Hans Petter Jansson wrote: > On Thu, 2008-10-09 at 11:08 +0200, Dierk Fröhling wrote: > >> I need to handle all pixels of an image in one tile for my new filter. >> The problem is that every pixel in the filtered image should depend on >> values from all other pixels... >> I tried out different things from other (example) filters (including the >> bounding box stuff) but my image is always split into several tiles. >> Is there any way to tell the gegl infrastructure to use the whole image >> as one tile as input pad? >> The bounding box stuff doesn't work especially because the size of >> images can differ. >> I know that this could lead to memory problems with really big images... > > I wrote a color reduction filter that does Floyd-Steinberg dithering, > where each pixel depends on all previous pixels (the bottom-right pixel > depends on the entire image). It should be among the workshop filters. > Maybe that'd be useful to look at.
This worked up to a certain size of images - but with an image with 3112 x 4200 pixels I get this message from gegl: ** Message: unable to write tile data to self: No space left on device (-1/131072 bytes written) There is enough space in my /tmp directory and all other possible working directories for gegl - 2GB of memory should be enough as well... It's not that my filter won't work at all with these big images - but only in parts. It seems that gegl splits it into tiles again... Dierk _______________________________________________ Gegl-developer mailing list [email protected] https://lists.XCF.Berkeley.EDU/mailman/listinfo/gegl-developer
