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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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8k views

Does Gimp have a Match Color function similar to that in Adobe Photoshop CS3+?

In a recent question, Steve Ross points out that Adobe Photoshop has a useful feature for matching color between photographs. Of course, color adjustment can be accomplished in Gimp with careful use ...
6
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2answers
1k views

How can I fix the color of blue photos using settings from “good” photos?

Imagine how photos with a bad blue filter look. I can recolor those pictures with the color filters from any image manipulation program like gimp. Now my question is: can I "grab" the right settings ...
6
votes
4answers
1k views

What sort of color correction and effects are used in this photo?

I've seen plenty of photos like this before and I've always liked them. They're usually warmer colours and they seem to have a bit of a haze to them. Photo by David Guenther What sort of post ...
10
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1answer
3k views

What is the function of the tint slider in Lightroom?

In Adobe Photoshop Lightroom (c) there's a Temp slider which controls the color temperature of the photo. To the left it creates a blue, cold looking image. To the right, an orange, warm image. This ...
5
votes
5answers
7k views

How can I take selective color pictures with my Canon T1i?

I want to select a certain color using my camera so only that will be recorded as color, with all the rest in gray- or b/w-scale. Meaning, only one color and its shades appear colored, and rest is ...
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
5answers
1k views

How do I achieve a vintage photo effect in Photoshop?

How can I achieve this vintage color tone in Photoshop? Photo link
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2answers
614 views

How do I achieve the color tone effect in this sample photo in Photoshop?

In post-processing, how do i achieve a high dynamic range, but low local contrast, monotone (but not necessarily grayscale) effect for photos? An example would be this "li river" shot, which has a ...
13
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4answers
1k views

Does black and white photography still make sense?

I think at first it was because of a limitation of the cameras present at the time, but with the color cameras that we have available now, what do you think of black and white photos? In other words, ...
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 ...
30
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8answers
6k 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 ?
11
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4answers
3k views

How do I get this “Washed out” effect for street photography?

I was browsing an unrelated question here and noticed this photo: http://www.flickr.com/photos/sparth/5730541580/lightbox/ I've seen countless street-photography shots with this kind of color effect ...
13
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2answers
2k views

How does the colour of ambient lighting affect colour rendition?

How does the colour of ambient lighting affect colour rendition? For example: If I stand under a sodium-vapour (orange) streetlight and calibrate my camera's white balance, what effect would this ...
12
votes
2answers
1k views

How can I keep skin color from coming out too red in prints?

I've noticed lately that subjects with darker skin, especially brown hues, tend to come out with lots of red in prints. When shooting against red or brown backgrounds, this effect is significantly ...
4
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5answers
3k views

Which is better: Silver or Color Efex Pro from Nik Software?

I'd like to buy a plugin from Nik Software; which is the better plugin between Silver Efex Pro and Color Efex Pro?
5
votes
2answers
788 views

Why are red objects coming out unnaturally in my photographs?

I have observed lately during my shoots that when I try to capture a red object with hardly anything in the background, the color doesnt seem to come exactly as what it is in reality. With flash or ...
8
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2answers
765 views

Why are sensors less sensitive to blue light?

This is a followup question to Why is the blue channel the noisiest?. The simple answer to that question is that sensors are less sensitive to blue, and therefore require more amplification, which ...
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3answers
2k views

Why is the blue channel the noisiest?

It is widely observed that the blue channel in digital cameras is the noisiest. I've certainly noticed that with my camera. Why is this? Is it an artifact of some particular technology (e.g. Bayer ...
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 ...
8
votes
4answers
2k views

Why do bright red flowers end up without details?

With our DSLR, indoor flowers come out detailed. Outdoor violet and blue flowers are detailed, too. But outdoor bright red flowers give us problems. They come out as a single flat detail-less spot. ...
9
votes
3answers
3k views

What is the difference between black and white film and color film?

