Questions tagged [color-management]

The process of managing color settings on various viewing/output devices (computer monitors, projectors, printers, etc) so that colors appear the same regardless of how an image is viewed.

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105 views

Capturing then printing color-accurate images

I want to take photos of a few surfaces (wood floors, bricks, etc.) then print them, matching the colors of the actual object (in whatever the lighting conditions are at the moment) as closely as I am ...
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1answer
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What are these focal lengths for Sigma Nikon Optimization Pro for 14-70mm F2.8 OS HSM A017?

I've been calibrating my Sigma lenses using the Sigma Optimization Pro application and the doc hub, for instance, the 24-70mm F2.8 DG OS HSM A017 Nikon version. In order to do so, I take photos at ...
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106 views

why my image (exported as sRGB, 8bit) looks color washed and pixeled after instagram upload

I uploaded this images on Instagram using color space sRGB, 8 bit (as recommended) . Size: long edge: 2160 px. The original images wasn't this color pixaleted (notice faint magenta bar running from ...
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DigiKam vs. LibRaw command Output Discrepancy

Recently I have stumbled upon digiKam software which internally uses LibRaw library as a raw conversion engine. I have tried to convert one of the images I have using digiKam with all conversion ...
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1answer
182 views

How can I compare histograms between a digital image and it’s print

I want to compare color histograms between a digital photo and its physically printed in cloth (like a T-shirt) version. The process is simple: Printing a digital image (with good resolution) in a T-...
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1answer
267 views

How to emulate sRGB on wider gamut or buy only sRGB monitor?

My Dell U2520D display shows magenta cast on a standard mode on both windows and mac. I think I am aware now that even if I use RGB ICC profile with this wider gamut display it will still look ...
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1answer
99 views

Why does a green product that's been color corrected (with color checker passport) look blue and how do I fix it?

I'm a freelancer hired to edit product photos. The company mailed the products to me so that I can ensure that the color of the products match what they look like in real life. I do have some ...
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49 views

Why is the contrast calculated in i1Profiler so low?

I just received a Dell S3221QS 32" Monitor with a VA panel. I used i1 Display Pro and i1Profiler 3.x to calibrate the monitor. At the end the calculated contrast ratio is just 256:1, which is ...
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1answer
197 views

What Conversion Engine works best in Photoshop? ACE or ICM

Adobe ACE v Microsoft ICM: Bakeoff Adobe's Windows Photoshop offers two conversion engines for converting colors. These are used when converting between different RGB colorspaces as well as doing ...
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Pictures uploaded to Facebook display wrong colors, but only in Firefox

I've noticed on several occasions that the colors of my photos are slightly off when uploaded to Facebook. But I noticed this apparently is only in Firefox. Take this photo, for example: https://www....
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373 views

Converting from sRGB to ProPhoto & vice versa on Photoshop (with a 120% sRGB screen)

This is just academic: I want to find a cyclical way to convert from sRGB to ProPhoto and vice-versa on Photoshop. I notice that no matter that the images from Is Your Browser Color-Managed? looks ...
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113 views

How to use my display calibration settings with photoshop

I have a problem if I use my DisplayCal profile with photoshop, and save an image like a png or jpg the image turns out darker when I view it in another program but looks fine in photoshop before I ...
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Effect of assigning an ICC color profile at different stages

What is the difference between applying/assigning an ICC color profile to an image for color correction During opening and processing the raw image in some studio software (e.g. Lightroom, CaptureOne)...
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1answer
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How to create custom reference data for ColorChecker Charts using X-Rite ColorChecker Camera Calibration?

