-
Notifications
You must be signed in to change notification settings - Fork 0
/
colorshot.cpp
149 lines (134 loc) · 4.9 KB
/
colorshot.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/*
* This file is part of desktopToRGB.
*
* desktopToRGB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* desktopToRGB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with desktopToRGB. If not, see <https://www.gnu.org/licenses/>.
*/
#include "colorshot.h"
#define N_COLORS 13
std::array<std::array<unsigned char, 3>, N_COLORS> colors =
{{
{255,255,255},
{255, 51, 51},
{255,153,51},
{255,255,51},
{153,255,51},
{51,255,51},
{51,255,153},
{51,255,255},
{51,153,255},
{51,51,255},
{153,51,255},
{255,51,255},
{255,51,153}
}};
ColorShot::ColorShot(QObject *parent) : QObject(parent)
{
setJumpPixel(16);
setMinX(0);
setMinY(0);
setMaxX(QGuiApplication::primaryScreen()->geometry().width());
setMaxY(QGuiApplication::primaryScreen()->geometry().height());
setMaxBrightness(200);
setMinBrightness(100);
setMode(true);
}
int ColorShot::aproximeColor(unsigned char &red, unsigned char &green, unsigned char &blue, unsigned char &brightness )
{
//Aproximate allways color to 255
int maxBrightness;
red < green ? maxBrightness = green : maxBrightness = red;
if(maxBrightness < blue) maxBrightness = blue;
red = ((double)red/maxBrightness)*(255);
green = ((double)green/maxBrightness)*(255);
blue = ((double)blue/maxBrightness)*(255);
brightness = ((double)maxBrightness/255.0)*((double)getMaxBrightness()-getMinBrightness())+getMinBrightness();
int minHeuristic = pow(abs(colors[0][0] - red),2) + pow(abs(colors[0][1] - green),2) + pow(abs(colors[0][2] - blue),2);;
int minIndex = 0;
//Give a aproximation to colors
for (int i = 1; i < N_COLORS; ++i) {
int heuristic = pow(abs(colors[i][0] - red),2) + pow(abs(colors[i][1] - green),2) + pow(abs(colors[i][2] - blue),2);
if(heuristic < minHeuristic)
{
minIndex = i;
minHeuristic = heuristic;
}
}
return minIndex;
}
void ColorShot::getColorScreen(unsigned char &red, unsigned char &green, unsigned char &blue, unsigned char &brightness)
{
std::array<long,N_COLORS> frequency{0};
long brightnessMediam = 0;
int nPixel = 0;
//We take the screen
QScreen *screen = QGuiApplication::primaryScreen();
QImage image;
image = screen->grabWindow(0).toImage();
//ToDo: Apply only on the selected area
if(_inside)
{
for(int x = _minx; x < _maxx; x+=getJumpPixel())
for(int y = _miny; y < _maxy; y+=getJumpPixel())
{
QColor color = QColor(image.pixel(x,y));
unsigned char red = color.red();
unsigned char green = color.green();
unsigned char blue = color.blue();
//Obtain most aproximate color
int bestColor = aproximeColor(red,green,blue, brightness);
brightnessMediam+=brightness;
//Add frequency for that color
frequency[bestColor]++;
nPixel++;
}
}else
{
int width = screen->geometry().width();
int height = screen->geometry().height();
for(int x = 0; x < width; x+=getJumpPixel())
for(int y = 0; y < height; y+=getJumpPixel())
{
if(y > _miny && y < _maxy && x > _minx && x < _maxx)
{
y = _maxy;
}
QColor color = QColor(image.pixel(x,y));
unsigned char red = color.red();
unsigned char green = color.green();
unsigned char blue = color.blue();
//Obtain most aproximate color
int bestColor = aproximeColor(red,green,blue, brightness);
brightnessMediam+=brightness;
//Add frequency for that color
frequency[bestColor]++;
nPixel++;
}
}
//Now select the most frequency color and return it
int indexColor = 0;
int maxFrequency = frequency[0];
for(int i = 1; i < N_COLORS; i++)
{
if(frequency[i] > maxFrequency)
{
indexColor = i;
maxFrequency = frequency[i];
}
}
brightness = brightnessMediam/nPixel;
red = colors[indexColor][0];
green = colors[indexColor][1];
blue = colors[indexColor][2];
qDebug() << "ColorScreen: " << "[" << red << "," << green << "," << blue << "]";
}