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by Vaman Kulkarni

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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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2answers
43 views

Monitor control to set up screen brightness using Windows Color Calibration

This sounds to be a simple question but I've been strugling around for the last 2 hours and nothing yet... I need urgently to calibrate the color of my notebook (Samsung Odyssey). The procedure I'm ...
4
votes
2answers
114 views

Polarization and Rainbows

Why when I use a polarized lens if I turn it one way the rainbow disappears and the other way it brings it out better to the point you can see the second double rainbow when the naked eye can't? Is ...
1
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4answers
67 views

What readily available items can be used for color correction or reference?

Are there any easily available things I can carry with me, that I probably have already, that I could use as a rough color reference card while taking photos with a phone? I realize that most phones ...
4
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3answers
105 views

Is it possible to buy chromaticity-plot color standards? If so, how, and where?

(I hope this is the correct site to ask this; if it isn't, sincere apologies ─ and please help me find a good place to ask :-).) I'm a physicist and I've been dabbling in color theory for some time, ...
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0answers
28 views

How can I simulate lights with low Color Rendering Indices?

I have a photo taken in good lighting, and I would like to show the effects of light sources with low Color Rendering Indices (CRI). Assuming I have a complete CRI measurement of a light source (the ...
1
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1answer
50 views

How to match photos to reference photos in batch?

I have a photo of a paint tin and a list of images with reference colors for the color of the paint to be adjusted to. How can this be done? Can it be automated to be done in batch?
0
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2answers
70 views

Creating digital contact sheets [closed]

I’m in the process of creating digital contacts from my archive of rollfilm negatives. This is the setup : https://instagram.com/p/BXsx8Z0DXJ7/ Works fine with b@w but, after sweating through various ...
3
votes
2answers
61 views

How does Lightroom group colors inside the HSL panel?

I am working on a small application that would allow the same functionality as the Lightroom HSL Panel: I would like my application to behave very similarly to how Lightroom does. Therefore I grouped ...
2
votes
0answers
77 views

D5000 is changing random colors in photos

My Nikon D5000 started changing random parts of my photos to blue and purple while I was at a equestrian show. I originally suspected that the CCD had started to fail. However, I just replaced the ...
1
vote
2answers
43 views

Color Calibration on Sharp LC-32LB370U monitor

I'm having trouble trying to fix the color for my Sharp LED monitor. This has been an issue for about a year or so, and I'd still like to use it, but the wrong colors are too distracting. I've gone ...
1
vote
1answer
37 views

ICC version predates ICC datetime

On my photo, the ICC version is 2.0, however the ICC datetime is 2009. Does this mean the device can not predate 2009, and that the photo must have been taken after 2009?
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5answers
128 views

How do different colours look in Infrared Light?

I want to know how different colors (lets take VIBGYOR) appear through a infrared security camera or any camera and not thermal imagery. The type of infrared I am talking about :
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2answers
3k views

What techniques were used in this late 1970s car ad featuring a family picnicking with giraffes?

Judging from the registration number, I am guessing it is a commercial poster for/in the UK. I would like to know, any additional information: who photographed it, location, when? how it might have ...
2
votes
2answers
212 views

Why is the color mask of this 135 film dark blue-green?

In the late 1990s, I encountered an exposed cassette of 135 film. (I am not the original purchaser or user of the film.) Curious about what might be on it, I sent it to a lab for processing. I was ...
2
votes
1answer
67 views

How can I edit the colors for a specific part of an image?

I'm trying to change the color of a flower pot in a picture, as well as the leaves in the picture. I'm working with paint.net (but am open to any other free programs). Here's a little bit of the ...
48
votes
6answers
15k views

Why are Red, Green, and Blue the primary colors of light?

Colors don't have to be a mixture of red, green, and blue because visible light can be any wavelengths in the 390nm-700nm range. Do primary colors really exist in the real world? Or did we select red, ...
3
votes
3answers
99 views

Is the color reproduction of different cameras inherent to the sensor or due to software?

