localcolorcorrection.c File Reference

Local Color Correction algorithm. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "io_png/io_png.h"

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Functions
unsigned char	ScaleAndRound (float X)
void	input2RGB (unsigned char input, float RR, float GG, float *BB, int size)
void	RGB2output (float R, float G, float B, unsigned char output, int size)
int	main (int argc, const char **argv)
	main function call
Variables
unsigned char *	Im
unsigned char *	Imi
long	Dxy
int	Dx
int	Dy

Detailed Description

Local Color Correction algorithm.

Main executable file.

Parameters:

input image output image radius (default: 40), radius of Gaussian kernel option (default: 1), processing option (1, separate processing of R, G and B channels; 2, processing of intensity channel; 3, processing of luma channel in YPbPr color space; 4, processing of luma channel in HSL color space )

Read/write operations (png format) make use of io_png.c and io_png.h, by Nicolas Limare

Conversion operations between color spaces, make use colorspace library, by Pascal Getreuer