Questions tagged [color]

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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50 views

Can you match color levels of semi-overlapping layers in GIMP using a single pixel color?

I am putting together fluorescent images taken on a microscope. I have taken sequential images that overlap for anywhere between 20 - 50 pixels at the edges. I have set up grids so that I have perfect ...
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What's the point of scanning family photos at a higher resolution for later enlargement other than restoration?

I have a question about an answer on Genealogy & Family History Stack Exchange. According to this blog post found at the Library of Congress: You can scan [photos] at a higher resolution [I'm ...
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sRGB mode a necessary for monitors?

I was wondering. If there's no dedicated sRGB mode on a monitor, can you still calibrate it to an sRGB color gamut for photo and video color grading? I am referring to the Cooler Master GM34CW with 95%...
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Nikon D800 color cast

I take pictures with my Nikon D3 for almost a decade now. I recently got a used D800 and I dont like how the colors turn out on some images. They seem to have a slight color cast. Look at the ...
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Can a horse look purple (ish)?

It looks a bit Photoshoppy to me, but I am willing to give the OP the benefit of the doubt. According to the original post, (here) this horse is a some mutated roan. I would like to know if this ...
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Why does flash make a brass subject look grey?

I wanted to take a photo of some items I'd turned on a lathe, and lined them up. Photo was taken with an older samsung android phone, so absolutely nothing fancy. There are no filters enabled, the ...
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MacBook Pro - Which color profile is more realistic and like life?

On the MacBook Pro, which color profile is more realistic and life like? Color LCD or SMPTE RP 431-2-2007 DCI (P3)?
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203 views

Why do typical imaging sensor colour filter spectral responses differ so much from the human eye spectral response?

It is commonly stated that the spectral response of RGB colour imaging sensors (CIS) is chosen to match that of the human eye. While this is roughly true, when you examine this claim in detail it is ...
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587 views

Is it advisable to edit photos during the night?

I recently found myself to not have much time editing photos during the day (which I usually do), so I considered doing it during the night. However, I am not quite sure if it should be done. Here are ...
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Reduced color gamut on outdoor video with Canon EOS RP

I am trying a new DSLR camera for shooting video. I set white balance to automatic and the result seems to have a poor color gamut compared to either a Nikon DSLR shot outside or to the Canon shot ...
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What distinguishes natural photos from filtered ones (color theory)?

I have implemented a filter which makes use of RGB color space plus some transformation functions. This filter can be seen here in action. The natural image is obvious to me. // Natural Image // ...
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Why do my colours completely fade when I merge layers or export to jpeg?

I’ve been working on a colourful image but when I export it to jpeg, the colours are almost gone. Sure, I understand saving in jpeg can lead to change in colour but.. this is the most massive loss of ...
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Does light hardness affect color saturation?

I've read in couple of sources that level of hardness of light affects color saturation somehow - harder the light more saturated colors are. Is this actually true or not?
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Is there a way to equalize all the colors' brightness in Photoshop?

I want to know if there's a way to equalize the brightness of all the colors of an image. Like, I have a color image, I want to make its all colors' brightnesses the same value. Ex - H-43 S-73 B-101 ...
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Water behind ships much bluer than rest of ocean

On Wikipedia I have found the following image: The Japan Maritime Self-Defense Force (JMSDF) destroyer JDS Kongō (DDG 173) sails in formation with other JMSDF ships and ships assigned to the USS ...
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What causes the fake colors of stars on these pictures?

About two years ago I was at a spot with a beautiful night sky with no moon so I tried to get some pictures of the sky. I wasn't well equipped back then, I had a 35mm f1.8 lens and Nikon D50. I didn't ...
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When soft proofing, why does the image change between relative and perceptual intent when there are no colours out of gamut?

My understanding is that relative intent just clips the out of gamut colours and that perceptual intent scales (compresses?) the colours to make the out of gamut colours fit. It seems to me there is ...
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206 views

Nikon DSLR - settings to compare colors

I want to compare two lenses in terms of how they render color and contrast. To do this I want to take the exact same picture with both lenses. What settings do I have to set such that the camera does ...
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Why does the NEOWISE comet appear green on my photos?

Last night, I took some pictures of the NEOWISE comet. To my surprise, the comet has a greenish colour on all of them, e.g. this one which I've enlarged a bit: (click to show the original image) When ...
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101 views

Color regrading/correction/calibration between photos for scientific color analysis using in-image palette

This question is not quite in the same vein as artistic photography but I feel that this StackExchange is best suited to answering the question. Closest questions I could find for further reading ...
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2answers
121 views

Can an RGB channel be shifted to increase color gamut into the violet range?

TL;DR: Can additive RGB color gamuts produce the perception of light that has a shorter wavelength than the Blue component? If not, does shortening the wavelength of the shortest component of a 3-...
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282 views

low element count primes render better than high element count zooms? Which image is which?

I was told that prime lenses with low element counts have the potential to produce better colors and greater contrast than lenses with many many elements inside. I was told primes mostly 'render' ...
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149 views

film recommendation for Mamiya 645 AFD, landscapes

I've recently purchased a Mamiya 645 AFD with both 80mm ƒ/2.8 and 45mm ƒ/2.8 lenses and I'm looking forward to dipping my toes in the medium format (only the pinkies could fit in my current digital ...
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87 views

Which color model to use while editing photos? RGB? Or some else?

I want to shoot few photos using smartphone. Nature, landscapes. From smartphone I will receive JPEGs, RGB. I will trasfer them to computer. Next step I will convert them to TIFFs. Next step I will ...
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571 views

Can I use “sRGB mode” or a manufacturer's ICC-profile as a poor substitute for hardware calibration?

