant-ph/new
[2/4]:
- Color code with a logical control-$S$ gate using transversal $T$ rotations
Benjamin J. Brown

Vertex-partitions of 2-edge-colored graphs
J{\o}rgen Bang-Jensen, Francois Pirot, Anders Yeo
https://arxiv.org/abs/2508.18957 https://arxiv.org/pdf/2508.18…

Vertex-partitions of 2-edge-colored graphs
A {\bf $\mathbf{k}$-majority coloring} of a digraph $D=(V,A)$ is a coloring of $V$ with $k$ colors so that each vertex $v\in V$ has at least as many out-neighbours of color different from its own color as it has out-neighbours with the same color as itself. Majority colorings have received much attention in the last years and many interesting open problems remain. Inspired by this and the fact that digraphs can be modelled via 2-edge-colored graphs we study several problems concerning verte…

An Image Noise Level Estimation Based on Tensor T-Product
Hanxin Liu, Yisheng Song
https://arxiv.org/abs/2507.20515 https://arxiv.org/pdf/2507.20515…

An Image Noise Level Estimation Based on Tensor T-Product
Currently, the noise level of color images is estimated by many algorithms through separate selection of each page of the third-order tensor using sliding blocks of size ${M_1} \times {M_1}$. The data structure of the tensor is disrupted by this method, leading to errors in the estimation results. In order not to disrupt the data structure of the tensor, we directly select the tensor using a sliding block of size ${M_1} \times {M_1} \times 3$ and then re-arrange it. The newly obtained tensor is…

Fui a almorzar a una picš y en la tele a color estaban mostrando un compacto de goles de Coquimbo Unido que, me acabo de enterar, es el puntero actual de nuestro campeonato nacional. La gran mayoría de los goles parecían sacados de otro torneo. ¿Seršn solo los goles o ese equipo anda jugando bonito?
Ese fue mi comentario futbolístico. Adelante estudios.
#CoquimboUnido

The Student Agency building is the first thing if you head out of Cornell towards Collegtown -- tomorrow I'm hoping to post some photos of a big yellow crane that just went up in this neighborhood but I've got to get through photos of my trip to Newark Valley and Oakley Corners State Forest first
#photo

Color me surprised.
https://ec.social-network.europa.eu/@EUCommission/114930901454223757

European Commission (@EUCommission@ec.social-network.europa.eu)
Attached: 1 image We have preliminarily found Temu in breach of its obligation to properly assess the risks of illegal products being sold on its marketplace. Evidence shows there is a high risk for EU consumers to come across illegal products on the platform. Analysis of a mystery shopping exercise we conducted found that consumers shopping on Temu are very likely to find non-compliant products among the offer, such as baby toys and small electronics. Find out more: https://europa.eu/!Xdq…

Renormalization group analysis of color superconductivity revisited
Yuki Fujimoto
https://arxiv.org/abs/2508.19728 https://arxiv.org/pdf/2508.19728

Renormalization group analysis of color superconductivity revisited
Color superconductivity in cold, dense quark matter is a key feature of the QCD phase diagram, whose present theoretical understanding relies predominantly on weak-coupling calculations. In this work, we revisit the evaluation of the color-superconducting gap using a renormalization group (RG) framework formulated in effective theory near the Fermi surface. By incorporating quark self-energy corrections into the RG equation, we reproduce the known weak-coupling results from the gap equation at …

Here's the thing about university museums: our art doesn't just sit in storage. During the semester, not a week goes by that we aren't pulling selections from the vaults for classes in a wide variety of disciplines.
https://georgiamuseum.org/gmoa_blog/mu

Isofrequency spin-wave imaging using color center magnetometry for magnon spintronics
Samuel Ma\~nas-Valero, Yasmin C. Doedes, Artem Bondarenko, Michael Borst, Samer Kurdi, Thomas Poirier, James H. Edgar, Vincent Jacques, Yaroslav M. Blanter, Toeno van der Sar
https://arxiv.org/abs/2508.18775

Isofrequency spin-wave imaging using color center magnetometry for magnon spintronics
Magnon spintronics aims to harness spin waves in magnetic films for information technologies. Color center magnetometry is a promising tool for imaging spin waves, using electronic spins associated with atomic defects in solid-state materials as sensors. However, two main limitations persist: the magnetic fields required for spin-wave control detune the sensor-spin detection frequency, and this frequency is further restricted by the color center nature. Here, we overcome these limitations by de…

To keep some lightness and play going while working on a book manuscript, I’ve been having some summery fun in Darien Gee’s paint chip micro prose workshop.
https://salrandolph.substack.com/p/color-oracles

Color Oracles
Micro-prose written by using paint chips as oracle cards in a workshop by Darien Gee.

