Questions tagged [color-spaces]

A colour space is a specific organization of colours. In combination with physical device profiling, it allows for reproducible representations of colour, in both analogue and digital representations. The colour spaces most commonly encountered in photography are Adobe RGB and sRGB.

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How to separate the RGB colour space to only N colours?

In a JPEG image, we may have thousands of distinct RGB values. What is the process called of translating these numerous RGB values to just N distinct colour names/values? (I'd like to know the name ...
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Would spectral responses of camera pixels be more "raw", more compact and superior to ICC/DCP camera color profiles? If not, why not?

Background: I'm trying to understand the function of camera color profiles (for raw output) in terms of the hardware. I have found lots of web sites that explain the function of camera profiles from a ...
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Why is CMYK more efficient/beneficial than RGB for performing printing operation on white paper?

We know that CMYK is subtractive color model and RGB is additive color model.If we make 3D( R: x-axis, G: y-axis, B: z-axis) cube for RGB it starts with darkness (black) and we gradually add light; an ...
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Confused with my monitor Picture Modes

I've recently bought my first "Designer Monitor", Benq PD2500Q (yeah I know it's probably still shit for professionals, but for me it's the first 'better' monitor). I'm very impressed by it ...
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Image Color Scheme getting faded when opening with MSPaint

I have the following image (have put a screen-grab of the image as its size is more than 2 MB - the original can be downloaded from https://drive.google.com/file/d/1rC2QQBzMhZ8AG5Lp5PyrpkOxwlyP9QaE/...
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Export photos from Lightroom to leverage HDR display on modern iPhones

If I take a photo with my iPhone 13 Pro Max camera and view it on the phone screen, bright lights and colors appear very strong and vivid like an HDR movie on an HDR TV. This is controlled by a ...
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Colour shift in photographs between applications? (profile included)

I have Asus ProArt PA329 monitor. I made a full system reinstallation a few months ago, had not really worked photos for a while due to lockdown and other things etc. More recently, I re-installed the ...
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sRGB picture shows very differently on photo editor vs. web (driving me crazy!)

The photo looks nice Affinity Photo, GIMP and Photoshop in my MacBook. I preview the photo also with Mac Preview, and it shows exactly the same. But when seeing the picture in the browser, it shows ...
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Why color-wheel websites (Adobe...) claim these colors are complementary

I just learn about the different color harmony styles models, and I was playing with Adobe color wheel website using the complementary style, but I'm realizing that the proposed colors are not really ...
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Where can I see ProPhoto RGB photos

Where can I see ProPhoto RGB photos? Do I need a special monitor? Can I print it? If I print it how would it look (will it look like in the special monitor)?
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Do Google Photos maintain any other color spaces except sRGB

Do Google Photos maintain any other color spaces except sRGB? Does it convert photos to sRGB automatically and save them like that?
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sRGB mode a necessary for monitors?

I was wondering. If there's no dedicated sRGB mode on a monitor, can you still calibrate it to an sRGB color gamut for photo and video color grading? I am referring to the Cooler Master GM34CW with 95%...
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Color space vs bit-depth and nesting

Okay, so I've read questions such as this one explaining the difference between the two which was illuminating, but I still have a few questions I didn't really quite gather from this. What I took ...
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6500k calibrated monittor - what are the RGB values to represent a given monochromatic radiation of known wavelength?

Say I've calibrated a monitor to the standard 6500k 2.2 gamma, and the color space is sRGB. On this monitor, I would like to have a reasonably accurate representation of a monochromatic radiation (...
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Look Up Tables in Colour Science

I am looking into the colour science regarding lookup tables, and their application to images. I am trying to find out what the values within the LUT actually represent. LUT_3D_SIZE 33 0.000000 0....
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When soft proofing, why does the image change between relative and perceptual intent when there are no colours out of gamut?

My understanding is that relative intent just clips the out of gamut colours and that perceptual intent scales (compresses?) the colours to make the out of gamut colours fit. It seems to me there is ...
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Color regrading/correction/calibration between photos for scientific color analysis using in-image palette

This question is not quite in the same vein as artistic photography but I feel that this StackExchange is best suited to answering the question. Closest questions I could find for further reading ...
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How to reduce color gamut in Photoshop?

