Re: [Gimp-developer] To consult the algorithm of photocopy filter

On Mon, 2019-07-15 at 10:57 +0800, luming shangyuekeji com wrote:
Dear all developers:
    I want to consult the algorithm details  of photocopy filter in
photocopy.c, especially the paper or description. I don't understand
the algorithm although I have read the description in photocopy.c.
    Thank you.

Note, this is a gegl fillter; i don't know if there is a specific

it looks like it does (more or less)

(1) make two blurred copies of the input with different radii
(2) use these to make a histogram to count values & determing a
(3) for each input pixel, if the corresponding blurred value is less
than the computed threshold, make it black (0 value) else make it

Liam (slave ankh)

Liam Quin - web slave for
with fabulous vintage art and fascinating texts to read.
Click here to have the slave beaten.

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]