Kirby Tilt 'n' Tumble was released in Japan 25 years ago today (August 23, 2000). One of the coolest, most unique Game Boy Color games to come out-- it's a real blast. Here's my copy, and also a Japanese ad for it.
#Kirby #GameBoyColor

Nikhil Banerjee - "Raga Komala Rishab Asawari / Raga Maluha Kalyan, Raga Mishra Gara" (1966)
"I do not compromise with anybody or anything else in the world. I do not care, I don’t care if anybody appreciates it or not; I don’t care. .... I want to really go beyond this materialistic world towards Space — there, no compromise. .... A musician must lift up the souls of the listeners, and take them towards Space.” - N.B.

Gotta admit… there's nothing quite like the feel of holding a paper copy of your book in your hands. (First time since 2007, haven't done new printing version since.) And color print-on-demand has gotten remarkably affordable, so price unchanged (just drop royalty a bit).

The leaves are ever so slowly starting to change color. Nice down-by-the-river run after work 😃 Vision was a little shaky, but I was able to do some exercises for that on the path, which is flat pavement, and that helped. Pace is slowly getting better.
#running #runnersofmastodon

re the The fuckity-fuck cycle -
Reminds me of the" 1950s in the United States are often characterized by a strong emphasis on conformity, particularly within the white, middle-class society. This era saw the rise of the suburbs, with mass-produced homes and consumer goods, reinforcing a sense of sameness."
via @…

#ShamelesslyStolenFromSomewhereElseOnTheInternetHonestlyICantKeepTrackOfThisStuffAnymore

Precovery Observations of 3I/ATLAS from TESS Suggests Possible Distant Activity
Adina D. Feinstein, John W. Noonan, Darryl Z. Seligman
https://arxiv.org/abs/2507.21967 https://

Precovery Observations of 3I/ATLAS from TESS Suggests Possible Distant Activity
3I/ATLAS is the third macroscopic interstellar object detected traversing the Solar System. Since its initial discovery on UT 01 July 2025, hundreds of hours on a range of observational facilities have been dedicated to measure the physical properties of this object. These observations have provided astrometry to refine the orbital solution, photometry to measure the color, a rotation period and secular light curve, and spectroscopy to characterize the composition of the coma. Here, we report p…

A really practical application of Gemini 2.5 flash image, is thinking about changing your interior, you can easily change the color of your furniture in images , add elements etc., really fun.
You can try it here, https://aistudio.google.com/prompts/new_chat

Mapping water ice with infrared broadband photometry
Stefan Meingast
https://arxiv.org/abs/2507.18688 https://arxiv.org/pdf/2507.18688

Mapping water ice with infrared broadband photometry
Interstellar ices play a fundamental role in the physical and chemical evolution of molecular clouds and star-forming regions, yet their large-scale distribution and abundance remain challenging to map. In this work, I present the ice color excess method, which parametrizes the peak optical depth ($τ_{3.0}^{\mathrm{max}}$) of the prominent 3$μ$m absorption feature, which is predominantly caused by the presence of solid H$_2$O. The method builds on well-established near-infrared color excess t…

I love this. It reminds me of @…’s sidewalk friends cartoons. And also an idle-time game I used to play as a kid in which I’d scribble intersecting lines all over a piece of paper and then pick out and color a picture or pattern in it.

sinnphobie (@sinnphobie@mastodon.art)
Attached: 1 image Guten Morgen! Ich schaue mir gerade meine alten Fotos an. Dabei bin ich auf das „KaputteStraßeMalbuch“ (2012) gestoßen und musste lachen. [es enthält immer das selbe Foto: ein Stück Straßenbelag mit vielen Rissen; die Motive zum Ausmalen musst du selbst finden]

PC-JND: Subjective Study and Dataset on Just Noticeable Difference for Point Clouds in 6DoF Virtual Reality
Chunling Fan, Yun Zhang, Dietmar Saupe, Raouf Hamzaoui, Weisi Lin
https://arxiv.org/abs/2507.21557

