View Full Version : Pixel Manipulation plugin
vcmohan
27th September 2003, 04:09
Is there any plugin which can acess all pixels between x1, y1 to x2, y2 and modify the value as per some criteria or as an output value of some other filter? Will it be possible to call this function/filter repeatedly intra frame (with x-y values varying)as well as inter frame by animate function? If such a filter is not available will some one attempt one?
Some call like
Pixel(start y, end y,start X*fun(y), end X*fun(y), pixelvalue)
which evaluates x for each Y and alters/replaces the pixel by pixelvalue in a frame. X and Y may be interchangeable.
Richard Berg
29th September 2003, 08:14
The closest I can think of is VDub's filter factory.
waka
30th September 2003, 07:53
I wanted to do something similar not too long ago. The best I could up with was using crop inside a recursive function to subsection one frame into many smaller frames. Clever use of conditionalfilter, frameevaluate, or scriptclip could apply different filters to pixels which were now their own frame. Another recursive function with stackvertical and stackhorizontal would combine the small sections back to the original frame.
Unfortunately, this was hideously slow and not much of an option. If subsectioning only a few times was acceptable, the speed wouldn't be too bad.
A "real" way to filter individual pixels would be nice.
vcmohan
1st October 2003, 03:42
Originally posted by Richard Berg
The closest I can think of is VDub's filter factory.
Where is this filter factory plugin?
Richard Berg
1st October 2003, 07:18
http://neuron2.net/other.html
I don't think it can be loaded into Avisynth, but I've never tried.
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