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2
votes
3answers
26 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 ...
4
votes
4answers
926 views

CMYK vs RGB - Can a DSLR take CMYK images?

I seems that all cameras take photos in RGB format and printers take photos in CMYK format. If the photo is not in CMYK, then the printer converts it to that format with some loss of quality. Can the ...
0
votes
2answers
51 views

Display Color profiles: changing only yellow

How should I set parameters of color profile to change only yellow color output (right now I've got #FFFF00 displayed as #B4B400). Other colors must be left untouched. So I cannot just move Red and ...
2
votes
5answers
240 views

Is it possible to increase digital color depth via interpolation?

I have a set of photos that where scanned at 8 bit color depth. Is it possible to increase the color depth digitally? I realize just increasing the color depth would gain me nothing unless it also ...
3
votes
1answer
158 views

What's an easy way to batch assign (not convert) an ICC profile to .JPG and .CR2 Canon RAW files?

All of the files that comes out of my camera (Canon Rebel T3i) are not assigned a colorspace. Instead, all files the format IMG_XXXX.JPG/CR2 are implied sRGB and _MG_XXXX.JPG/CR2 are implied Adobe RGB ...
2
votes
3answers
218 views

What are techniques for enhancing visibility of photos under natural, outdoor daylight?

I'm trying to find techniques for making photos more visible under daylight (i.e., when daylight reflects off the photo displayed on a screen or print). Does anyone know of any photo editing ...
2
votes
6answers
412 views

How does the gray level in a target impact the true color after calibration

I'm trying to learn how to take photos that are color accurate. I'm testing on a newly painted wall in my kitchen, and has a biege paint with some green tone. ...
2
votes
2answers
888 views

What color calibration device works best with a Dell U2711?

I have a Dell U2711 that I use for color critical work. I am wondering if anyone out there has tested multiple color correction devices and come up with a best use option for photoshop and working in ...
3
votes
1answer
554 views

In photoshop cs5 the color of my image changes when I enter full screen mode, how do I fix it?

I am working in PScs5 on a EIZO color edge monitor. When I open my image photoshop displays all of the colors fine. When I change to full frame viewing, the image color becomes very muted and washed ...
4
votes
2answers
324 views

Why am I getting a cyan cast on Epson Claria printer only in the highest-res print mode?

I use an Epson R260 (Claria 6-color dye) printer with a continuous ink system supplied by Echostore.com for proofing. I use generic storebrand Staples photopaper for this. It's not super-white; it ...
3
votes
1answer
82 views

Color Management Books for Programmer [closed]

I would like to develop a color management library that converts images for display, handles color profiles, does color proofing etc. So far I found this book: Colour Management: Understanding and ...
2
votes
1answer
1k views

How can I fix a blue colour cast from my Canon i9950 printer?

I have a Canon i9950 with an aftermarket CISS. It used to be fine, but having not used it for a while over Christmas, now all my prints are coming out with a horrible blue cast. I have checked that ...
3
votes
3answers
6k views

What steps to take to match screen to print?

I don't print a TON of my photos, but when I do it's because it's really important to me. I've got a MacBook Pro attached to a Samsung 2300 display and an HP Photosmart 7760 printer. I typically use ...
1
vote
2answers
284 views

How can I ensure true representation of colors on a TV screen?

I have a 55-inch Led TV that I would like to use to see my photos. How can I set the colors so that the image displayed matches as close as possible the true colors of the photo?
2
votes
2answers
1k views

What's the best way to calibrate my wide-gamut display used with two different computer systems?

I have a Dell U2410 monitor hooked up to two computers: a Windows machine via HDMI, and my MacBook Pro (running Lion) via DisplayPort. The output from Windows is great: colours are true and text is ...
5
votes
2answers
412 views

How can I evaluate the colour accuracy of my photos?

I have noticed that the colours in my photos are quite dependant on the medium on which I am viewing them — the camera LCD, computer monitor, TV, digital photo frame and print. So, something that ...
14
votes
3answers
808 views

How do color spaces like sRGB and Adobe RGB overlap?

Is sRGB included in Adobe RGB, and Adobe RGB included in ProPhoto RGB? Meaning that a photo in a "lower space" will look like exactly the same in a "higher space", e.g. a sRGB photo will look like ...
5
votes
2answers
1k views

Why do JPEGs only look right when exported from Lightroom in sRGB color space?

When I export RAW photos (Nikon D5000 NEF photos converted in DNG format by lightroom) as JPEG, the only way to get the same color as the original photo is by setting the sRGB color profile in the ...
5
votes
2answers
592 views

Colors while scanning a cross-processed film: why [not] so vivid?

In this question I am trying to understand the nature of colors in scanning cross-processed films. I've thought that I'm okay with photoshop, with subtractive and additive colors etc etc etc, but ...
3
votes
1answer
691 views

Multiple Monitors Seperate Color Profiles?

I have a huey color one and i can only color calibrate one monitor with one color profile. How do you save different color profiles for each monitor? My computer runs on Windows 7 and i use 2 ...
15
votes
3answers
2k views

Why not use a camera as a colorimeter?

Clearly to achieve reliable results, it is essential to calibrate key parts of the imaging pipeline - particularly the computer display on which images are edited. Few seem to question the ...
17
votes
5answers
16k views

How many colors and shades can the human eye distinguish in a single scene?

How many distinct colors, shades, hues, and tints can the average person distinguish in a single scene? In other words, what's the theoretical bit-depth required to be sure of recording a photograph ...
4
votes
2answers
61 views

Are there any good tools to figure out the correct gamma corrections for equal appearence?

Every display device has a different characteristic in regards of how the colours are shown. This can be adjusted by the gamma correction. Are there any good tools that help with finding the right ...