PC-JND: Subjective Study and Dataset on Just Noticeable Difference for Point Clouds in 6DoF Virtual Reality
The Just Noticeable Difference (JND) accounts for the minimum distortion at which humans can perceive a difference between a pristine stimulus and its distorted version. The JND concept has been widely applied in visual signal processing tasks, including coding, transmission, rendering, and quality assessment, to optimize human-centric media experiences. A point cloud is a mainstream volumetric data representation consisting of both geometry information and attributes (e.g. color). Point clouds…

Just picked up this #Salter Improved Family Scale to gift a friend who's getting married and is into old-fashioned stuff and British stuff.
But, it doesn't quite sit at 0. Does anyone have any experience on how to tare a machine like this? There's no knob as far as I can see. The plate on top also doesn't seem like it can be removed without force.
More pictures below. …

Cartel Feria Pulsar 2025
Son 3 dias de música chilena y exposiciones en la Estación Mapocho. Del 5 al 7 de diciembre.
Algunos de los artistas que se seršn parte del cartel: #AnaTijoux #JavieraMena #FernandoMilagros

I really like this idea.
"Originally a faded turquoise, the bus is now vibrant orange with a cream-colored roof, the color scheme used by The Milwaukee Electric Railway & Light Company. Its windows and doors have been repaired, with two awning-style service windows installed to give waitstaff easy access."
#Milwaukee #MCTS #Bus

Color-glass condensate beyond the Gaussian approximation
Jani Penttala
https://arxiv.org/abs/2507.18711 https://arxiv.org/pdf/2507.18711

Color-glass condensate beyond the Gaussian approximation
In the high-energy limit, perturbative calculations in QCD are conveniently done using the dipole picture which factorizes the scattering amplitude into a perturbative part and the nonperturbative scattering off the nuclear target, described using correlators of Wilson lines. These correlators can be computed in the color-glass condensate effective field theory by using a Gaussian model for the color density of the target. In this work, we generalize the Gaussian model to a generic function tha…

Two-Color X-Ray Coherent Diffraction Imaging of Helium Nanodroplets
Linos Hecht, Yevheniy Ovcharenko, Asbj{\o}rn {\O}. L{\ae}gdsmand, Bj\"orn Bastian, Thomas M. Baumann, Alessandro Colombo, Subhendu De, Alberto De Fanis, Simon Dold, Thomas Fennel, Robert Hartmann, Katharina Kolatzki, Sivarama Krishnan, Bj\"orn Kruse, Aaron C. Laforge, Bruno Langbehn, Suddhasattwa Mandal, Tommaso Mazza, Cristian Medina, Christian Peltz, Thomas Pfeifer, Bj\"orn Senfftleben, Keshav Sishodia…

Two-Color X-Ray Coherent Diffraction Imaging of Helium Nanodroplets
Two-color X-ray imaging with Free Electron Laser pulses offers a powerful approach for probing ultrafast structural dynamics in nanoscale systems, combining (near-)atomic spatial resolution with femtosecond temporal precision. The first X-ray pulse captures the object's initial state, while the time-delayed second pulse records its subsequent evolution. A key challenge lies in disentangling the two views simultaneously recorded by the same detector. We demonstrate the realization of this approa…

Using the (still WIP) color settings in #Jellyfin for #Roku, you can make the app colors grayscale and have the posters and images be the stars on your screen.

#ParkerSolarProbe was in the right place at the right time in September 2022: It passed through a magnetic reconnection region in the Sun's corona. #SolarOrbiter observed the event from a distance. Study led by

A little byte swap here, a change to CONFIG_LOGO_LINUX_VGA16 there, badabing badaboom - the framebuffer console has the right colors!
Linux assumes framebuffers to be little endian.
In case they are not, as I recall reading, the client is supposed to take care of conversion.
But what if the client is the (Linux internal) console driver?
I couldn't find a config option, so I hacked a byte swap into the color map helper (there are many similarly named functions btw):

A small and interesting architecture for early fault-tolerant quantum computers
Jacob S. Nelson, Andrew J. Landahl, Andrew D. Baczewski
https://arxiv.org/abs/2507.20387 https://…

