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Diffstat (limited to 'leptonica/prog/scaletest1.c')
| -rw-r--r-- | leptonica/prog/scaletest1.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/leptonica/prog/scaletest1.c b/leptonica/prog/scaletest1.c new file mode 100644 index 00000000..0525832a --- /dev/null +++ b/leptonica/prog/scaletest1.c @@ -0,0 +1,92 @@ +/*====================================================================* + - 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. + *====================================================================*/ + +/* + * scaletest1.c + * + * scaletest1 filein scalex scaley fileout + * where + * scalex, scaley are floating point input + */ + +#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 d; +l_float32 scalex, scaley; +PIX *pixs, *pixd; +static char mainName[] = "scaletest1"; + + if (argc != 5) + return ERROR_INT(" Syntax: scaletest1 filein scalex scaley fileout", + mainName, 1); + filein = argv[1]; + scalex = atof(argv[2]); + scaley = atof(argv[3]); + fileout = argv[4]; + setLeptDebugOK(1); + + if ((pixs = pixRead(filein)) == NULL) + return ERROR_INT("pixs not made", mainName, 1); + + /* choose type of scaling operation */ +#if 1 + pixd = pixScale(pixs, scalex, scaley); +#elif 0 + pixd = pixScaleLI(pixs, scalex, scaley); +#elif 0 + pixd = pixScaleSmooth(pixs, scalex, scaley); +#elif 0 + pixd = pixScaleAreaMap(pixs, scalex, scaley); +#elif 0 + pixd = pixScaleBySampling(pixs, scalex, scaley); +#else + pixd = pixScaleToGray(pixs, scalex); +#endif + + d = pixGetDepth(pixd); + +#if 1 + if (d <= 8) + pixWrite(fileout, pixd, IFF_PNG); + else + pixWrite(fileout, pixd, IFF_JFIF_JPEG); +#else + pixWrite(fileout, pixd, IFF_PNG); +#endif + + pixDestroy(&pixs); + pixDestroy(&pixd); + return 0; +} + |