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Color is the human perception of light as having different hue, from reds and oranges, through yellows and greens, to blues and violets. Color is a fundamental aspect of the arts and photography.

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2
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3answers
16 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 ...
17
votes
2answers
758 views

Why do I see this yellow color shift at high ISOs and fast shutter speeds? [duplicate]

I recently purchased a full-frame DSLR with a reported highest ISO of 204,800. I’m intrigued by the possibilities of the high ISO range and how far Lightroom and Aperture (I use each of them) can ...
68
votes
6answers
11k views

Do fluorescent lighting and shutter speed create a problem with color cast?

I took a bunch of photos at my son's martial arts club using a D90 with a 50mm F1.8. The club is lit with overhead fluorescent lighting, and I was getting some weird results where some shots are ...
4
votes
4answers
923 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 ...
3
votes
3answers
130 views

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!
1
vote
1answer
156 views

How to properly color calibrate a 27 inch iMac monitor (OS Maverick)?

We have a 27" iMac monitor and want to know how to color calibrate it (and with what recommended product) We are looking for someone who has actually done this.
5
votes
3answers
1k views

RAWs looking massively different in Aperture/Mac OS Preview compared to camera preview and (Canon) PictureStyleEditor

Yesterday, I have been shooting photos at a christmas market -- especially a band that played there. Since everything happened in the evening and it was quite dark, I thought using RAW instead of JPEG ...
21
votes
4answers
1k views

Is the Zone System useful with a DSLR?

The Zone System was originally used with B&W film photography. With colour digital photography, though, couldn't you get much the same results by keeping an eye on the histogram? I think I might ...
14
votes
3answers
805 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 ...
4
votes
3answers
465 views

How can I capture the true colors of my reef aquarium?

I have a canon EOS T4i with stock EF-S 18-135mm f/3.5-5.6 IS STM lens, a Rokinon 35mm f/1.4 Lens, and a Sigma 150-500mm f/5-6.3 DG OS HSM APO lens. I'm trying to photograph the various corals in my ...
1
vote
2answers
146 views

How can I whiten my background, without whitening the subject or modifying subject colours?

If I take portraits against a white background I like to use a colorchecker passport to ensure that my subjects come out at the end of my workflow looking 'true to life'. The problem is that due to ...
23
votes
7answers
2k views

Why are there no dark yellows, or bright violets?

In his book The Photographer's Eye, photographer and author Michael Freeman says: Another consideration is relative brightness. Different hues are perceived as having different light values, with ...
11
votes
7answers
370 views

How to set tint if one is colour blind?

How should someone with red-green deficiency in colour vision set tint in Lightroom or other post-processing tools?? Are there any external tools (other than asking someone) that say whether white ...
2
votes
3answers
226 views

How can I get the colors right in this indoor architectural photo?

I am trying to take a photo with precise colors. I am not sure what am I missing so I could get similar colors. Here is the result that I would like to achieve: ) This is the photo that I took: ...
10
votes
1answer
405 views

What special properties does 18% gray color have in photography? [duplicate]

I keep seeing 18% gray color backgrounds being used in different areas of photography. What's special about it, why 18% and not 17 or 19?
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 ...
17
votes
10answers
12k views

What is the best background color to use when displaying images?

A group of people and I are creating scientific posters for a conference. The posters will be displaying multiple 5x7 photos. There is minimal text on the poster. With that being said, what ...
2
votes
3answers
191 views

Do colors in photographs depend on ambient temperature?

My friend, previously a photographer, said that if you are taking photos in cold weather the photo is more blue (as if a slight blue filter has been applied). Inversely, taking photos when it is warm ...
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 ...
-2
votes
1answer
121 views

What kind of filters might have been applied to these photos?

Neither of these is mine (obviously, since I'm asking), but I see both effects quite frequently as of late. I'm trying to figure out the nature of them. Can anyone make a guess as to what kind of ...
7
votes
5answers
1k views

Do colors always come out bland when shooting in RAW format?

I shoot all my pictures in RAW format and every time during post processing I need to tinker with the saturation because the color comes out bland. I do realize that changing camera saturation level ...
9
votes
4answers
9k views

What is the difference between halftoning and dithering?

As I understand it, halftoning is the process of taking an image with a given color range (as defined by the colorspace) and blending the colors to form an image with a smaller range of colors. How ...
13
votes
1answer
352 views

Why do pictures of fire come out purple?

When I'm taking pictures of my log fire the flames and embers come out in rich shades of purple rather than red. I've tweaked everything I can on my camera; white balance, metering, ISO, exposure, but ...
0
votes
6answers
126 views

Does the subject's face have too much red tint?

I took the attached picture with an iPhone 4, outside around 5pm, which was close to sunset. Does the subject's face have too much red tint? If yes, how would I fix this?
4
votes
3answers
280 views

How can I improve the dull colors in my product photography?

I try to shoot some pictures of apparel, lingerie, cometics on a white fluffy rag or a white paper board with a Canon EOS Rebel T2i + a Canon - Speedlite 270EX II External Flash on a tripod in day ...
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. ...
13
votes
5answers
2k views

What is the major factor that makes colors in photos very vivid?

