2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by Francois Fleuret //
16 // (C) Idiap Research Institute //
18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
19 ///////////////////////////////////////////////////////////////////////////
21 #include "rgb_image_subpixel.h"
23 RGBImageSubpixel::RGBImageSubpixel(int width, int height) : RGBImage(width * scale, height* scale) { }
25 RGBImageSubpixel::RGBImageSubpixel(RGBImage *image) : RGBImage(image->width() * scale, image->height() * scale) {
26 for(int y = 0; y < _height; y++) {
27 for(int x = 0; x < _width; x++) {
29 image->pixel(x / scale, y / scale, RGBImage::RED),
30 image->pixel(x / scale, y / scale, RGBImage::GREEN),
31 image->pixel(x / scale, y / scale, RGBImage::BLUE));
36 RGBImageSubpixel::~RGBImageSubpixel() { }
38 void RGBImageSubpixel::read_png(const char *filename) {
42 void RGBImageSubpixel::write_png(const char *filename) {
43 RGBImage tmp(_width / scale, _height / scale);
44 for(int y = 0; y < _height / scale; y++) {
45 for(int x = 0; x < _width / scale; x++) {
46 int sr = 0, sg = 0, sb = 0;
47 for(int yy = y * scale; yy < (y + 1) * scale; yy++) {
48 for(int xx = x * scale; xx < (x + 1) * scale; xx++) {
49 sr += int(_bit_plans[RED][yy][xx]);
50 sg += int(_bit_plans[GREEN][yy][xx]);
51 sb += int(_bit_plans[BLUE][yy][xx]);
56 sr / (scale * scale), sg / (scale * scale), sb / (scale * scale));
59 tmp.write_png(filename);
63 void RGBImageSubpixel::read_jpg(const char *filename) {
67 void RGBImageSubpixel::write_jpg(const char *filename, int quality) {
68 RGBImage tmp(_width / scale, _height / scale);
70 for(int y = 0; y < _height / scale; y++) {
71 for(int x = 0; x < _width / scale; x++) {
72 int sr = 0, sg = 0, sb = 0;
73 for(int yy = y * scale; yy < (y + 1) * scale; yy++) {
74 for(int xx = x * scale; xx < (x + 1) * scale; xx++) {
75 sr += int(_bit_plans[RED][yy][xx]);
76 sg += int(_bit_plans[GREEN][yy][xx]);
77 sb += int(_bit_plans[BLUE][yy][xx]);
82 sr / (scale * scale), sg / (scale * scale), sb / (scale * scale));
86 tmp.write_jpg(filename, quality);
90 void RGBImageSubpixel::draw_line(int thickness,
91 unsigned char r, unsigned char g, unsigned char b,
92 scalar_t x0, scalar_t y0, scalar_t x1, scalar_t y1) {
93 RGBImage::draw_line(int(thickness * scale),
95 x0 * scale + scale/2, y0 * scale + scale/2,
96 x1 * scale + scale/2, y1 * scale + scale/2);