ppc_image_reduce, a C code which reduces the size of an image stored in PGM or PBM format, by applying a Haar transform and removing modes of low importance, from Rouben Rostamian's "Programming Projects in C";
While the reduction of PGM images seems to work properly, the PPM image reduction fails, for some reason. The bug has not been tracked down yet!
The information on this web page is distributed under the MIT license.
ppc_image_reduce is available in a C version.
ppc_haar, a C code which applies forward and backward Haar transforms to vectors and matrices, from Rouben Rostamian's "Programming Projects in C";
ppc_image_analysis, a C code which analyzes and manipulates an image stored in PGM or PBM format, from Rouben Rostamian's "Programming Projects in C";
ppc_xmalloc, a library which manages the allocation of memory, from Rouben Rostamian's "Programming Projects in C";