What is the difference between black and white film and color film? How does color film record color? Is it like black and white film with something more, or is it entirely different?
23
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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 ...
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 ...
3
votes
1answer
371 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 ...
9
votes
4answers
2k views

Why do my photos looked washed out when using my telephoto lens?

I own an aging Nikon D40 and recently picked up a new telephoto lens: the Nikkor 55mm-300mm f/4.5-5.6. I've noticed that when I zoom in on subjects, the color in my photos often looks washed out. Here ...
10
votes
3answers
600 views

How would I go about using my SLR to measure the 'greenness' of a photo?

Background My digital pictures can be read into a computer program like Matlab or R as a m x n x 3 matrix where m x n is the number of pixels observed by each of the three (red, green, and blue) ...
3
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2answers
595 views

Why is my Pentax K-x producing artifacts and color banding?

my Pentax K-x is acting up :( In low light scenarios I got heavy color banding and 'strange' image artifacts. You can find an example here: http://imgur.com/v0lzP I took it at ISO 400 and the color ...
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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 ...
4
votes
1answer
287 views

What is the green tinge in my photo? [duplicate]

Possible Duplicate: Problem with fluorescent lighting and shutter speed? I am shooting with a 5D MkII and a 50mm f/1.8 II. In the picture below you can see a really obvious green tinge on ...
18
votes
4answers
6k views

Is there an equivalent to Adobe's “Vibrance” in Gimp?

See: What's the difference between saturation and vibrance in Lightroom? In a nutshell, Adobe's Vibrance is a "smart" color adjustment that increases saturation selectively, leaving skin tones ...
15
votes
5answers
6k views

How can I make colorful, “saturated” photos like this example?

This may not be the best example but I liked the colors and angle. I have seen lot of similar photos. They look very colorful but not overdone (does it have any technical term) . Any suggestions for ...
8
votes
4answers
3k views

How is the YCbCr color space represented in a JPEG image?

I know that a 24 bit image dedicates 8 bit each for R, G and B. Is it just for RGB color space. In YCbCr color space for a 24 bit JPEG image, how are the bits distributed?
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6answers
2k views

How can knowledge of human perception of color be used in photography?

How does the human vision system perceive color, and how can/should this be taken into account when taking and post-processing photographs (both in color and in black and white)? The bit above is ...
17
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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 ...
7
votes
1answer
93 views

What affordable lights should I use for a number of large, very bright light-boxes?

I'm working on printing a number of large, very bright backlit prints. I need lots of lights that are affordable since I'll be needing quite a number of 'em. My other concern is color reproduction, ...
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 ...
3
votes
1answer
1k views

How do I extract a specific hue into a channel in Photoshop?

I have a gold handprint that I want to set up as a spot for printing. Since it was done with one substance, it should be possible to convert the image to only the gold spot and black. I've searched ...
3
votes
7answers
528 views

Which camera has low shutter latency and good color accuracy?

I'm an artist, but I'm new to photo. I've found that the most important things for me are: Capturing a moment without any thought Getting accurate color Capturing the moment usually requires a ...
14
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3answers
2k views

Are RGB numeric values equal to CMYK percentages?

are RGB numeric values equal to CMYK percentages?
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 ...
4
votes
2answers
252 views

Why do the noon skies look nasty in these photos, and what can I do about it?

Posted for evaluation. Why is the sky so nasty? These images where shot at high noon with a polarizer. Is there a way to "clean up" the sky. Keep in mind also these have already been processed in post ...
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 ...
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 ...
24
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3answers
2k views

What is the meaning of “white balance”?

I would like to understand the term white balance. My camera has settings for white balance with the following options: Auto white balance Daylight Cloudy Shade Flash Incandescent lights White set1 ...
11
votes
5answers
2k views

Recommended clothing colours for portraits?

What colour of clothing do you recommend your clients wear during a portrait photo session? I recently completed an urban photo shoot where the colour of my client's dress gave an odd cast to some of ...
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 ...
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 ...