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 // slots = (256 for 8bit or 65536) + min and max range to speed up the tabulation
38 #define FLOAT_RANGE 1.2
39 // Minimum value in percentage
40 #define HISTOGRAM_MIN -10
41 #define HIST_MIN_INPUT -0.1
42 // Maximum value in percentage
43 #define HISTOGRAM_MAX 110
44 #define HIST_MAX_INPUT 1.1
46 #define PRECISION 0.001
48 #define THRESHOLD_SCALE 1000
53 class HistogramEngine;