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 ///////////////////////////////////////////////////////////////////////////
23 Same as RGBImage, but with sub-pixel resolution to produce nifty
24 smoothing in the drawings.
28 #ifndef RGB_IMAGE_SUBPIXEL_H
29 #define RGB_IMAGE_SUBPIXEL_H
32 #include "rgb_image.h"
34 class RGBImageSubpixel : public RGBImage {
35 static const int _scale = 8;
38 RGBImageSubpixel(int width, int height);
39 RGBImageSubpixel(RGBImage *image);
40 virtual ~RGBImageSubpixel();
42 inline int width() const { return _width / _scale; }
43 inline int height() const { return _height / _scale; }
45 virtual void read_ppm(const char *filename);
46 virtual void write_ppm(const char *filename);
48 virtual void read_png(const char *filename);
49 virtual void write_png(const char *filename);
51 virtual void read_jpg(const char *filename);
52 virtual void write_jpg(const char *filename, int quality);
54 virtual void draw_line(int thickness,
55 unsigned char r, unsigned char g, unsigned char b,
56 scalar_t x0, scalar_t y0, scalar_t x1, scalar_t y1);