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/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
- This software is distributed in the hope that it will be
- useful, but with NO WARRANTY OF ANY KIND.
- No author or distributor accepts responsibility to anyone for the
- consequences of using this software, or for whether it serves any
- particular purpose or works at all, unless he or she says so in
- writing. Everyone is granted permission to copy, modify and
- redistribute this source code, for commercial or non-commercial
- purposes, with the following restrictions: (1) the origin of this
- source code must not be misrepresented; (2) modified versions must
- be plainly marked as such; and (3) this notice may not be removed
- or altered from any source or modified source distribution.
*====================================================================*/
/*
* compfilter_reg.c
*
* Tests filters that select components based on size, etc.
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
static void count_pieces(PIX *pix, l_int32 nexp);
static void count_pieces2(BOXA *boxa, l_int32 nexp);
main(int argc,
char **argv)
{
BOX *box1, *box2, *box3, *box4;
BOXA *boxa, *boxat;
PIX *pixs, *pixt, *pixd;
static char mainName[] = "compfilter_reg";
/* Draw 4 filled boxes of different sizes */
pixs = pixCreate(200, 200, 1);
box1 = boxCreate(10, 10, 20, 30);
box2 = boxCreate(50, 10, 40, 20);
box3 = boxCreate(110, 10, 35, 5);
box4 = boxCreate(160, 10, 5, 15);
boxa = boxaCreate(4);
boxaAddBox(boxa, box1, L_INSERT);
boxaAddBox(boxa, box2, L_INSERT);
boxaAddBox(boxa, box3, L_INSERT);
boxaAddBox(boxa, box4, L_INSERT);
pixRenderBox(pixs, box1, 1, L_SET_PIXELS);
pixRenderBox(pixs, box2, 1, L_SET_PIXELS);
pixRenderBox(pixs, box3, 1, L_SET_PIXELS);
pixRenderBox(pixs, box4, 1, L_SET_PIXELS);
pixt = pixFillClosedBorders(pixs, 4);
pixDisplayWrite(pixt, 1);
/* Exercise the parameters */
pixd = pixSelectBySize(pixt, 0, 22, 8, L_SELECT_HEIGHT,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 1);
pixd = pixSelectBySize(pixt, 0, 30, 8, L_SELECT_HEIGHT,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 3);
pixd = pixSelectBySize(pixt, 0, 5, 8, L_SELECT_HEIGHT,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 3);
pixd = pixSelectBySize(pixt, 0, 6, 8, L_SELECT_HEIGHT,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 1);
pixd = pixSelectBySize(pixt, 20, 0, 8, L_SELECT_WIDTH,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 2);
pixd = pixSelectBySize(pixt, 31, 0, 8, L_SELECT_WIDTH,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 2);
pixd = pixSelectBySize(pixt, 21, 10, 8, L_SELECT_IF_EITHER,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 3);
pixd = pixSelectBySize(pixt, 20, 30, 8, L_SELECT_IF_EITHER,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 2);
pixd = pixSelectBySize(pixt, 22, 32, 8, L_SELECT_IF_BOTH,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 2);
pixd = pixSelectBySize(pixt, 6, 32, 8, L_SELECT_IF_BOTH,
L_SELECT_IF_LT, NULL);
count_pieces(pixd, 1);
pixd = pixSelectBySize(pixt, 5, 25, 8, L_SELECT_IF_BOTH,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 1);
pixd = pixSelectBySize(pixt, 25, 5, 8, L_SELECT_IF_BOTH,
L_SELECT_IF_GT, NULL);
count_pieces(pixd, 1);
pixd = pixSelectByAreaPerimRatio(pixt, 1.7, 8, L_SELECT_IF_LT, NULL);
count_pieces(pixd, 2);
pixd = pixSelectByAreaPerimRatio(pixt, 5.5, 8, L_SELECT_IF_LT, NULL);
count_pieces(pixd, 3);
pixd = pixSelectByAreaPerimRatio(pixt, 1.5, 8, L_SELECT_IF_GTE, NULL);
count_pieces(pixd, 2);
pixd = pixSelectByAreaPerimRatio(pixt, 13.0/12.0, 8, L_SELECT_IF_GT, NULL);
count_pieces(pixd, 3);
boxat = boxaSelectBySize(boxa, 21, 10, L_SELECT_IF_EITHER,
L_SELECT_IF_LT, NULL);
count_pieces2(boxat, 3);
boxat = boxaSelectBySize(boxa, 22, 32, L_SELECT_IF_BOTH,
L_SELECT_IF_LT, NULL);
count_pieces2(boxat, 2);
system("/usr/bin/gthumb junk_write_display* &");
boxaDestroy(&boxa);
pixDestroy(&pixt);
pixDestroy(&pixs);
return 0;
}
void count_pieces(PIX *pix, l_int32 nexp)
{
l_int32 n;
BOXA *boxa;
pixDisplayWrite(pix, 1);
boxa = pixConnComp(pix, NULL, 8);
n = boxaGetCount(boxa);
if (n == nexp)
fprintf(stderr, "Correct: Num. comps: %d\n", n);
else
fprintf(stderr, "WRONG!: Num. comps: %d\n", n);
boxaDestroy(&boxa);
pixDestroy(&pix);
}
void count_pieces2(BOXA *boxa, l_int32 nexp)
{
l_int32 n;
n = boxaGetCount(boxa);
if (n == nexp)
fprintf(stderr, "Correct: Num. boxes: %d\n", n);
else
fprintf(stderr, "WRONG!: Num. boxes: %d\n", n);
boxaDestroy(&boxa);
}
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