Often, reviewers and camera users talk about the 'Color Science' of a particular brand of digital camera, e.g. it is said that Sony digital cameras do not have good skin tones. Is this 'Color Science' ...
2
votes
2answers
145 views

How do I color correct a scan of a transparency with false colors?

I traveled to the company that took this image originally. It came from a small 2" transparency. There are a handful of them, all of which have green and pink hues. I am hoping to fix the colors. ...
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vote
3answers
121 views

Why Is There No Reference White Balance

I understand why White Balance is a necessary part of any imaging pipeline, but I don't understand why using a colorchecker on a measured sensor does not have an associated reference equation to ...
-3
votes
4answers
245 views

How to achieve a retro-elegant, faded, low-contrast look?

How can I achieve a retro-elegant, faded, low-contrast, look, as seen in photos by Samuel Elkins? Assuming this is done in Lightroom or Photoshop, I suspect photographer uses a preset because he has ...
9
votes
2answers
3k views

Is the white balance wrong in these field poppy pictures?

Yesterday I went out to take some pictures of a field of poppies next to my home. There seems to be something wrong with the color in most of the pictures. The first one of the following 3 pictures is ...
3
votes
2answers
128 views

Why does saturation drop in the shadow areas?

source: http://www.vintag.es/2012/11/ussr-in-colour-photos-1963.html My question is the following: Why does the saturation drops in the shadow areas? Has it something to do with the blue-ish sky ...
6
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3answers
307 views

How is this sort-of duotone achieved?

I can't imagine how one would achieve these colours? It looks like there's only red and gray in the image. Any idea's?
3
votes
4answers
212 views

How are the turquoise / blue sea and warm sand tones achieved in this photograph?

It seems as if the white isn't really white, but then also the lowtones seem special. I love the way everything looks so warm, but at the same time the blue is blue. Any idea how this artist achieved ...
1
vote
2answers
406 views

How to get the film or reddish type of look?

I've been trying to achieve this affect but tbh it's way too difficult. The picture I am showing could be shot on using film but I seen the photographer use a dslr. The look I am going for is the ...
5
votes
2answers
159 views

What does it mean when color channels clip?

I know about color channels. They represent the amount of color (light) in a photo. Usually in red, blue and yellow or red, blue and green. Black and white only has a greyscale channel. Setting the ...
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votes
1answer
158 views

Primary Colors of Light Other that RGB [closed]

I came across this paragraph in this website: Any three colors (or frequencies) of light that produce white light when combined with the correct intensity are called primary colors of light. ...
3
votes
4answers
155 views

Why can't I set a black object as the sample when setting custom white balance?

If I set black color as a sample in the custom white balance and then take a picture.The picture has a shade of green color. could you please tell me why?
2
votes
4answers
416 views

How to show a “real” color to someone over the internet?

I have an iPad Air with its camera. I need to show a color of my shoes to a person who will dye shoelaces for them. So I need to reliably capture and transfer this color somehow. I assume that simple ...
5
votes
5answers
2k views

Will a lens upgrade from the kit lens give me better colors on my backpacking travels?

I currently have the Nikon D5300 along with the kit lenses (18 - 55mm). I use it for my backpacking travels to make better shots than with the smartphone, but what I've noticed is that the photos are ...
0
votes
2answers
161 views

Epson SureColor P600 printing violet instead of black

The print head on my P600 tests properly, but I get what looks like violet dandruff on the underside of the brim of a black top hat. I saw a question on this site "What is my Epson SureColor P600 ...
0
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0answers
40 views

color changes - problems picking color [duplicate]

i need to change the color of red (in this example but it's usually different colors) to a few different colors (picture below). the black thingie, the metal and the stitching have to be excluded ...
15
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4answers
1k views

What colour scheme for model aircraft should I use to give a realistic black and white film photo?

I very much doubt I'm the only person here who has wanted to do this, and I'm hoping that some advice can be sought before I start on this project. I have been a big fan of model building since I was ...
2
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2answers
237 views

How are these washed but bright colors achieved?

