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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What's the difference between Adobe RGB and sRGB and which should I set in my camera?

In my Canon 60D, there's a setting between Adobe RGB and sRGB. What's the difference and what should I prefer when shooting to RAW ?
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Does the selection of sRGB or Adobe RGB in camera when shooting RAW ever matter?

I shoot RAW essentially 100% of the time, and have the in-camera color space setting at AdobeRGB (sRGB is also offered). The raw converter in turn is set to produce sRGB output files. As I understand ...
user's user avatar
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26 votes
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Should I use "sRGB mode" on my computer screen?

I recently acquired the ASUS PA248Q screen for photo processing (and everyday use and gaming: I have just that one display). This display offers a "sRGB" mode. Right now the screen is configured to ...
Matthieu Napoli's user avatar
23 votes
7 answers
4k views

Why isn't the xvYCC color space seeing uptake for still photography?

For the last fifteen years, sRGB has been the primary standard for computer monitors (and for consumer-level printing). That's changing now, as wider-gamut LED-backlit monitors become common. Usually, ...
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Why don't color spaces use up the entire color spectrum?

Take a look at the CIE 1931 chromaticity diagram shown with the sRGB color space gamut. Why are certain colors intentionally left out of color spaces, like you see below? Why not just include all the ...
Marcus McLean's user avatar
19 votes
3 answers
1k views

How much of a difference do different color spaces make?

How much of a difference does it make to use one of the extended colorspaces vs. the normal sRGB? And what difference does it make? Are there situations where it is not important, and conversely are ...
PearsonArtPhoto's user avatar
18 votes
5 answers
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What's the difference between colour space and bit depth?

I know that there are different types of colour space and that sRGB is the most common. Bit depth defines the variations of a colour channel, where (I think) 8 and/or 16 bits are the most common. ...
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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 ...
S. M.'s user avatar
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17 votes
4 answers
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Are RGB numeric values equal to CMYK percentages?

are RGB numeric values equal to CMYK percentages?
Jack's user avatar
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15 votes
4 answers
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What is the difference or relation between a Color Model and a Color Space?

What is the exact relation or difference between a color model and a color space? I find these two terms to be used interchangeably in some literature. Are they simply the same? Thanks!
Tormod Haugene's user avatar
12 votes
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Why are the color spaces we have access to incomplete?

The question, then: If all colors are combinations of red, green and blue, and my monitor's pixels use all three, why is its color space limited to so small a portion of the actual complete color ...
Wombat Pete's user avatar
12 votes
7 answers
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What is the actual color space of film in film photography?

I have been thinking about this question for a while now, and I haven't found an answer online. Modern technology (scanners, screens, digital cameras, printers...) use technical color spaces to ...
MicroMachine's user avatar
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What is the difference between HSV and CIE-Lab color space?

When do we (or should we) use HSV color space and when do we use CIE-Lab color space?
amine's user avatar
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11 votes
2 answers
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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 ...
ideaboxer's user avatar
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10 votes
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Why does L*=0 not correspond to black in the L*a*b* color space?

According to two sources I found, in the CIELAB LAB colorspace a value of L*=0 corresponds to black. Quoting Wikipedia: The three coordinates of CIELAB represent the lightness of the color (L* = 0 ...
DumpsterDoofus's user avatar
9 votes
2 answers
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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 ...
tobiasBora's user avatar
7 votes
7 answers
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Is CMYK less blue than sRGB?

When comparing the sRGB and CMYK color spaces, the sRGB color space encompasses much more blue than the CMYK does. Open Photoshop using sRGB as the color space. Fill the entire image with blue (rgb(0,...
Friend of Kim's user avatar
7 votes
4 answers
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Adobe RGB to sRGB conversion, why does the color change?

When I convert my photos from Adobe RGB colorspace to sRGB for browsers, the color slightly changes and I’m bothered by it. I know that sRGB covers a smaller space of colors so I won’t get an exact ...
Kuvik's user avatar
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7 votes
1 answer
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What is the native color gamut of a modern digital sensor?

What is the area of CIE 1931 diagram that is being covered by contemporary digital camera sensors? I can find triangles for LCD panels being comapred to sRGB and aRGB and ProPhoto. There are always ...
Cornelius's user avatar
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7 votes
1 answer
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Is it true that all current browsers and OSes are "color managed" now?

My understanding is that around 2010 everything except IE (which still had issues) was Color Managed and displayed web images containing embedded profiles correctly. Today (2015) all current ...
JDługosz's user avatar
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Losslessly batch convert many JPEGs to sRGB?

Recently I came across a bunch of weird JPEGs; here's one of them. In Firefox 16.0.2 and ACDSee it looks much more vibrant: However in Internet Explorer 9/MS Paint/Paint.NET 3.5.10 (on Windows 7 64-...
Karan's user avatar
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6 votes
4 answers
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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 ...
Maciej Swic's user avatar
6 votes
4 answers
2k views

Why don't cameras capture using the CIE XYZ color model?

If the CIE XYZ color model is a better representation of what humans see, then why don't CCD arrays in cameras capture data in a way that maps to it rather than the RGB model? It seems especially ...
Vivek's user avatar
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2 answers
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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 ...
zaen's user avatar
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5 votes
2 answers
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How does the in-camera color space setting affect RAW files? [duplicate]

When I switch my Nikon D750 from sRGB to the Adobe RGB color space in the Photo Shooting menu, how does it affect the content of my NEF files? I understand what would happen to JPEGs, but the camera ...
Till Ulen's user avatar
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1 answer
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How is color represented in RAW formats?

