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Frequency separation issues


sdewal

New Member
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Hi Guys

I am new to photoshop and trying to learn frequency separation technique. I watched many tutorials on internet and tried to copy each and every step but things are not working form me. I think I have some settings issue somewhere. I create 2 copies of my picture and rename them as low and high. I off the high copy and apply guassian blur on the low copy. Now I on the high copy and go to image--> apply image and select the low image there. Because my images are 16 bit I select blending mode "ADD", the scale = 2 and offset = 0. Rest of the fields are empty.

Here come the tricky part. Some videos tell to check the invert box and others don't. If I don't check the invert box and click OK then the image becomes bit glossy like. Now I select the high copy and change the blend mode to linear light and the image becomes very saturated in color with deep yellow tones. It becomes like posterized. According to the videos this shouldn't happen.

Now if I do it again and check the invert box and clock ok then the image turns like high pass filter. I select the high copy again and change the blend mode to linear light and the image turns normal. Now I select the low copy to do the tonal work. I select lasso tool and select some area from picture. I go to filters and select guassian blur and change the radius. Instead of changing the smoothness of the selected section it turns the selected area darker and increases the contrast and sharpness. If I select the high copy and do the same thing then the smoothness becomes visible. According to the tutorials the low copy should be used for tonal work and the high copy should be used for texture work.

Am I doing something wrong or there is something I need to change in photoshop. I have CS6 13.0.1 X64, windows 7. The display is LG 4K resolution.


Please help me guys.

Regards
 

revnart

Power User
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Hi I'm not a retouching or FrequencySeparation specialist.. but set Apply image to:
scale 2, offset 128 and subtract blending. Then set layer to linear light.

uploadfromtaptalk1435659819674.png
 

Paul

Former Member
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Posting some sort of version of how far you have got into the project would really help.
 

sdewal

New Member
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Hi Paul

As I have explained in the first post I am stuck. If I don't check the invert box then the image becomes unusable. If I check the invert box then I face the issue of frequency itself because the low copy doesn't do gaussian blur for me. The high copy does that. I stop at that point.


Thanks
 

revnart

Power User
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I've tested on 16bit images and it worked, that's why that was my first guess. :) But I can be missing something because lack of knowledge with FreqSep. :)

Sent from my App Runtime for Chrome using Tapatalk
 

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