Questions tagged [color-correction]

The process of making an image appear natural to the eye, either by changing the lighting or by changing the white balance or tint of an image after the fact.

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4answers
2k views

What are Color Profiles and where would I find information on using them properly?

I see the term "Color Profile" a lot and I have this vague idea that it helps you adjust color values based on the unique differences of both cameras, displays and printers from some ideal device. ...
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2answers
4k views

Color issue: studio images have a pink hue

I have a small home studio and use 2 x 250 flash heads, and a white vinyl background. I use a Canon 5D Mk II and generally shoot at 1/125 and f11-13. My problem is my images all have a pink hue to ...
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1answer
936 views

Match colors in Lightroom to other editing tools [duplicate]

I noticed that sometimes Lightroom develops a raw image quite differently from my Canon camera or DPP (Digital Photo Professional by Canon). Even if in 90% of the cases I'm happy with Lightroom, in ...
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5answers
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What *exactly* is white balance?

When setting a white balance configuration, we adjust the temperature and green-magenta shift to a wavelength-intensity distribution of light that correlates most closely with the actual distribution ...
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3answers
6k views

How to edit photos shot in fluorescent light

I recently shot a series of pictures (portraits and group shots) in a room with bad (fluorescent) light. I had no possibility of changing that lighting situation. Now back at home and in Lightroom I ...
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2answers
6k views

How do I use gels to make my flash match the color of the ambient light?

When using fill flash to supplement ambient light, how do you determine the flash color that will match the ambient light?
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5answers
41k views

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

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 ...
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5answers
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Why are high white balance temperatures redder when warmer objects are bluer?

I know it's dumb to ask this type of questions. But, I still don't get this. I've read the "Black body" story and know that when it's heated, it gives off colors; 'warm' colors (red→orange→yellow..) ...
11
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3answers
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Photoshop's color replacement tool changes to grey (instead of white) — how can I change a grey background to pure white?

I have a picture (File format: JPEG | Сolor depth: 24): I'm using Adobe Photoshop CC (2015.5.1). I need to change background color from grey to pure white [#FFFFFF / RGB(255, 255, 255)] Firstly, I ...
16
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8answers
15k views

How could one make a DIY Gray card for exposure/color correction?

I know that there are "gray cards" sold that help with exposure/color correction, but as I'm on a tight budget I'd like to make my own. Is this possible? Also, are there other objects (paint sample ...
6
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3answers
11k views

How to change background and maintain realistic effect?

I have like 30 different photos to process like this, but I want to know key things to maintain realistic photo by changing it's background, or maybe just modify background so it would be more ...
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3answers
5k views

Relationship between tint-temp and magenta-green-blue-amber white balance corrections?

In some tools, like Photoshop, the white balance adjustment is two sliders: tint and temperature. In many cameras however, a 2D grid is used with one axis being magenta-green, and the other blue-...
6
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1answer
6k views

I have scanned a film negative - how do I adjust the color using software?

I have scanned some film negatives (35mm) and have run into the classic orange color problem. Using the Gimp, simply inverting the color of the image (Colors->Invert) leads to a very discolored image ...
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4answers
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How do I get a consistent White Balance when shooting different color products?

I've attached an example photo. I can't seem to get the colors to be consistent across shots without struggling to manually tweak each image. What can I do to get a consistent White Balance?
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3answers
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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 ...
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2answers
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What should I do with negative values when computing sRGB colors from spectra?

This question is from the computational side of things. Maybe some of you computational photography folks can help me out. If I have a normalized CIE XYZ tristimulus vector like this one: (x, y, z) ...
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1answer
1k views

How to do color correction on multiple display devices?

Each display device renders colors in their own way. E.g. Apple's retina display renders colors in a more vivid way then an LG display device. The photo editor has to deal with this problem. I use my ...
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2answers
154 views

Color matching Product

How can i match colors from the real world to my computer monitor. I have seen tons of post talking about matching colors from picture to picture, calibrating colors on my monitor, etc. But i haven't ...
3
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1answer
1k views

Preparing/using a camera color profile using IT8 target on Linux/Darktable

In my photo processing workflow I use Darktable to handle the CR2-to-TIFF/JPEG conversion, however I frequently struggle with getting the colors right. As the first step toward correct colors I am ...
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2answers
38k views

What are the RGB values that correctly represent a 5800 K white surface on a calibrated 6500 K monitor?

Consider a high-quality monitor calibrated at the standard parameters: 6500 K, 2.2 gamma, 120 cd/m^2. Calibration is accomplished with a LaCie hardware sensor + its software, and it's quite accurate. ...
8
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4answers
6k views

Is there an automated way of color correcting using a color card in Capture One?

With the X-Rite Colorchecker Passport and their accompanying software, it's really simple to generate a DNG profile to get perfectly accurate colors in Lightroom. I want to know if there's a ...
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2answers
4k views

How can I achieve consistent skin tones in my photographs?

I've been shooting more people recently and have noticed that their skin tones are all over the map depending on the lighting situation. Are there any best practices or tips to ensure consistent and ...
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3answers
290 views

How to use a Xrite Colorchecker on a specific image to get the right colors?

I installed a setup, and I shot three photos with the same f/1.7 1/100s ISO100 condition: A.jpg (download link): Colorchecker alone B.jpg: Colorchecker + object C.jpg: the final object I'm ...
11
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1answer
468 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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3answers
2k views

How can I correctly adjust skin color in Photoshop when I have a color vision deficiency?