I would like to see how the image will be displayed on the monitor with lower color gamut. Am I able to mimic this using Photoshop?
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Can an RGB channel be shifted to increase color gamut into the violet range?

TL;DR: Can additive RGB color gamuts produce the perception of light that has a shorter wavelength than the Blue component? If not, does shortening the wavelength of the shortest component of a 3-...
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How can I get both monitors to look the same?

I have used Acer V247Ybip for about a year and decided to buy Acer V247bi to use for second monitor, which is basically the same monitor, but without the Display Port. The problem is that basically ...
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1 answer
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Do CEIL LAB images look really the same on all monitors?

Monitors can show only RGB models, which has different values on different settings of the monitor. CEIL LAB was designed to be device independent, however I have a confusion that essentially the ...
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1 answer
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How can I display Color Profile of every jpeg in a folder?

I need to find the color profile of every jpeg in a folder so that I can determine which ones I want to edit. Can I batch list them? I do not have Photoshop.
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Pseudo high-bit grayscale - does this idea already exist? [closed]

I have an idea for a grayscale color space that is able to have 11 bits of grayscale depth on a typical 8-bit color depth monitor. The idea I'm going to detail is simple, so I assume it must exist ...
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Why does GIMP ask me to switch between sRGB color profiles?

I'm scanning pictures with an Epson Perfection V600 and editing in GIMP. When I open these pictures, I get a dialog asking if I want to convert the color profile from "EPSON sRGB" to "GIMP built-in ...
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How do I save this 'band-less' version of this image from ACR?

The sky shows banding in Photoshop, but if I press ctrl+shift+A to go into ACR, it's gone. I assume that no actual pixels are being changed when I enter Adobe Camera Raw, and I'm not touching any ...
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Same sRGB image different colors in Lightroom, Windows, Web and Android

recently I've started having troubles with my image colors. The same image (sRGB) looks different in Lightroom, Windows, and Android. I import my photos that were shot on Fujifilm X-T3 in raw (.RAF) ...
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2 answers
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Why do pure colors (red/green/blue) become a mixture of colors when converting raw?

In trying to understand how raw is converted, I created a synthetic raw image that has a red, green and blue gradient strip, with a gamma of 2.2 (dng). I made the synthetic raw by converting an image ...
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Is there an better than Adobe RGB monitor?

All monitors I see claim 99 percent of the Adobe RGB and that's it Is there something better? We are seeing 14 bit HDR televisions these day which uses 14 bit altough I am not sure what exactly they ...
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Is it possible to make an monitor that can output colors perfectly? [closed]

We have come from long way from my rather bad IBM E74 monitor with terrible color reproduction to the brand new monitors with 14 Bit HDR. But will we ever see an monitor that can output colors that ...
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2 answers
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How did color spaces get their names?

Why RGB instead of BGR, GBR or perhaps GRB? Why CMYK instead of YMCK, KMCY, CKMY, YKMC and etc?
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4 answers
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Are there reasons to NOT use Adobe RGB in JPEG/TIFF files and CIELAB in TIFF files?

Back in the day of 256 color displays. We had web safe colors but today nobody uses 256 color systems. These days people are using either sRGB or Adobe RGB monitors and browsing the net with it. In ...
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Why does the imported JPEG from my Canon Powershot G9X Mark II on PC screen differ quite significantly from the camera display? [duplicate]

Consider the attached sample images. I took them circa 4:50 AM and 3:50 AM, respectively. On the Live View display of the Powershot G9X Mark II, they were full of light. The pictures were taken as ...
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2 answers
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How would I construct the CIE Yxy diagram? [closed]

It seems most references showing a CIE Yxy diagram can be reduced to very few (one?) sources. If I wanted to construct the diagram myself from some published measurement values, how would I do it? I'...
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Standard color space more vivid than Adobe RGB in Dell DELL UP2516D?

I noticed than the Standard preset of colors of my monitor produce more vivid colors than Adobe RGB preset. As far as I know, the monitor can reproduce both sRGB and Adobe RGB. Thought that the Adobe ...
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Is there a way to see CIE 1931 chromaticity diagram in its true color?

