44 lines
741 B
C
44 lines
741 B
C
|
/*
|
||
|
|
detect2.c
|
||
|
|
---------
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "tthimage.h"
|
||
|
|
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
/*
|
||
|
|
* Warning: this function can be very expensive in memory use
|
||
|
|
*/
|
||
|
|
int
|
||
|
|
Image_pix2ptl(Image_Desc *img, int seuil, Image_PtList *ptl)
|
||
|
|
{
|
||
|
|
int foo, val;
|
||
|
|
int x, y;
|
||
|
|
long nbre;
|
||
|
|
|
||
|
|
nbre = 0;
|
||
|
|
for (y=0; y<img->height; y++)
|
||
|
|
{
|
||
|
|
for (x=0; x<img->width; x++)
|
||
|
|
{
|
||
|
|
val = Image_R_pixel(img, x, y);
|
||
|
|
if (val > seuil)
|
||
|
|
{
|
||
|
|
Image_ptl_add(ptl, x, y, val, 0);
|
||
|
|
nbre++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
foo = Image_ptl_write("pixels.ptl", ptl);
|
||
|
|
|
||
|
|
#if DEBUG_LEVEL
|
||
|
|
fprintf(stderr, "pix2ptl: %ld pixels\n", nbre);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return FUNC_IS_ALPHA;
|
||
|
|
}
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
|