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Processing to JPEG makes the image cooler

zeitrapha
When I process my images and export them to JPG, they gain more green and blue.

This is easily proved by black and white images: In Capture One one pixel has let's say R=96, G=96, B=96. Then exported to JPG, the same pixel has R=96, G=97, B=98 – even though the image was black and white!!
This effect across the entire image makes it look cooler, what I don't like.

I tried several ICC Profiles like sRGB, sRGB Color Space, Adobe RGB, Embedded Profile or Generic RGB Profile, but all exports resulted the same.

This happens only to JPG. When processed to TIFF or PSD, the colors remain the same.

I do not have this problem in Lightroom.

What's wrong with the JPG Process in Capture One?
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Comments

2 comments

Date Votes
  • Ian Wilson
    Moderator
    Top Commenter
    So to be sure, when you say you have tried various ICC profiles, I presume that you mean the ICC profile in the drop down box in the Basic tab of the Process Recipe tool.

    I have to say that yesterday I had occasion to compare an adjusted raw file and my output jpg side by side (because I was adding some keywords in the All Images session album). Out of curiosity I switched between the two of them several times to see if I could notice any difference, and I couldn't. So I would suggest that there may be some setting somewhere that is the culprit. What is the quality setting slider set to in your jpg process recipe? Are you creating the jpg using the Process command (Cmd-D, or the button on the Output tab, or the cog-wheel icon) or are you using the Export command on the file menu?

    Ian
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  • HansB
    I'd like to add 3 questions. 1st: Is it a general issue on all pixels of the image or are there other pixels where R=G=B (excluding black and white, of course)? 2nd: What are you using to compare? One possibility would be a color readout on raw and jpg in CO itself, but there are lots of other possibilities. 3rd: What's your setting for the proof profile in CO? The normal choice is 'Selected Recipe', which references to the profile chosen in the selected output recipe.


    Regards,
    Hans
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