Alley in Pisa, Italy

by Lars Kotthoff

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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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478 views

How to figure out whether the colours in a photo are warm or cool, and how does that matter?

On 1x some people have said that this picture has warm colours. I wish to understand what qualifies to be a warm colour, cool colour, and how does that matter? Warm means bright? and Cool means ...
29
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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 ...
3
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3answers
394 views

How can this lighting/color effect be done?

The foreground is color (although very low contrast), and the background appears to be B&W. Can this be done during shoting, or only during post-processing? I notice there is a greenish/bluish ...
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3answers
487 views

How to reproduce this dark-toned color effect?

What technique is used in this image to produce such colors? Is it just saturation and hue adjustment?
2
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1answer
212 views

How to boost tones preserving highlights?

I took this picture with my not so expensive camera phone. I made some post processing most of all to get vintage colors. The final result is this one The sky near the sea is blown out. This is ...
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votes
2answers
1k views

Do lenses affect color fidelity?

It seems to me that my costlier (Tamron 90 f/2.8 macro) lens gives better colors than my cheap Canon 18-55 IS kit lens. So does lens matter for color quality? What physical processes are involved in ...
2
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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 ...
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votes
3answers
789 views

How to make the colors of an image taken under diffuse midday light more lively?

I took some macro shots of flowers in a greenhouse. I did it around midday in January, and the ceiling of the greenhouse was matted glass, so I got very diffuse light. Even in images which are exposed ...
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2answers
312 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?
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votes
2answers
201 views

Where do these “redshifts” and “blueshifts” come from?

I make many product photos for the company I work for. For this I use Canon 400D with two external flash devices Walimex CY-600K. I've noticed an interesting effect on many of the photos I take with ...
9
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3answers
802 views

How does color affect auto-focus?

I've noticed that the subject color seems to affect auto-focus, and am curious if I am just imagining this, or if there is a reason for it. For instance, I shoot a lot of figure skaters, and ...
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2answers
278 views

How is this lighting and colouring effect achieved?

A few days ago, I saw this picture linked here on 500px and was wondering how the coloring technique is called. On a first glance, it looks like a high key shot, but it is unusual as it has no light ...
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2answers
257 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 ...
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4answers
2k 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 ...
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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 ...
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3answers
26k views

How can I create a soft pastel tones preset in Lightroom?

Could anyone give any recommendations or links that may help me make my photos in soft, pastel tones, like photos from these albums: http://air-we-inspire.livejournal.com/102576.html ...
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1answer
669 views

Why are colors different between RAW and JPEG when both are viewed in Lightroom?

Yesterday I was shooting images of trees that were wrapped in the beautiful baby lights that stores put in holidays. I noticed, when I went back home and checked my photos, that there is a slight ...
5
votes
2answers
433 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 ...
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1answer
1k views

How is the YCbCr encoding useful for representing grayscale images?

I am curious about the YCbCr color model for representing grayscale images. Can someone provide a detailed explanation of how image data is encoded as YCbCr, when it might be used over another ...
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8answers
7k 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 ?
6
votes
2answers
854 views

How can I achieve the dramatic sky as seen in these sample images?

Below are some samples. Is this effect made with an optical filter or is it edited during post processing? In either case, what it is called? http://jpgmag.com/photos/3181099 ...
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1answer
340 views

Why are the red light and its hood in my image colored different than they were in reality?

I took this image in a train station with shutter speed 1/8 second and AV mode, the aperture was chosen to be 4.5. The problem in the colors of the spotlight in the right corner of the image. In the ...
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7answers
539 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 ...
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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, ...
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3answers
625 views

When shooting a scene with a LCD or Plasma TV in it, is there a way to avoid a blueish tint on the screen?

I've been searching but I can't find relevant info. I'm actually filming, but figured the problem's still there in photography. I also don't know where else to ask. Does anyone know what can be done? ...
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4answers
3k 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. ...
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0answers
123 views

How can I decide to make photo B&W or leave it color? [duplicate]

Possible Duplicate: When is black and white likely to enhance an image? Are there any common photography rules to make black and white photos based on composition or other things?
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2answers
939 views

How can a sunset photo have pink and purple colors?

I was browsing, and found this gem, which has distinct hues of pink and purple. I am curious so as to how the photo has shades that it has. Was it edited later? Do such colors really occur while the ...
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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 ...
9
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4answers
3k 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 ...
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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 ...
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2answers
633 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 ...
12
votes
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 ...
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votes
5answers
8k 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 ...
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vote
2answers
631 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, ...
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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 ...
3
votes
1answer
740 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 ...
11
votes
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
votes
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
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2answers
2k 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 ...
12
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3answers
636 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) ...
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votes
2answers
848 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 ...
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2answers
844 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
3k 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 ...
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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 ...
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votes
1answer
395 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 ...
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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 ...
3
votes
2answers
614 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 ...