As I understand, on ordinary monitor I could only see a subset (e.g. sRGB) of the horseshoe shape of visibile color. Is there any lab device that could generate all the visible colors and project ...
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3 answers
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How do monitor and image editing software color profiles interact?

I've Googled, I've Bing-ed, I've even DuckDuckGo-ed, but I can't figure this out. Here it is: My monitor has its own color profile, currently "eyeball" calibrated but soon to be really calibrated. ...
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3 votes
1 answer
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ColorSync found bad profile on Mac. What are the possible side effects?

Today something led me to discover ColorSync Utility under Applications > Utilities. Upon Verify I discovered 9 bad profiles on my Mac. Searching for profiles... Checking 63 profiles... /Library/...
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4 votes
6 answers
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Should I use ProPhoto RGB?

I am fairly new to photography, and I have heard many people say that I should import my images in Photoshop using ProPhoto RGB as color space (only for the RAW images). However, when I import my ...
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4 votes
4 answers
315 views

Is it possible to buy chromaticity-plot color standards? If so, how, and where?

(I hope this is the correct site to ask this; if it isn't, sincere apologies ─ and please help me find a good place to ask :-).) I'm a physicist and I've been dabbling in color theory for some time, ...
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3 votes
2 answers
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How does Lightroom group colors inside the HSL panel?

I am working on a small application that would allow the same functionality as the Lightroom HSL Panel: I would like my application to behave very similarly to how Lightroom does. Therefore I grouped ...
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SilverFast CIELab: What illuminant and observer is assumed?

I am scanning prints with the scanner software SilverFast, which offers the option to scan to a file containing CIELab values. However I need to know what CIE illuminant and observer is assumed when ...
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1 answer
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How to process images to emulate mismatched color profiles?

I have been trying to emulate a saturation effect that occurs when I do the following in Photoshop: Select the Export As dialog and choosing JPEG without integrating an ICC profile Select the Open ...
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11 votes
2 answers
9k views

Which color space is used by my iPhone 8 photos?

While my old iPad mini photos say their color space is sRGB, my new iPhone 8 photos tell me their color space is "65535" ("unknown value"). Some sources say this value means "uncalibrated", but that ...
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1 answer
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Are these versions of sRGB v2 the same?

I have seen references to two versions of sRGB v2 IEC 6 1966-2-1, for example here ICC.1: 2001-04, for example here Are these the same, or different? They come from 2 different organizations (IEC=...
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After soft-proofing in Lightroom, which color space should I embed with the exported JPG?

Let's say I've loaded my print shop's ICC profile for the printer/paper/ink combination I'll be using into Lightroom, I've soft-proofed the image in the Developer module with said ICC profile, and I'm ...
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1 vote
1 answer
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Are the sliders in Adobe Camera Raw input color space independent?

Are the sliders (shadows/highlights) in Adobe Camera Raw affecting the device-dependent data before transformation to device-independent color space, or does this transformation happen after the input ...
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1 vote
1 answer
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How to create abstract color profile to encode specific color transformation?

I have a set of images (48-bit TIFF) that are encoded in ProPhoto RGB. I have a set of alternative input color profiles (related to ProPhoto RGB, but slightly different) that I can assign to the ...
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3 votes
6 answers
10k views

Colors are different in Adobe Camera Raw compared to Photoshop (sRGB)

Here is a .NEF raw file taken with a Nikon D7000, opened in Camera Raw. Note that sRGB IEC61966-2.1 is chosen as the colour profile. I have not modified any image settings. The reds appear washed out....
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2 votes
1 answer
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Photoshop color profile mismatch when open raw

When i open my raw files in adobe photoshop, a message box opens asks: the document has an embedded color profile that does not match the current RGB working space. Embedded: Adobe RGB (1998) ...
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2 votes
3 answers
239 views

What are the benefits of profiling a factory-calibrated AdobeRGB monitor?

Suppose I have a high-end monitor that supports AdobeRGB natively and is calibrated at the factory. Assume that I just got the monitor and that factory calibration is spot on. Do I still need ...
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