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New Tools for neutrality

New Here ,
Oct 02, 2020

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Hello,

I’m working on catalogs which features object pictures on a grey gradient CMYK background. Our background generally aren’t neutral and have a dominant color.
Id like to implement a tool into my information panel which would allow me to know if the spot where I put my color picker is neutral or has a cyan, magenta or yellow tone. Also maybe try to find a function allowing me to neutralize an entire layer (I sometimes receive pictures where there’s magenta on the right and cyan on the left...)
When I say “neutral” I mean CMYK neutral background, not converted into grey scale.

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New Tools for neutrality

New Here ,
Oct 02, 2020

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Hello,

I’m working on catalogs which features object pictures on a grey gradient CMYK background. Our background generally aren’t neutral and have a dominant color.
Id like to implement a tool into my information panel which would allow me to know if the spot where I put my color picker is neutral or has a cyan, magenta or yellow tone. Also maybe try to find a function allowing me to neutralize an entire layer (I sometimes receive pictures where there’s magenta on the right and cyan on the left...)
When I say “neutral” I mean CMYK neutral background, not converted into grey scale.

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Feature request

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132

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Oct 02, 2020 0
LEGEND ,
Oct 02, 2020

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»Id like to implement a tool into my information panel which would allow me to know if the spot where I put my color picker is neutral or has a cyan, magenta or yellow tone.«

See the Info Panel’s Panel Options and set the Modes accordingly. 

Screenshot 2020-10-02 at 11.55.36.png

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Oct 02, 2020 0
New Here ,
Oct 02, 2020

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Thanks but I don't see the connection

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Oct 02, 2020 0
New Here ,
Oct 02, 2020

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anyway i need the CMYK and total inking values

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Oct 02, 2020 0
LEGEND ,
Oct 02, 2020

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»Also maybe try to find a function allowing me to neutralize an entire layer«

Have you tried Hue/Saturation Layers? 

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Oct 02, 2020 0
New Here ,
Oct 02, 2020

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Thank you, actually I use the desaturation but if I completely desaturate it becomes magenta, so I have to find the right middle, it's tedious.

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Oct 02, 2020 0
Adobe Community Professional ,
Oct 02, 2020

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CMYK gray isn't neutral in the sense that C=M=Y. Inks have different densities, so that there is usually a higher percentage of cyan ink (and a little lower percentage of yellow).

 

Furthermore, the ratio isn't exactly the same in different CMYK profiles (because they correspond to different ink specs). So a formula would have to be profile-specific.

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Oct 02, 2020 1
LEGEND ,
Oct 02, 2020

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Setting the Color Sampler Readouts to Lab (or maybe HSB) might provide a food clue about how »neutral« a color is. 

Screenshot 2020-10-02 at 12.27.35.png

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Adobe Community Professional ,
Oct 02, 2020

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Yes. Lab readout will work.

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Oct 02, 2020 1
New Here ,
Oct 02, 2020

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If in a new CMYK file, fill in I use values ​​T = 0 S = 0 L = x photoshop will fill me the layer with a neutral gray with variable values ​​depending on X.
I cannot memorize all CMYK values ​​that are neutral gray.
Once again I am not trying to get around this problem but it seems to me that there is a lack of a tool allowing to know where we are at the level of neutrality that was the goal of my post.
All the more so in times of Covit / telework where people do not always have access to a calibrated screen to work.
How to send the info back to the developers to claim a missing function?
 

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Oct 02, 2020 0
New Here ,
Oct 02, 2020

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I know how to make a background neutral but it is painful on a daily basis.
I wanted the implementation of a function or tool that I miss in my job, maybe I didn't post in the right place.

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Oct 02, 2020 0
LEGEND ,
Oct 03, 2020

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»maybe I didn't post in the right place.«

The place for Photoshop Feature Requests is 

Photoshop Family

But frankly I don’t think you have exhausted existing possibilities. 

And why are you working in CMYK anyway? Is the imagery illustrative or photographic? 

 

»I cannot memorize all CMYK values ​​that are neutral gray.«

What are you talking about memorizing values? 

If a and b in a Lab readout are 0 (or thereabouts) then the color is neutral. 

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Oct 03, 2020 0