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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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5
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3answers
3k views

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 ...
13
votes
2answers
31k views

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 ...
3
votes
1answer
1k views

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 ...
4
votes
1answer
458 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 ...
3
votes
2answers
628 views

Does a YCbCr color picker exist for Windows or Unix?

Is there any YCbCr color-picker so that I can better understand the color space? For example, I want to get the range from the blue sky or from green grass. I need to know the value ranges to detect ...
20
votes
3answers
10k views

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 ...
3
votes
2answers
293 views

Should I perform the final color space conversion before or after final sharpening of an image?

When preparing an image for the web (or other media), the last two steps is usually to resize the image to the desired resolution and sharpen it at that resolution. However, when working in a ...
4
votes
3answers
455 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 ...
31
votes
8answers
11k views

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 ?
3
votes
1answer
458 views

What is the photopic luminous efficiency function?

What is the photopic luminous efficiency function? Is it actually a the, or are there multiple such functions? Is it an absolute fact of nature or simply an agreed-on standard? If the later, who ...
18
votes
5answers
2k 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, ...
17
votes
3answers
881 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 ...
15
votes
3answers
2k views

Are RGB numeric values equal to CMYK percentages?

are RGB numeric values equal to CMYK percentages?