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Adjust HSV of image on Opencv
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#include <opencv2/highgui/highgui.hpp> | |
#include <opencv2/imgproc/imgproc.hpp> | |
using namespace cv; | |
using namespace std; | |
/// Global variables | |
Mat src,img,image; | |
int elem1 = 255; | |
int elem2 = 255; | |
int elem3 = 255; | |
int const max_elem = 500; | |
/** Function Headers */ | |
void Hue( int, void* ); | |
void Saturation( int, void* ); | |
void Value( int, void* ); | |
void Processing(); | |
/** @function main */ | |
int main( int argc, char** argv ) | |
{ | |
/// Load an image | |
namedWindow("image"); | |
createTrackbar( "Huse", "image",&elem1, max_elem,Hue); | |
createTrackbar( "Saturation", "image",&elem2, max_elem,Saturation); | |
createTrackbar( "Value", "image",&elem3, max_elem,Value); | |
src = imread( "C:\\Users\\Hasanaga\\Downloads\\1.jpg" ); | |
waitKey(0); | |
return 0; | |
} | |
void Hue(int, void *) | |
{ | |
Processing(); | |
} | |
void Saturation(int, void *) | |
{ | |
Processing(); | |
} | |
void Value(int, void *) | |
{ | |
Processing(); | |
} | |
void Processing() | |
{ | |
cvtColor(src,img,CV_RGB2HSV); | |
int hue = elem1 - 255; | |
int saturation = elem2 - 255; | |
int value = elem3 - 255; | |
for(int y=0; y<img.cols; y++) | |
{ | |
for(int x=0; x<img.rows; x++) | |
{ | |
int cur1 = img.at<Vec3b>(Point(y,x))[0]; | |
int cur2 = img.at<Vec3b>(Point(y,x))[1]; | |
int cur3 = img.at<Vec3b>(Point(y,x))[2]; | |
cur1 += hue; | |
cur2 += saturation; | |
cur3 += value; | |
if(cur1 < 0) cur1= 0; else if(cur1 > 255) cur1 = 255; | |
if(cur2 < 0) cur2= 0; else if(cur2 > 255) cur2 = 255; | |
if(cur3 < 0) cur3= 0; else if(cur3 > 255) cur3 = 255; | |
img.at<Vec3b>(Point(y,x))[0] = cur1; | |
img.at<Vec3b>(Point(y,x))[1] = cur2; | |
img.at<Vec3b>(Point(y,x))[2] = cur3; | |
} | |
} | |
cvtColor(img,image,CV_HSV2RGB); | |
imshow( "image", image ); | |
} |
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