A small and interesting architecture for early fault-tolerant quantum computers
We present an architecture for early fault-tolerant quantum computers based on the smallest interesting colour code (Earl Campbell, 2016). It realizes a universal logical gate set consisting of single-qubit measurements and preparations in the X and Z bases, single- qubit Hadamard (H) gates, and three-qubit controlled-controlled-Z (CCZ) gates. State teleportations between [[4, 2, 2]] (2D) and [[8, 3, 2]] (3D) error-detecting color codes allow one to make use of the respective transversal H and …

Odd Ramsey numbers of multipartite graphs and hypergraphs
Nicholas Crawford, Emily Heath, Owen Henderschedt, Coy Schwieder, Shira Zerbib
https://arxiv.org/abs/2507.19456 https:/…

Odd Ramsey numbers of multipartite graphs and hypergraphs
Given a hypergraph $G$ and a subhypergraph $H$ of $G$, the \emph{odd Ramsey number} $r_{odd}(G,H)$ is the minimum number of colors needed to edge-color $G$ so that every copy of $H$ intersects some color class in an odd number of edges. Generalizing a result of \cite{BHZ} in two different ways, in this paper we prove $r_{odd} \left(K_{n,n}, K_{2,t} \right)=\frac{n}{t} + o(n)$ for all $t\geq 2$, and $r_{odd} \left(\mathcal{K}^{(k)}_{n,\dots,n}, \mathcal{K}_{1,\dots,1,2,2} \right) = \frac{n}{2} +…

playing around with my desk lamp 2
#photography #bloomScrolling #tulips #orange

"Air pollution from oil and gas causes 90,000 premature US deaths each year, says new study"
#AirPollution #Pollution #Health

Toronto, Canada 1920s in color, Streetcar [60fps, Remastered] w/sound
https://youtube.com/watch?v=WXOAFe8i9NA&si=hk1l6AorYIGxxieb

Papanicolaou Stain Unmixing for RGB Image Using Weighted Nucleus Sparsity and Total Variation Regularization
Nanxin Gong, Saori Takeyama, Masahiro Yamaguchi, Takumi Urata, Fumikazu Kimura, Keiko Ishii
https://arxiv.org/abs/2506.20450

Papanicolaou Stain Unmixing for RGB Image Using Weighted Nucleus Sparsity and Total Variation Regularization
The Papanicolaou stain, consisting of eosin Y, hematoxylin, light Green SF yellowish, orange G, and Bismarck brown Y, provides extensive color information essential for cervical cancer screening in cytopathology. However, the visual observation of these colors is subjective and difficult to characterize. In digital image analysis, the RGB intensities are affected by staining and imaging variations, hindering direct quantification of color in Papanicolaou-stained samples. Stain unmixing is a pro…

Sometimes I'm falsely credited with discovering the North Bernal Wiggle, the low-traffic bike route up to Bernal Heights Park that avoids steeper slopes. But it was actually Brian Coyne who told me about it.

Ambiguities, Built-in Biases and Flaws in Big Data Insight Extraction
Serge Galam
https://arxiv.org/abs/2506.21262 https://arxiv.org/…

Ambiguities, Built-in Biases and Flaws in Big Data Insight Extraction
I address the challenge of extracting reliable insights from large datasets using a simplified model that illustrates how hierarchical classification can distort outcomes. The model consists of discrete pixels labeled red, blue, or white. Red and blue indicate distinct properties, and white represents unclassified or ambiguous data. A macro-color is assigned only if one color holds a strict majority among the pixels. Otherwise, the aggregate is labeled white, reflecting uncertainty. This setup …

Amazon updates its color screen Kindle Colorsoft with a cheaper 16GB model for $250 and a kids-focused bundle with one year of Kids Plus for $270, available now (Jay Peters/The Verge)
https://www.theverge.com/news/712765/amazon-kindle-colorsoft-16-gb-kids

Amazon is launching a cheaper color Kindle
Amazon is launching two new iterations of the Kindle Colorsoft: a cheaper model and one available in a kids-focused bundle.