I have no colourimeter to perform hardware calibration, but while editing some pictures I still would like to be able to get the colours appear at least slightly truthful. I know that every monitor ...
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2answers
268 views

How do you keep white balance from killing the color?

I first noticed this when I used one push white balance in Hxr-Mc2500 sitting on a fluid head. I used a piece of A4 paper for WB reference and the lighting of the incandescent bulbs became weird white ...
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1answer
112 views

Photos for blog. Color depth more than 16,7 Million color variations (24 BitsPerPixel)

I want to use photos for blog. Nature, landscapes, fitnes. I use photos which have 16,7 Million color variations (24 BitsPerPixel) now. Is it possible to use photos which have color depth more than ...
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190 views

Is cyan brighter than red?

I'm not sure if this is on topic, but here goes. Cyan in RGB is (00, FF, FF). Red (or green or blue) is this (FF, 00, 00). So this seems like if I tell my monitor to display cyan, each pixel will ...
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1answer
114 views

Output panorama shows color shift wrt input image [Hugin]

I'm using Hugin to create a panorama of a countryside vista. I have three input images to create the panorama. The three images were shot in RAW, same camera settings for all three images, and ...
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87 views

Poor man's way to determine the color of an object with filters?

I know that expensive instruments can be used to determine the color of an object, but is there a poor man's way to determine color using filters? By "determine color" I mean know the relative ...
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1answer
306 views

What technique did Scott Mutter use in his famous photomontage “Untitled (Library)”, and what meaning does that approach help convey?

I really like this photo by Scott Mutter so I was want to know about the techniques used.
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425 views

Techniques and meaning in László Moholy-Nagy photo

This image below is called the Funkturm Berlin (Berlin Radio Tower) and is taken by László Moholy-Nagy. I have done so research but haven't found much. I was wanting to know the techniques used in ...
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Color negatives came out blank

I'm new to film photography and since I've started i have developed my film on my own using the Caffenol recipe. I have developed some film Rolls with success but this time the film came out ...
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209 views

Physical luminance and the CIE XYZ color space

In reading up on the XYZ color space you regularly come across something to the effect that "Y is taken as the luminance" or "relative luminance" whether it be for the XYZ color space or in xyY. I'm ...
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Color filters that correspond to Macbeth chart colors

I'm curious if anyone knows of a set of color filters that correspond to the standard Macbeth chart colors. In theory I should be able to use a filter with a transmission spectra curve identical to ...
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83 views

Color calibration for a far away target

I'm curious if anyone has any ideas of how to perform color calibration for very far targets (~ a mile or so). My concern is that the spd of the illuminant will be different at the camera so using a ...
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1answer
244 views

How to clean stains from 35mm color negative film? [duplicate]

I developed colour negative film for the first time yesterday and I have two problems. Firstly many of the pictures have these stains like circles on them and I cannot understand what caused them and ...
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1answer
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How to calculate the ISO of colour negative film

I've read about the process in Kodak's publication 'Basic Photographic Sensitometry Workbook'. My understanding of the process for black and white film, using their example, is that you: Find the ...
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105 views

Why some pictures appear in Facebook with three coloured bands?

This is not a single occurrence, it's also not limited to a single user. Every now and then I see pictures like this on Facebook: And this: What went wrong here? Picture cropped for privacy ...
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How exactly does “lightness” function with regards to the chromaticity diagram?

Seeing as there isn't a colourimetry stackexchange, I'm asking here where a number of useful colourimetry topics have already been posted. A number of excellent resources exist with regards to the ...
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1answer
206 views

Why does Lightroom not have a cyan-red slider for color correction?

They have color correction sliders for yellow-blue and green-magenta but not for red-cyan, unlike in Photoshop. It is really annoying to go into Photoshop when I need to make those simple adjustments -...
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441 views

How do 35mm film scanners deal with the film base color?

I want to build a jig to scan 35mm film using my digital camera (something similar to https://www.thingiverse.com/thing:2789457 or http://www.frogymandias.org/3-d/index.html). I have seen several ...
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Is there a category name for pictures where an object fills a relatively small part of the frame against a bold, single-color background?

I am a web developer whose knowledge about photography is very limited. I am trying to find keywords to search for more pictures like the following. where there is a picture of an object with pure ...
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Troubleshooting developing Portra 800

I just performed a shoot with a single roll of Portra 800, new from amazon, in date. Developed using correct times with replenished fuji C-41 chemistry in a jobo 1500 tank. I metered the film at ISO ...
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I made a profile with Colorchecker Camera Calibration software. How to import the .icm file for use in Camera Raw?

I used the Colorchecker Camera Calibration software with a TIFF photo of the Colorchecker I did with my camera. This software detected the Colorchecker successfully and produced a .icm file as output. ...
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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 ...
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Are LED Panels/Lightboxes intended for “animation” usable for photographic purposes?

LED Panels that are described as intended for animation drawing tend to be a quarter of the price of such panels that are explicitly intended for photography work (macro lighting, slide viewing and ...
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222 views

How to achieve this light faded, desaturated look?

how can I achieve this look, as seen in photos by Simone Favilli? I love the soft light effect and colours of this image but I don't know how to achieve it in Post-processing. Any suggestions? Thanks ...
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506 views

Monochrome filter effect on color film?

I recently an old Canon O1 orange filter. According to the pamphlet on the filter, it says it works on monochrome film with a filter factor of 3x. What effect would this filter give me on color film? ...
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187 views

Does photoshop really use 15 bit?

I have come across this answer https://photo.stackexchange.com/a/110776/78408 It says Adobe photosohp uses 15 bits thus Converts 16 bit images to 15 images. Is it true? Why? Which versions are ...

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