I am using ColorChecker Camera Calibration v2.0 in combination with Colorchecker Digital SG achieving the most colourimetric accurate colours. At the moment the software is using the values given by ...
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1answer
266 views

Why do preview images in camera LCDs, phone screens, and editing applications appear darker, or with more saturated colors? [duplicate]

For many years now, I've noticed that cameras of different sorts and image editing program display a preview image of different colors from the final image, while it's loading the final image. I've ...
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1answer
46 views

Color profiles in export as and automated batch export are different

Issue I'm trying to export images in batch with a color profile but they aren't exporting with the same color profiles. While this looks OK in most places on Instagram for example the colors are ...
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3answers
130 views

Color Calibrating - the display? or the output? Key Basic Issues - help!

I have the Xrite i1Profiler and there are several things I need to understand. 1.) Calibration seems to mean running the software and creating a profile. The profile seems to be located on the ...
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1answer
66 views

ICC Calibration (Profile) for more bright black on LED screen

I have an IPS LED screen and I don't like its black because it is very dark. I know it's a bit strange (is it?) but I want the black to be more bright (that means grey) without white becoming darker. ...
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2answers
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Profiling a scanner: What does the Media White Point stand for in an ICC profile?

I want to profile my scanner using an IT8.7/2 chart. Analyzing the ICC profile I generated it shows that the Media White Point is close to D65 illuminant (6501K). What does this mean? Does it mean ...
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1answer
38 views

Why don't the values given by Argyll's scanin match what I see in darktable or Gimp

I'm trying to do a variation of the color profiling flow given in this post about color profiling I take an image of a Wolf Faust it8 target, turn off a bunch of the default processing that darktable ...
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1k views

6500k calibrated monittor - what are the RGB values to represent a given monochromatic radiation of known wavelength?

Say I've calibrated a monitor to the standard 6500k 2.2 gamma, and the color space is sRGB. On this monitor, I would like to have a reasonably accurate representation of a monochromatic radiation (...
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3answers
144 views

Can't get the right colors when shooting art. Looks pale even with ColorChecker Passport

I am trying to shoot my art, and colors seem off, more specifically pale. I am aware I can adjust settings manually since I shoot in RAW, but I feel like if I get exposure and white balance and ...
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1answer
204 views

Differences between DCP and ICC profiles?

I am trying to understand what is the best colour profile that I can generate from a ColorChecker for calibrating my camera. I always used ICC colour profile standard but now I saw also DCP colour ...
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2answers
117 views

Where can I find color data for X-Rite ColorChecker Classic?

I would like to use the grey patches row of my X-Rite ColorChecker Classic to set correct exposure in post processing, but I can't seem to find the data for the chart on X-Rite website or elsewhere. ...
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1answer
111 views

Look Up Tables in Colour Science

I am looking into the colour science regarding lookup tables, and their application to images. I am trying to find out what the values within the LUT actually represent. LUT_3D_SIZE 33 0.000000 0....
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2answers
329 views

Should I adjust the settings of a monitor before calibration?

I have previously only used the build-in monitors of my MacBook or iMac, which I have calibrated with a ColorMunki Display. They only had one parameter, brightness, for which the calibration software ...
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3answers
125 views

color spaces and monitors

What happens when retouch an AdobeRGB image in a monitor that only displays sRGB? I normally work on AdobeRGB mode and on a monitor that displays this color space. However, I am going to be using an ...
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0answers
46 views

The proper use of RezChecker color

I am not sure how much my question is relavent to this forum but I guess it must be the right place. Basically my question to you is, if you have any prior knowledge about color checkers and color ...
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1answer
135 views

How can I get both monitors to look the same?

I have used Acer V247Ybip for about a year and decided to buy Acer V247bi to use for second monitor, which is basically the same monitor, but without the Display Port. The problem is that basically ...
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1answer
385 views

How to use X-Rite ColorChecker with Sony a7R IV?

I purchased an X-Rite ColorChecker to attempt to get better white balance for my camera (a7R IV). My first attempt at using it has yielded wildly questionable results. Process below. All files ...
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2answers
3k views

Why the photos edited on lightroom desktop looks different in mobile phone?