I was browsing the forum and found this thread: Does the selection of sRGB or Adobe RGB in camera when shooting RAW ever matter? It makes sense that the selection of either sRGB or Adobe RGB as the ...
Guilherme Rios's user avatar
5 votes
3 answers
2k views

What are the RGB primaries in a camera?

More generally, what is the nature of the gamut? Primaries as peak sensitivity don't behave the same as primaries for mixing output. I suppose this is necessary to know for RAW importing and would be ...
JDługosz's user avatar
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5 votes
2 answers
1k views

Are colour profiles ever stored in RAW files?

Recently on a wildlife photography course, the leader asserted that using aRGB in the camera settings meant less loss of data in the RAW file than if sRGB were used. As I did not understand this I ...
Chris Walton's user avatar
5 votes
2 answers
3k views

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 (...
Florin Andrei's user avatar
5 votes
4 answers
1k views

Why can I see beyond sRGB in CIE Chromatic Diagram

According to CIE 1931 color space chart, the sRGB gamut is what's inside the triangle: As you can see from the diagram, blue is shown outside the sRGB gamut (at about 460 nm wavelength). Knowing that ...
user1032613's user avatar
5 votes
1 answer
195 views

How to minimise the noise in colour values when moving between colour spaces?

Let's say I was to change from RGB to HSV using a software like Matlab and then convert the result back to RGB using the same software. I know that there are going to be some slight noise and error in ...
Jamy codes's user avatar
5 votes
1 answer
232 views

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 ...
Veliko Kosev's user avatar
5 votes
4 answers
14k views

P3 Color Pallet vs sRGB

I have RAW images and export them from Lightroom using the default sRGB colorspace and haven't ever had a need to change this for display on websites. However, I develop websites and apps that run on ...
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5 votes
1 answer
4k views

Human perception in color mixing

Look at this image: 50% of its pixels are blue (0, 0, 255), 50% of its pixels are yellow (255, 255, 0). When I look at my computer display from a distance where I cannot distinguish the ...
Tom Pažourek's user avatar
5 votes
2 answers
11k views

In a monitor for photographic work how significant is 3% additional sRGB coverage?

I am looking for a new display. Photography is not my professional occupation but a hobby, but I still want to have a good enough results. After some investigation I came to following two displays ...
Alex's user avatar
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4 votes
3 answers
563 views

What does the under/overexposure warning mean in image editing software?

We all know exposure warnings that a digital camera offers: If shows which parts are so bright or dark that there's no more distinction towards even brighter or darker areas possible. Meaning that ...
Thomas Tempelmann's user avatar
4 votes
3 answers
2k views

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)?
manarinian's user avatar
4 votes
6 answers
4k views

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 ...
RandomGuy's user avatar
4 votes
4 answers
405 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, ...
E.P.'s user avatar
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4 votes
3 answers
1k views

Why don't we see charts of the colorspace/gamut of a DSLR?

For many displays, we see the color space or gamut shown on chromaticity charts in comparison with some standard color spaces like Rec. 709, sRGB, Adobe RGB, and Prophoto RGB which gives an indication ...
KVS Setty's user avatar
4 votes
6 answers
12k views

Is there free software to compare gamuts?

This questions is related to Why did LR6 soft proofing thought some colors were out of gamut even if they turned out perfect? Since I found out some of my images are out of gamut of the printing ink+...
FarO's user avatar
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4 votes
3 answers
1k views

What is the advantage of using L*a*b in Photoshop?

In a couple posts, I noticed throw-away remarks about using Lab as the recommended or only serious thing to do. Why?
JDługosz's user avatar
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4 votes
2 answers
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Why is Lightroom not rendering what I see in every other JPG viewer?

I'm new to Lightroom 5. To learn I tried to take an existing photo and improve it in the Develop module. I exported the results but the color cast is different in every other JPG viewer and browser ...
feetwet's user avatar
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4 votes
4 answers
338 views

How to calibrate colors from photos for classification purpose (ICC profile)?

For a scientific study, I have to classify pictures of crop canopy in two classes: vegetation / soil. These picture are taken at several places, different times and date. The idea is to use the same ...
DJack's user avatar
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4 votes
2 answers
7k views

What does "calibrating a screen to sRGB" mean?

I occasionally read on Internet the mention of "calibrate your display to sRGB" or "a display calibrated to sRGB". Now, I am no expert in color management, but I have this thick book which I am ...
Armen Michaeli's user avatar
4 votes
3 answers
357 views

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 ...
Ralph's user avatar
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4 votes
2 answers
466 views

What's the perfectionist's workflow for taking a photograph from capture to print?

I'm interested in perfecting the 100% ideal method of doing things, keeping the color tones and quality through capturing to the printing and publishing. This isn't about handling the camera or doing ...
inckka's user avatar
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4 votes
2 answers
30k views

LightRoom 5 Export looks different to the Develop screen [duplicate]

I hope that someone might be able to help me here, I have recently started with DSLR photography and I jumped straight in at the deep-end I think (although i've used compacts and bridge cameras for a ...
Stefan's user avatar
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4 votes
1 answer
505 views

Understanding Hue, and is there something else I should be using?

I am trying to isolate objects of a certain color in an image. Looking at this image, you can see that I have extracted the hue channel, and have filtered these values so that the closer a pixel's hue ...
Dan's user avatar
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4 votes
1 answer
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What is the color reproduction accuracy on mid-2012 non-Retina Macbook Pro-s and how applicable it is for photo editing?

What is the color reproduction accuracy (sRGB color space coverage) for Apple Macbook Pro non-Retina models from mid-2012 and how applicable it is for photo editing? I read that MBP Retina display ...
insignum's user avatar
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