Once you have a good enough camera, what are the other major factors that makes some of the photo very vivid? For example, looking at the following picture, the colors are vivid. If I take the same ...
1
vote
3answers
148 views

How does the spectral sensitivity of different sensors affect the resulting photo?

I am learning about light and color formation but I don't understand how does the sensitivity affects an image. Take for instance the different sensitivities for two "cameras" for each RGB channel ...
4
votes
4answers
217 views

How does low-light conditions affect color quality?

I recently photographed an event that took place while the sun was setting. The quality of colors seem to deteriorate as it gets darker. The scenes were well-exposed as the ISO changed from ~1200 to ...
2
votes
2answers
885 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 ...
2
votes
1answer
364 views

How to Color Grading look like this?

I found a photo from Flickr The tone of photo seem like a japanese natural style (eco friendly). Highlight mostly green and add some Faded. How do I create this color grading in Photoshop. I, ...
6
votes
3answers
282 views

How can I avoid or correct the “inverse Ageratum effect” in digital photography?

I was used to the ageratum effect with film cameras: as the red pigment on film is much more sensitive to IR than the humman eye, some flowers (such as the ageratum) appear pink in a photograph while ...
5
votes
2answers
458 views

How can I get the colors in my photo to look like a painting by the Dutch masters?

I am trying to make pictures look like paintings. I am interested about reaching a similar color grading. This is an example: link I'm asking an opinion about what kind of techniques should I ...
7
votes
2answers
234 views

Why don't mainstream sensors use CYM filters instead of RGB?

From what I understand most digital cameras have a sensor where each pixel-sensor has three sub-sensors, each one with an R,G and B filter. RGB is obviously the more fundamental colour model since it ...
17
votes
3answers
746 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 ...
0
votes
1answer
138 views

color errors in dark areas - canon 700d/t5i

yesterday I bought an Canon EOS 700D with kit lens 18-55 STM. On my test images I encountered green "clouds" on dark areas. Is there a name for this kind of error and does it originate from the lens ...
2
votes
1answer
45 views

Reducing color balance errors across multiple cameras

I'm an electrical engineer, but I thought I'd ask this in the photography section to get some more insight from experienced photographers. I am designing a system which will stitch images taken by ...
4
votes
2answers
194 views

What does 'freedom of color from white or gray' mean?

The dictionary entry for the word chroma says, "the purity of a color, or its freedom from white or gray." What does that statement mean? What is color made of? What causes color? I was reading this ...
26
votes
7answers
992 views

Is it possible to be color-blind and still be a good photographer?

Is it possible to be colour-blind (or color-blind, in the US) and still be a good photographer? Are there any steps one can take to mitigate the effects of colour-blindness? Can you point me to any ...
3
votes
3answers
500 views

How do I create this soft and bright effect?

This is my favorite look for photos, and I've been trying to achieve this for some recent family vacation photographs. What is the process? Here are some links to some examples: ...
8
votes
4answers
802 views

Are there written guides or rules of thumb for setting color saturation, clarity, vibrance, etc. in post-processing (or in general)?

This isn't another "how do I get a picture to look like such-and-such-link-inserted-here in LR" question. There's a saturation (no pun intended) of these questions here. Interesting, but not general ...
2
votes
5answers
239 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
157 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 ...
13
votes
9answers
12k views

Why is Aperture changing the color of my RAW photos?

For some strange reason, Aperture 3 seems to shift the colors of the raw images, after importing them. For example, the reds become washed out and something not red. In the following example, the red ...
8
votes
6answers
3k views

How do pros manage to make the color green so bright in their nature photographs?

I am an amateur photographer, I had a question how do professional photographers manage to make the green color so bright in their images. For example: ...
2
votes
1answer
184 views

multiple pictures give different shades for same scene and lighting

I am photographing an object 4 cm away from the camera using 5MP phone camera. It is being used in macro mode with fixed ISO 100 setting. Automatic White balance is being used along with ...
10
votes
4answers
874 views

Why does the red area in this photo look very un-natural?

I was looking through some photos I took at RAF Cosford a few weeks ago, and noticed this big red area (it's a large door surround on the floor below) In the photoshop RAW preview, it looked almost ...
8
votes
2answers
38k views

How do I select all pixels that match an exact color value in Adobe Photoshop?

Is there any way to select all pixels on the current layer that match a specific color value exactly? My first instinct is Select > Color Range..., but I cannot determine how to input a specific ...
4
votes
1answer
150 views

Why can my old Epson dye printer produce accurate reds but my professional lab can't?

My professional print lab uses a high-end Fuji Frontier machine with its own profile that the customer downloads. The prints are of exceptional quality, except for the colour gamut, particularly with ...
3
votes
4answers
285 views

How does one do light painting with in focus subject? Maybe a composite?

I understand and have tried some rudimentary light painting, but I'm still not sure how one might achieve something like the photos here: http://www.modelmayhem.com/portfolio/pic/18221422 Is this ...