gauss_sample_image - Takes gaussian samples of an image


#include "i/i_convolve.h"

Example compile flags (system dependent):
   -L/home/kobus/misc/load/linux_x86_64_opteron -L/usr/lib/x86_64-linux-gnu
  -lKJB                               -lfftw3  -lgsl -lgslcblas -ljpeg  -lSVM -lstdc++                    -lpthread -lSLATEC -lg2c    -lacml -lacml_mv -lblas -lg2c      -lncursesw 

int gauss_sample_image
	KJB_image **out_ipp,
	const KJB_image *in_ip,
	int resolution,
	double sigma


This routine reduces image resolution by taking averages with Gaussian weights. The 'resolution' argument is equal to the linear shrinkage factor. For example, if resolution=3 then the output image will have one-third the number of rows and one-third the number of columns of the input image. This is also known as the decimation factor. The 'sigma' argument obviously controls the antialiasing kernel size. As a rule of thumb, the value of sigma should be around 0.5 to 1.0 times the value of resolution. If *out_ipp is NULL, then an image of the appropriate size is created, if it is the wrong size, then it is resized, and if it is the right size, the storage is recycled.


This software is not adequatedly tested. It is recomended that results are checked independantly where appropriate.


Kobus Barnard


Kobus Barnard


ow_gauss_convolve_image , gauss_convolve_image , convolve_image , x_convolve_image , y_convolve_image