source/decimate.c File Reference

#include "decimate.h"
#include <stdlib.h>

Go to the source code of this file.

Functions
int	_iqa_decimate (float *img, int w, int h, int factor, const struct _kernel *k, float *result, int *rw, int *rh)
	Downsamples (decimates) an image.

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Function Documentation

int _iqa_decimate	(	float *	img,
		int	w,
		int	h,
		int	factor,
		const struct _kernel *	k,
		float *	result,
		int *	rw,
		int *	rh
	)

Downsamples (decimates) an image.

Parameters:

img	Image to modify
w	Image width
h	Image height
factor	Decimation factor
k	The kernel to apply (e.g. low-pass filter). Can be 0.
result	Buffer to hold the resulting image (w/factor*h/factor). If 0, the result will be written to the original image buffer.
rw	Optional. The width of the resulting image will be stored here.
rh	Optional. The height of the resulting image will be stored here.

Returns:

0 on success.

Definition at line 37 of file decimate.c.