Former Silver and Black linebacker Kirk Morrison named Raiders radio color analyst https://www.raiders.com/news/kirk-morrison-named-raiders-radio-color-analyst

Computing an optimal single machine schedule with sequence dependent setup times using shortest path computations
Dominik Leib, Till Heller, Raphael K\"uhn
https://arxiv.org/abs/2507.20611

Computing an optimal single machine schedule with sequence dependent setup times using shortest path computations
We study a single-machine scheduling problem with sequence dependent setup times, motivated by applications in manufacturing and service industries - in particular, the calendering stage in rubber flooring production. In this phase, setup times are primarily driven by temperature and color transitions between consecutive jobs, with significant impact on throughput and energy efficiency. We present a novel solution framework that transforms the scheduling problem into a path-finding problem on a…

Sorry for the bi-t of a tangent, but @… is worth following.
If he can add some extra color to my already vibrant bisexual day, I’m pretty sure he’ll make your day brighter too.
#Bisexual

Competing color superconductivity and color Kondo effect in quark matter
Pradip Kattel, Abay Zhakenov, Natan Andrei
https://arxiv.org/abs/2507.11617 https:…

Competing color superconductivity and color Kondo effect in quark matter
The competition between bulk color superconductivity and the localized screening of a heavy quark impurity, analogous to the Kondo effect, leads to a rich spectrum of phenomena in dense quark matter. We investigate this competition at the edge of a superconducting quark bulk, where both the superconducting gap and the Kondo scale are dynamically generated in a tractable toy model. Utilizing the exact Bethe Ansatz method, we elucidate the resulting boundary physics. We identify distinct regimes …

🇺🇦 Auf radioeins läuft...
Junius Meyvant:
🎵 Color Decay
#NowPlaying #JuniusMeyvant
https://juniusmeyvant.bandcamp.com/track/color-decay-2
https://open.spotify.com/track/68Vl5AxVBDPcnf9qHGPoPb

A row of not-so-purple purple coneflowers (everything I posted is color graded, but this is strongly color graded)
#photo #photography #bloomscrolling

© The British Media, forever.

MetaLab: Few-Shot Game Changer for Image Recognition
Chaofei Qi, Zhitai Liu, Jianbin Qiu
https://arxiv.org/abs/2507.22057 https://arxiv.org/pdf/2507.22057

MetaLab: Few-Shot Game Changer for Image Recognition
Difficult few-shot image recognition has significant application prospects, yet remaining the substantial technical gaps with the conventional large-scale image recognition. In this paper, we have proposed an efficient original method for few-shot image recognition, called CIELab-Guided Coherent Meta-Learning (MetaLab). Structurally, our MetaLab comprises two collaborative neural networks: LabNet, which can perform domain transformation for the CIELab color space and extract rich grouped featur…

Jan. 6 defendant who killed woman in crash going to prison
https://lawandcrime.com/crime/identified-by-the-color-of-her-nail-polish-hammered-jan-6-defendant-who-killed-woman-in-wrong-way-crash-receives-fate/

Was everything brighter 40 years ago? How color perception changes as we age https://www.theguardian.com/wellness/2025/aug/06/ageing-color-perception?CMP=Share_iOSApp_Other

Look at that! Sonnet finally got around to implementing my suggestion to add perceptually uniform color maps to current density (and presumably radiation pattern although I havent checked that yet) plots. Here's Viridis.
My one complaint is that they did it in what seems to be the reverse direction. I've already submitted a request to flip the direction of the ramp (and/or offer both as options).

Emissive perovskite quantum wires in robust nanocontainers
Bea Botka, Erzs\'ebet Dodony, Ildik\'o Hars\'anyi, Michael Stratton, J\'anos M\'ozer, \'Eva Kov\'ats, Katalin Kamar\'as
https://arxiv.org/abs/2508.19833

Emissive perovskite quantum wires in robust nanocontainers
Light emissive nanostructures were prepared from boron nitride nanotubes (BNNTs) filled with inorganic lead halide perovskites. BNNTs provide a platform for facile synthesis of high aspect ratio perovskite quantum wires having color-tunable, highly polarized emission. BNNTs form a flexible and robust protective shell around individual nanowires, that mitigate degradation during post-processing for practical applications, while allowing to exploit the emission of the perovskite nanowires due to …

In the fable of the goose that lays the golden eggs, the greedy people kill the goose because they want all the gold at once.
The thing that really gets me about •this• moment is that the oligarchs aren’t even doing that. They’re killing the magical goose because they don’t like what color it is, and besides they think it has an uppity attitude.
Yes, there’s the fantasy stories about infinite AI prosperity, but that’s BS and they know it. Once the goose is dead and it turns out there’s no gold inside, once US economic and tech success is just ruins and memories, these people are 100% going to say “well at least that damn goose is dead.”
3/2

Behold the Very First Color Photograph (1861): Taken by Scottish Physicist & Poet James Clerk Maxwell
https://flip.it/ZdV70o

Behold the Very First Color Photograph (1861): Taken by Scottish Physicist & Poet James Clerk Maxwell
Since its ancient origins as the camera obscura, the photographic camera has always mimicked the human eye, allowing light to enter an aperture, then projecting an image upside down. Renaissance artists relied on the camera obscura to sharpen their own visual perspectives.

