diff options
Diffstat (limited to 'leptonica/prog/modifyhuesat.c')
| -rw-r--r-- | leptonica/prog/modifyhuesat.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/leptonica/prog/modifyhuesat.c b/leptonica/prog/modifyhuesat.c new file mode 100644 index 00000000..b1f25592 --- /dev/null +++ b/leptonica/prog/modifyhuesat.c @@ -0,0 +1,107 @@ +/*====================================================================* + - 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; +} + |