I am using Adobe Lightroom CC to edit photos on my computer. When I edit them on computer and export them it looks good on my computer. But, when I copy same images on mobile device then they looks ...
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2answers
842 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 ...
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1answer
694 views

Windows 10 v1909 Loads Laptop Monitor's ICC Profile For External Monitor

I have a brand new Sager NP6855 Windows 10 Pro v1909 laptop with an Intel i7-9750H CPU that has integrated Intel UHD 630 Graphics. An external Viewsoinic 1920 x 1080 monitor is connected via HDMI to ...
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2k views

Level adjusting images to hide internal features/detailing

For any given image, adjusting its levels to increase contrast as in images below, a lot of internal details get darkened and are not noticeable, like the texture of the tree on right, etc. However ...
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2answers
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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2answers
178 views

Calibrating a lens...is auto focus less reliable when zoomed?

So, I'm calibrating my lenses to a new camera body, a 5D Mark IV. When calibrating my 70-200 ƒ2.8 (version 1), I found that the focus was accurate at 70mm. However, when I calibrated it at the 200mm ...
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2answers
90 views

How to process images to be optimally robust on non-calibrated displays and media?

Getting the most out of an image to be printed on a calibrated printer, or displayed on a calibrated and high quality monitor, has been amply discussed. Such processing also seems a good way to ...
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1answer
2k views

How do I create and load a color profile with DisplayCal on Windows?

I have monitors that look different and I don't know how to make them look the same. So I buy a spider2 because it is cheap and I want to make sure it work before I spend a lot of money. The seller ...
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1answer
178 views

What is the normal process for a photographer to get their photo into CMYK format?

I am an aspiring photographer. I take pictures that I want printed in CMYK for a magazine. Do I have to take the photo, and then painfully convert the rgb photo to cmyk? Is there no out of the box ...
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3answers
200 views

Is there a reason not to remove colour profiles from images on the web?

I have started using Jeffrey Friedl's lightroom plugin for publishing to Flickr in conjunction with the metadata wrangler which offers an option to remove the ICC color profile. However there is a ...
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2answers
515 views

Why does GIMP ask me to switch between sRGB color profiles?

I'm scanning pictures with an Epson Perfection V600 and editing in GIMP. When I open these pictures, I get a dialog asking if I want to convert the color profile from "EPSON sRGB" to "GIMP built-in ...
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2answers
605 views

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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3answers
480 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 ...
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2answers
2k views

Xrite Colorchecker color specifications and 18% reflectance gray card

I have a Xrite Colorchecker Classic: Where to find the color specifications for each square (either in CMJN or any other format)? Let's say I want to develop my own open-source color correction ...
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2answers
287 views

Gray values on QP card 201

I have a colour standard card QP 201 which I am hoping to use to calibrate gray values in some scientific photos. For this purpose I will need to know the percentage gray values of the gray squares (e....
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3answers
328 views

How to choose a color calibration device?

I'm tired of my monitors and phones all looking different. I tried following instructions at Lagom LCD monitor test pages, but they still look different. So, I think I need to buy something to help ...
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1answer
82 views

White Point recommendation for outputing to print and website for viewing

How to set a white point for customers to both view online and then order prints directly from the website?
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517 views

Same sRGB image different colors in Lightroom, Windows, Web and Android

recently I've started having troubles with my image colors. The same image (sRGB) looks different in Lightroom, Windows, and Android. I import my photos that were shot on Fujifilm X-T3 in raw (.RAF) ...
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2answers
96 views

How did color spaces get their names?

Why RGB instead of BGR, GBR or perhaps GRB? Why CMYK instead of YMCK, KMCY, CKMY, YKMC and etc?
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5answers
762 views

Why does the green gain affect the blue and red values on a CMOS sensor with individual gain control?

I'm taking pictures of little surfaces (5 x 5 Millimeters) in an experimental setup with an ids camera that contains a cmos sensor. Afterwards the pictures are split into the 3 color channels (red, ...

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