I have a color weakness. Is there any tool or tools that I can use by using a formula or setting to correct skin color in Photoshop?
3
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1answer
2k views

Which online color correction services give good results? [closed]

I have a photo with some problems, like washed out colors, overexposure and a bit of blurriness. I tried to fix it myself in photoshop but that didn't go very well. I also tried an online service I ...
3
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2answers
268 views

Can I color-balance a photo if I know the light source within the photo?

I took a photo without bothering about color balance, and the color temperature came out too low. In other words, the scene looked yellow to the eye, but the photo came out orangish: If I had noticed ...
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3answers
1k views

Why do photos of snow scenes turn out very blue?

I have photos that are much too blue and do not show the sunset colors at all. How can I make the pictures look like what I saw, using Corel Paint Shop Pro or other software? How can I prevent this in ...
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4answers
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How do I get 3 images to match the same colors (is it via color correction?)

I have a set of 3 images and I would like for all of them to have the same color scheme (ie. I think it's via color correction) Essentially I want the gray in each photo to look identical when I look ...
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1answer
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How do you use Kodak Color Control Patches for photo color/tone restoration?

If you look at a source like Library of Congress royalty free gallery, they go an extra step beyond just dumping a bunch of images, but provide them with Kodak Color Control Patches. This is nice, ...
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4answers
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Why are gels used for digital photography?

What is the purpose of color-adjusting light sources with gels in digital photography? Are they reserved exclusively for scenarios in which one wants different colors from different lights? I assume ...
8
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4answers
919 views

How can I make this image appear OK on an average monitor?

I have taken a portrait picture which has to look good. It does look good on the Dell 2410 I use for editing. On the garden variety Fujitsu I use as a secondary monitor, it is terrible. In the face, ...
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3answers
2k views

How do I adjust colour casts between photos taken at different times?

I have several photos of similar subjects on the same background. As they were taken outside at different times, the lighting conditions are different, and so the colours in the photos aren't ...
6
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3answers
1k 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 ...
5
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4answers
3k views

What do I need to photograph paintings with accurate color? [duplicate]

I need to photograph paintings, and also small details of paintings. Color accuracy is extremely important. Previous experience (not recent, however) with digital photography showed color divergences ...
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4answers
4k views

How to stop my camera from exaggerating differences in skin colour?

The skin colour of my subject is widely inconsistent and I am not sure what the reason for it is. To me it looks like the side of the face suffers from a colour shadow thrown by the bright hair. At ...
4
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1answer
400 views

What are the differences between color calibration cards?

The lower level ColorChecker Classic is around $59 USD, Datacolor Spyder comparable one is also around $50... meanwhile there's some DKG Tools for only $25. Current on B&H: DKG Color Spyder 24 X-...
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2answers
584 views

Image colour inconsistency between browsers, image viewers, and Photoshop

Edited in case the question wasn't clear: Question: How do I get Photoshop, IrfanView and ACDSee to display images the same as they are displayed in the latest versions of Chrome and Firefox (both of ...
3
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3answers
2k views

Is it possible to do non-destructive JPG color correction?

I would like to perform color correction on my photos before printing so that my workflow will create reproducible prints. (i.e. the lab corrects my photos and I print them again later, they may be ...
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5answers
2k views

Pictures of a dark violet flower appear light blue. Is this a lens or a technique problem?

I just got this Tamron AF 70-300mm 4-5,6 Di LD Macro 1:2 for my Canon 500D. I tested it yesterday and it works fine. Only one problem: I took pictures of a flower which is dark violet. But when I ...
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2answers
5k views

What is the math behind white-balance, and how to choose it?

Given a bad balanced RGB image (in terms of white balance), how can I choose the proper color balance that needs to be applyed (as a RGB vector where 128,128,128 is the neutral)? Same question for a ...
2
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3answers
556 views

Color temperature changing with altitude?

After 50+ years of traditional photography, I went 6 months ago for drone video&photography. Incredible what the change in perspective can do... Anyway, the question is now related with a dominant ...
2
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1answer
996 views

Colour correction/Colour balance in Post processing of Raw images

I have some RAW files (CR2 and NEF) captured using Canon & Nikon cameras. If I have to perform Colour balancing/Colour correction using Lightroom or Adobe Photoshop CS, would those tools give me ...
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2answers
203 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 ...
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4answers
799 views

Will LEDs work with a point & shoot camera for light booth digital photography?

I am planning on using multiple strips of LEDs to light up a 2 ft x 2 ft x 2 ft light booth for taking pictures of small items. LED output is Cool White 6500k. Digital camera is low cost 5 megapixel ...
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1answer
106 views

Which of these ND filtered images do you think is more accurate? (sample images included)

As a followup to my previous question; there has been interest expressed in the results of my ND filter tests. First, I should clarify that the heavy color cast shown in that post was from a single ...
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3answers
618 views

Taking pictures of rugs for online use

I work for a rug manufacturer in the same office as the photographers for our online sales. They take all photos of rugs in house. They have a tremendous amount of post processing that has to be done ...
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2answers
3k views

How to select “white point” before calibrating a monitor with Spyder3 [duplicate]

My Samsung monitor has the following Color Modes Cool 2 Cool 1 Normal Warm 1 Warm 2 With factory settings, the monitor has a minor red tint; if I switch to Cool 1, it looks normal; whites look white. ...
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3answers
293 views

Why do SLRs and DSLRs use different flash gels?

I occasionally use gels to match my flash to ambient lighting. It’s easy to find green gels (CTG) to match fluorescent lights and orange gels (CTO) to match incandescent. However, in my experience, ...
0
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2answers
227 views

Is it possible to simulate any color-only filter with curves?

In this question it was asked whether it was possible to reproduce any color-only change to an image using just curves. In my answer, I said that there were color-only changes such as conversion to ...