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Old 21 April 2015, 16:26   #28
TCH
Newbie Amiga programmer

 
Join Date: Jun 2012
Location: Front of my A500+
Age: 31
Posts: 108
Quote:
Originally Posted by pandy71 View Post
"Normal" pictures have nonlinear RGB space (as such any operations on non linear space will give unavoidable errors)
Perhaps. But until this point, i had no problem with normal pictures. Whenever problems will occur, i will rethink my approach.
Quote:
Originally Posted by pandy71 View Post
Ok, perhaps same as in HAM case some hybrid - tricky approach is required.
Currently, i trying with pre intensify/reduce the gamma correction/brightness of the picture before EHB quantizing. Strangely i got the best results with 1.1 gamma, all other methods said thursday. With pre-intensified gamma at ~1.1 i got a slight smoother picture, but nothing earthshaking.
Quote:
Originally Posted by pandy71 View Post
Ok, i have different impression but ok.
Maybe you got a different source than me.
Quote:
Originally Posted by pandy71 View Post
Once again Thanks for a new software.
You are welcome.

Edit: Nope, on small resolution the 1.1 gamma produced much worse picture. So, not brightness, nor gamma are good for pre-transform before EHB quantization.

Last edited by TCH; 21 April 2015 at 16:35. Reason: new results
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