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Commiting HSV equalizer tool.

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This commit is contained in:
Emil Martinec
2010-11-11 14:33:26 -06:00
parent 06875fede4
commit 1a2e7a9b4a
20 changed files with 690 additions and 43 deletions
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23
rtgui/navigator.cc
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@@ -100,7 +100,7 @@ void Navigator::rgb2hsv (int r, int g, int b, int &h, int &s, int &v) {
volatile double var_G = g / 255.0;
volatile double var_B = b / 255.0;
volatile double var_Min = MIN(MIN(var_R,var_G),var_B);
/*volatile double var_Min = MIN(MIN(var_R,var_G),var_B);
volatile double var_Max = MAX(MAX(var_R,var_G),var_B);
double del_Max = var_Max - var_Min;
double V = (var_Max + var_Min) / 2;
@@ -120,6 +120,27 @@ void Navigator::rgb2hsv (int r, int g, int b, int &h, int &s, int &v) {
else if ( var_G == var_Max ) H = (1.0 / 3.0) + del_R - del_B;
else if ( var_B == var_Max ) H = (2.0 / 3.0) + del_G - del_R;
if ( H < 0 ) H += 1;
if ( H > 1 ) H -= 1;
}*/
double var_Min = MIN(MIN(var_R,var_G),var_B);
double var_Max = MAX(MAX(var_R,var_G),var_B);
double del_Max = var_Max - var_Min;
double V = var_Max;
double H, S;
if (fabs(del_Max)<0.001) {
H = 0;
S = 0;
}
else {
S = del_Max/var_Max;
if ( var_R == var_Max ) H = (var_G - var_B)/del_Max;
else if ( var_G == var_Max ) H = 2.0 + (var_B - var_R)/del_Max;
else if ( var_B == var_Max ) H = 4.0 + (var_R - var_G)/del_Max;
H /= 6.0;
if ( H < 0 ) H += 1;
if ( H > 1 ) H -= 1;
}