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/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*
* modifyhuesat.c
*
* modifyhuesat filein nhue dhue nsat dsat fileout
*
* where nhue and nsat are odd
*
* This gives a rectangle of nhue x nsat output images,
* where the center image is not modified.
*
* Example: modifyhuesat test24.jpg 5 0.2 5 0.2 /tmp/junkout.jpg
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
int main(int argc,
char **argv)
{
char *filein, *fileout;
l_int32 i, j, w, d, nhue, nsat, tilewidth;
l_float32 scale, dhue, dsat, delhue, delsat;
PIX *pixs, *pixt1, *pixt2, *pixd;
PIXA *pixa;
static char mainName[] = "modifyhuesat";
if (argc != 7)
return ERROR_INT(
" Syntax: modifyhuesat filein nhue dhue nsat dsat fileout",
mainName, 1);
filein = argv[1];
nhue = atoi(argv[2]);
dhue = atof(argv[3]);
nsat = atoi(argv[4]);
dsat = atof(argv[5]);
fileout = argv[6];
if (nhue % 2 == 0) {
nhue++;
lept_stderr("nhue must be odd; raised to %d\n", nhue);
}
if (nsat % 2 == 0) {
nsat++;
lept_stderr("nsat must be odd; raised to %d\n", nsat);
}
setLeptDebugOK(1);
if ((pixt1 = pixRead(filein)) == NULL)
return ERROR_INT("pixt1 not read", mainName, 1);
pixGetDimensions(pixt1, &w, NULL, NULL);
scale = 250.0 / (l_float32)w;
pixt2 = pixScale(pixt1, scale, scale);
pixs = pixConvertTo32(pixt2);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixGetDimensions(pixs, &w, NULL, &d);
pixa = pixaCreate(nhue * nsat);
for (i = 0; i < nsat; i++) {
delsat = (i - nsat / 2.0) * dsat;
pixt1 = pixModifySaturation(NULL, pixs, delsat);
for (j = 0; j < nhue; j++) {
delhue = (j - nhue / 2.0) * dhue;
pixt2 = pixModifyHue(NULL, pixt1, delhue);
pixaAddPix(pixa, pixt2, L_INSERT);
}
pixDestroy(&pixt1);
}
tilewidth = L_MIN(w, 1500 / nsat);
pixd = pixaDisplayTiledAndScaled(pixa, d, tilewidth, nsat, 0, 25, 3);
pixWrite(fileout, pixd, IFF_JFIF_JPEG);
pixDestroy(&pixs);
pixDestroy(&pixd);
pixaDestroy(&pixa);
return 0;
}
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