Observed Timescales of Stellar Feedback in Star-Forming, Low-Mass Galaxies
Laura C. Hunter, Liese van Zee, Roger E. Cohen, Kristen B. McQuinn, Madison Markham, Justin A. Kader, Lexi N. Gault, Andrew E. Dolphin
https://arxiv.org/abs/2507.19573

Observed Timescales of Stellar Feedback in Star-Forming, Low-Mass Galaxies
Understanding the timescales of atomic gas turbulence is crucial to understanding the interplay between star formation and the interstellar medium (ISM). To investigate the timescales of turbulence low-mass galaxies ($10^{6.8}

Slavic Techniques for Hat Guessing Algorithms
I. M. J. McInnis
https://arxiv.org/abs/2507.21487 https://arxiv.org/pdf/2507.21487

Slavic Techniques for Hat Guessing Algorithms
2023 undergraduate thesis on a deterministic "hat game." For a digraph $D$, each player stands on a vertex $v$, is assigned a hat from $h(v)$ possible colors, and makes $g(v)$ guesses of her hat's color based on her out-neighbors' hats. If there exists a collective strategy that guarantees a correct guess for any hat assignment, the game is winnable. Which games $(D,g,h)$ are winnable? Two much-studied parameters: $μ(D)$ is the maximum integer $k$ such that $(D,1,k)$ is winnable, and $\hatμ(D…

YEAHH! Finally starting #blogging about #hiking and #photography during our vacation 2 weeks ago!
We started with a nice walk along a lake. As usualy I didn't expect a lot but was eager to…

Results on proper conflict-free list coloring of graphs
Masaki Kashima, Riste \v{S}krekovski, Rongxing Xu
https://arxiv.org/abs/2508.20521 https://arxiv.or…

Results on proper conflict-free list coloring of graphs
Given a graph $G$ and a mapping $f:V(G) \to \mathbb{N}$, an $f$-list assignment of $G$ is a function that maps each $v \in V(G)$ to a set of at least $f(v)$ colors. For an $f$-list assignment $L$ of a graph $G$, a proper conflict-free $L$-coloring of $G$ is a proper coloring $ϕ$ of $G$ such that $ϕ(v) \in L(v)$ for every vertex $v\in V(G)$ and $v$ has a color that appears precisely once at its neighborhood for every non-isolated vertex $v\in V(G)$. We say that $G$ is proper conflict-free $f$-…

Classification of color superconductivity by one-gluon exchange helicity amplitudes and renormalization group equations
Yuki Fujimoto
https://arxiv.org/abs/2508.19222 https://…

Classification of color superconductivity by one-gluon exchange helicity amplitudes and renormalization group equations
Quark matter at high baryon density exhibits diverse pairing patterns classified by color, flavor, and angular momentum quantum numbers. We compute one-gluon exchange (OGE) helicity amplitudes and introduce a nonrelativistic classification of the pairing channel, justified by the channel decomposition in a Lorentz-noninvariant medium and the decoupling of renormalization group flows at leading order. We find the new attractive channel in OGE; the medium effects can render the vacuum-repulsive c…

Series A, Episode 12 - Deliverance
SERVALAN: So I agreed to buy it.
TRAVIS: Do you have the authority?
https://blake.torpidity.net/m/112/250 B7B3

Find the best contrast between one color and a list of options, e.g. for labels in geom_tile: {prismatic::best_contrast()} https://emilhvitfeldt.github.io/prismatic/reference/best_contrast.html

ULISSE: Determination of star-formation rate and stellar mass based on the one-shot galaxy imaging technique
Olena Torbaniuk, Lars Doorenbos, Maurizio Paolillo, Stefano Cavuoti, Massimo Brescia, Giuseppe Longo
https://arxiv.org/abs/2507.20365

