4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #define HISTOGRAM_MODES 4
31 #define HISTOGRAM_RED 0
32 #define HISTOGRAM_GREEN 1
33 #define HISTOGRAM_BLUE 2
34 #define HISTOGRAM_VALUE 3
36 // Number of divisions in histogram.
37 // 65536 + min and max range to speed up the tabulation
38 #define HISTOGRAM_SLOTS 0x13333
39 #define FLOAT_RANGE 1.2
40 // Minimum value in percentage
41 #define HISTOGRAM_MIN -10
42 #define HIST_MIN_INPUT -0.1
43 // Maximum value in percentage
44 #define HISTOGRAM_MAX 110
45 #define HIST_MAX_INPUT 1.1
48 #define MAX_GAMMA 10.0
50 #define PRECISION 0.001
52 #define THRESHOLD_SCALE 1000
57 class HistogramEngine;