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Problems with CMYK images viewing, Indesign 2020 (15.1.2)

Explorer ,
Nov 15, 2020

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Hello everybody.

 

Is there anything known about the fact that Indesign 2020 - when using GPU - does not display images in CMYK (for example PSD or TIFF pictures in CMYK), but always only in over satureted RGB colors (even if I select transparent filling space CMYK)?

 

It only works properly when I switch to CPU usage (.. and when I give them out as pdf it's all ok).

 

My setting:
I Mac 5K / late 2019 / Radeon Pro 580X
Catalina Mac OS 10.15.7

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Problems with CMYK images viewing, Indesign 2020 (15.1.2)

Explorer ,
Nov 15, 2020

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Hello everybody.

 

Is there anything known about the fact that Indesign 2020 - when using GPU - does not display images in CMYK (for example PSD or TIFF pictures in CMYK), but always only in over satureted RGB colors (even if I select transparent filling space CMYK)?

 

It only works properly when I switch to CPU usage (.. and when I give them out as pdf it's all ok).

 

My setting:
I Mac 5K / late 2019 / Radeon Pro 580X
Catalina Mac OS 10.15.7

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Nov 15, 2020 0
Explorer ,
Nov 18, 2020

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Would be nice if somebody can tell me anything about it. How it works at your? I can get a CMYK preview of the images with the CPU in fact - but not with the GPU ...

 

It's a bit anoying. Working with CPU is much slower, especially with big pictures....

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Nov 18, 2020 0
Adobe Community Professional ,
Nov 18, 2020

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Nov 18, 2020 1
Explorer ,
Nov 18, 2020

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Thank you for this hint!

 

I will post my issue there.

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Nov 18, 2020 0
Adobe Community Professional ,
Nov 18, 2020

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Just for a good understanding: you never can show images in/as CMYK as your display is of course RGB. So it is always an RGB rendering on screen.
Now you see a different RGB rendering when using GPU. Could be transparency in combination with a missing or wrong profile for the image. That said: in a modern workflow for the last 15 years you keep your images in RGB anyway and let Colour Management (either InDesign's or the printer's RIP) do the conversion on ouput. In short: you should adopt another, modern workflow anyway...

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Nov 18, 2020 1
Explorer ,
Nov 19, 2020

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Hey Frans.

 

Yes! Thank you for your hint!

 

And of course - it is clear that you can only simulate on a monitor. But when you edit and prepare images for printing, it makes perfect sense to do that in CMYK (in Photosho) at a certain point. You have other color channels. Effects are applied differently, the printable color space looks different, etc.

 

That is why you can have this display simulated in Photoshop - and actually in Indesign too. Which also makes sense there. That's why you should work with the same color spaces and color profiles everywhere. Clear!

 

The representation simulation is not fundamentally the problem. It also works in Indesign - but unfortunately only with the CPU and not the GPU.

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Nov 19, 2020 0
Adobe Community Professional ,
Nov 19, 2020

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Ah, know I understand I think what you mean by 'simulation': the softproof rendering with a profile and that combined with GPU, right?

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Nov 19, 2020 0
Explorer ,
Nov 19, 2020

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Yes! 🙂

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Nov 19, 2020 0
Adobe Community Professional ,
Nov 18, 2020

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Hi Hubertus,

I think a similar issue came up lately here in the forum with GPU rendering: Someone scrolled through the pages of a complex document. The parts of InDesign that are doing color management did not come up with a decent screen rendering of showing a color managed page. This issue went away after turning off GPU support. Could be related to the high resolution of your monitor.

 

Regards,
Uwe Laubender

( ACP )

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Nov 18, 2020 1
Explorer ,
Nov 19, 2020

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Hey Uwe.

Yes - I have also noticed that the display does not work with the GPU only. But thanks for the hint!

Regards,

Hubertus

 

 

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Nov 19, 2020 0