ULISSE: Determination of star-formation rate and stellar mass based on the one-shot galaxy imaging technique
Modern sky surveys produce vast amounts of observational data, making the application of classical methods for estimating galaxy properties challenging and time-consuming. This challenge can be significantly alleviated by employing automatic machine and deep learning techniques. We propose an implementation of the ULISSE algorithm aimed at determining physical parameters of galaxies, in particular star-formation rates (SFR) and stellar masses ($M_{\ast}$), using only composite-color images. ULI…

Have you ever looked at clouds or water and tried to understand the complex system of swirls and ribbons?
To take it a step further: Jupiter, the largest planet in our solar system, and its moons still pose puzzles of this kind, which we hope to unravel with the instruments aboard the JUICE spacecraft on its journey there.
Here's a hands-on experiment that explains how the gas giant's cloud swirls are formed.
@…

Visited my 95-year-old Mom in Saskatchewan and came away with Prairie pictures and thoughts on memory and topography and Google color science and healthcare economics. https://www.tbray.org/ongoing/When/202x/2025/07/09/Saskatchewan

Memory in Saskatchewan

AutoWISP: Automated Processing of Wide-Field Color Images
Angel E. Romero, Kaloyan Penev, S. Javad Jafarzadeh, Zoltan Csubry, Joel D. Hartman, Gaspar A. Bakos
https://arxiv.org/abs/2507.15830

AutoWISP: Automated Processing of Wide-Field Color Images
We have developed a software pipeline, AutoWISP, for extracting high-precision photometry from citizen scientists' observations made with consumer-grade color digital cameras (digital single-lens reflex, or DSLR, cameras), based on our previously developed tool, AstroWISP. The new pipeline is designed to convert these observations, including color images, into high-precision light curves of stars. We outline the individual steps of the pipeline and present a case study using a Sony-alpha 7R II …

Deep learning for jet modification in the presence of the QGP background
Ran Li, Yi-Lun Du, Shanshan Cao
https://arxiv.org/abs/2508.20856 https://arxiv.org…

Deep learning for jet modification in the presence of the QGP background
Jet interactions with the color-deconfined QCD medium in relativistic heavy-ion collisions are conventionally assessed by measuring the modification of the distributions of jet observables with respect to their baselines in proton-proton collisions. Deep learning methods enable per-jet evaluation of these modifications, enhancing the use of jets as precision probes of the nuclear medium. In this work, we predict the jet-by-jet fractional energy loss $χ$ for jets evolving through a quark-gluon …

hey friends! One more photo from my recent hike into the #mountains .
My way went from this point to the right over the summit (not seen on the photo), down to the ridge (right into the photo), along the ridge, and down into the middle of the photo.
An amazing day and an impressive trail!

♫ Top 5 artists of the Last.week: R.E.M. (36) Heart (30) Screaming Trees (27) Garbage (25) Pulp (23). #myweekcounted 429 Scrobbles with Lastfm #music via @…

Efficient Lines Detection for Robot Soccer
Jo\~ao G. Melo, Jo\~ao P. Mafaldo, Edna Barros
https://arxiv.org/abs/2507.19469 https://arxiv.org/pdf/2507.19469…

Efficient Lines Detection for Robot Soccer
Self-localization is essential in robot soccer, where accurate detection of visual field features, such as lines and boundaries, is critical for reliable pose estimation. This paper presents a lightweight and efficient method for detecting soccer field lines using the ELSED algorithm, extended with a classification step that analyzes RGB color transitions to identify lines belonging to the field. We introduce a pipeline based on Particle Swarm Optimization (PSO) for threshold calibration to opt…

Characterization of Strain Parameters in a Diamond Nanophotonic Structure
Ayan Majumder, Vivek K Shukla, Anuj Bathla, Brajesh S. Yadav, Nanhey Singh, Padmnabh Rai, Kasturi Saha
https://arxiv.org/abs/2508.16335

Characterization of Strain Parameters in a Diamond Nanophotonic Structure
Negatively charged nitrogen-vacancy (NV$^-$) centers and other color centers in diamonds have emerged as promising platforms for quantum communication, quantum information processing, and nanoscale sensing, owing to their long spin coherence times, fast spin control, and efficient photon coupling. Deterministic placement of individual color centers into nanophotonic structures is critical for scalable device integration, and ion implantation is the most viable technique. Nanofabrication process…

An experimental approach: The graph of graphs
Zsombor Sz\'adoczki, S\'andor Boz\'oki, L\'aszl\'o Sipos, Zs\'ofia Galambosi
https://arxiv.org/abs/2508.17520

