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Old 8th August 2016, 07:38   #18  |  Link
b2kguga
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Join Date: Jul 2016
Posts: 21
Shekh, i was trying your vdub version with the Lab plugin. The Lab plugin was made by Neiromaster, but If you have the source it can be improved a little bit more. For example, it can use a limitation of Hue (from CieLCH) to check for difference ranges. For example, whenever you set a image to use more blue or red etc, it will increase the amount of smooth "spots" of Blue/Yellow/Red/Green. The "spots" can be removed simply making check for a Hue difference range.
Like this: when you are increasing the Blueish tone (a and b factors from Lab) , whenever the pixel Hue varies in, letīs say...10 degrees (user can define the range), the conversion from RGB to Lab stops at that pixel. Or...instead stopping the conversion, the Hue can be fixed inside that range and all that will change is the Luma or the a/b factors without changing the hue anymore.
This probably will remove the "spots" that appears when you increase too much the tone from yellow/blue/red/green used in Lab colorspaces.

Last edited by b2kguga; 8th August 2016 at 07:51.
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