I'm can't wrap my head around how these types of colors are achieved. http://thisisnthappiness.com/post/167656030604/closed-for-the-season-salvador-cueva Does anyone have an idea?
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vote
2answers
127 views

Color consistency across equal cameras but different lenses

I want to stitch images using equal cameras(Point Grey GS3-U3-41C6C-C) but with different lenses. One lense is a wide-angle lense (Sunex DSL318B-650-F2.4) and the other is a fish-eye lens (Fujinon ...
1
vote
2answers
105 views

Why do color channels from a digital camera respond slightly to lights of other colors?

I'm trying high speed dark room photography with Logitec c270 simple CMOS web camera. I flash red or blue light and capture frames. Then I separate it to channels in photoshop. There, I can see all ...
0
votes
1answer
103 views

Lightroom Preset/settings for dominant blue/orange-like look

Do you know where can I get a Lightroom preset to be able to create an effect of two-color dominant orange-blue-like look? I mean something like this: https://www.instagram.com/p/BXLzUWIFzjy/ or ...
28
votes
3answers
5k views

What's it called when white objects or white backgrounds become blue in photographs?

Sometimes when I take photos with my smartphone, the white objects or the white backgrounds become blue. Most of the time it happens when the location is a bit shadowed, but sometimes it happens in ...
0
votes
1answer
134 views

How can I remove the blueish color tone from some pixels?

How can I remove the blueish color tone from the right half of the dog that was in a diffuse light / shadow in Photoshop? I've tried the color replacement brush and to select the colors but without ...
3
votes
4answers
423 views

How to remove vignetting and color cast from wide angle lens?

After shooting several images with the Samyang 12mm f/2 for mirrorless APS-C, I noticed it produces a quite strong color cast. It looks like green vignetting. As far as I know, this isn't uncommon for ...
2
votes
3answers
119 views

Calculating cost of Inks

I am working on an app in which I need to estimate the amount of ink used to print something and corresponding cost. I am not sure if this is the right place to ask this question. If not, please point ...
3
votes
3answers
70 views

Using an uncoated Pantone Swatch Booklet as a Color Reference for photos/video?

I was wondering if this would work as opposed to something like an X-Rite ColorChecker. Would this be helpful in color correcting? Is there some method to matching between CMYK and RGB formats in ...
0
votes
1answer
247 views

RAW Image Resolution from Mono vs RGB bayered CMOS sensors [closed]

What is the resolution difference between a RAW image taken with a monochrome sensor vs a RAW image taken with a sensor with a Color Filter Array? With a color sensor, I know that sensitivity and QE ...
3
votes
3answers
263 views

Why does histogram not show color of object more strongly?

I have a Sekonic C700 spectrometer. I notice that when I makes a measurement even of a colored test card illuminated by an incandescent light, it still looks like the normal tungsten curve: It looks ...
-4
votes
1answer
91 views

Which phone color to cater to?

As many of you know the color on most Samsung phones are pretty saturated, and the colors on iPhones are pretty flat. As I own a Samsung S7 I've been catering to that for Instagram photos but after ...
0
votes
3answers
129 views

How is photography done for output to high-quality spot color presses?

High-quality printing processes are capable of generating a much greater dynamic range in color, saturation, specularity and other characteristics than is possible for a camera to capture. For ...
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vote
1answer
263 views

Why are saturation and color very different when I open my JPEG photos in different programs?

I just noticed that my photos are displayed all "greyed" when I open them in some software, but appear correctly in other. For example Firefox or paint.net display the wrong colors, but with the ...
0
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3answers
334 views

Does the d7000 have a problem with green tones?

I recently went on a two week long trip to Italy, where I had the opportunity to extensively use a nikon d7000 (along with a 18-105mm travel lens). Now, after finishing sorting and development of the ...
4
votes
2answers
317 views

What's the difference between shooting in daylight and at sunset?

What's the difference of light between taking photos near sunset or during midday sunshine if there is any? Why would you go for a photo at sunset instead of a daylight photo when the sun is higher in ...
1
vote
1answer
121 views

How to color calibrate to a set reference?

My post can be considered a follow-up question to this post. I have two sets of cameras (not DSLRs, rather industrial CMOS cameras), one a reference set and one a new set, and I want to calibrate ...