An experimental approach: The graph of graphs
One of the essential issues in decision problems and preference modeling is the number of comparisons and their pattern to ask from the decision maker. We focus on the optimal patterns of pairwise comparisons and the sequence including the most (close to) optimal cases based on the results of a color selection experiment. In the test, six colors (red, green, blue, magenta, turquoise, yellow) were evaluated with pairwise comparisons as well as in a direct manner, on color-calibrated tablets in I…

Multibaryon states in the framework of an equivparticle model
Hao-Song You, Xinmei Zhu, Cheng-Jun Xia, Jialun Ping, Ren-Xin Xu
https://arxiv.org/abs/2507.20348 https://

Multibaryon states in the framework of an equivparticle model
Within the framework of an equivparticle model employing mean-field approximation, we investigate systematically the mass spectra of color-singlet $N$-quark configurations with $N = 3, 6, 9, 12, 15$, and 18, which are assumed to be spherically symmetric with quarks occupying the 1s$_{1/2}$ state, i.e., compact multibaryon states. At a given quark number $N$, these states collectively form a single irreducible representation under SU(6) symmetry. Our analysis yields comprehensive mass formulae t…

Strange pentaquarks with a hidden heavy quark-antiquark pair
Sachiko Takeuchi, Alessandro Giachino, Makoto Takizawa, Elena Santopinto, Makoto Oka
https://arxiv.org/abs/2507.20751

Strange pentaquarks with a hidden heavy quark-antiquark pair
The strange pentaquarks with hidden heavy quark pair ($q^3c\bar c$ and $q^3b \bar b$) are investigated by the coupled-channel quark cluster model. Two types of the $q^3$ color-octet configurations are found to provide the attraction, which makes bound states, sharp resonances, and cusps in the baryon meson scattering. A resonance appears at around 4500 MeV in the strange hidden charm sector. Such structures are more clearly seen in the hidden bottom systems.

COLIBRI Fuzzy Model: Color Linguistic-Based Representation and Interpretation
Pakizar Shamoi, Nuray Toganas, Muragul Muratbekova, Elnara Kadyrgali, Adilet Yerkin, Ayan Igali, Malika Ziyada, Ayana Adilova, Aron Karatayev, Yerdauit Torekhan
https://arxiv.org/abs/2507.11488

COLIBRI Fuzzy Model: Color Linguistic-Based Representation and Interpretation
Colors are omnipresent in today's world and play a vital role in how humans perceive and interact with their surroundings. However, it is challenging for computers to imitate human color perception. This paper introduces the Human Perception-Based Fuzzy Color Model, COLIBRI (Color Linguistic-Based Representation and Interpretation), designed to bridge the gap between computational color representations and human visual perception. The proposed model uses fuzzy sets and logic to create a framewo…

Optical charge state manipulation of lead-vacancy centers in diamond
Yiyang Chen, Yoshiyuki Miyamoto, Eiki Ota, Ryotaro Abe, Takashi Taniguchi, Shinobu Onoda, Mutsuko Hatano, Takayuki Iwasaki
https://arxiv.org/abs/2508.18991

Optical charge state manipulation of lead-vacancy centers in diamond
Group-IV vacancy centers in diamond exhibit excellent optical and spin coherence properties, making them highly promising and scalable spin qubit candidates. Since only specific charge states are magneto-optically active, control over the charge state is fundamental for quantum applications. Here, we realize the charge state control of lead-vacancy centers (PbV) through multi-color laser irradiation. We achieve tunable population manipulation of the negatively charged state from 0 to 89%, pavin…

The Complexity of Color-constrained Paths in Semicomplete Multipartite Digraphs
Julian Brinkmann
https://arxiv.org/abs/2507.15667 https://

The Complexity of Color-constrained Paths in Semicomplete Multipartite Digraphs
Every semicomplete multipartite digraph contains a quasi-Hamiltonian path, but the problem of finding a quasi-Hamiltonian path with prescribed start and end vertex is NP-complete even when restricted to semicomplete multipartite digraphs with independence number exactly 3. Bang-Jensen, Wang and Yeo (arXiv 2024) showed that deciding the presence of a quasi-Hamiltonian cycle which does not contain at least one vertex from each color class is NP-complete. Similarly, deciding the presence of a quas…