Mat FeatureGaborBlob::getColorCodedBlob(){
Mat hsv_img(_blob.size(), CV_32FC3);
Vec3f hsv_clr ;
hsv_clr(0) = _angle ;
hsv_clr(1) = 1.0 ;
for ( int row = 0 ; row < hsv_img.rows ; row++ )
for ( int col = 0 ; col < hsv_img.cols ; col ++ ){
hsv_clr(2) = _blob.at<float>(row, col);
hsv_img.at<Vec3f>(row, col) = hsv_clr ;
}
Mat rgb_img ;
cvtColor(hsv_img, rgb_img, COLOR_HSV2RGB);
return rgb_img ;
}
int main(int argc, char* argv[])
{
cv::Mat hsv_img(cv::Size(480, 240), CV_8UC3);
cv::Mat canvas_img;
cv::namedWindow(win_name_canvas);
cv::createTrackbar("H", win_name_canvas, &val_h, 179, nullptr, nullptr);
cv::createTrackbar("S", win_name_canvas, &val_s, 255, nullptr, nullptr);
cv::createTrackbar("V", win_name_canvas, &val_v, 255, nullptr, nullptr);
while(true) {
// HSV -> BGR
hsv_img.setTo(cv::Scalar(val_h, val_s, val_v));
cv::cvtColor(hsv_img, canvas_img, cv::COLOR_HSV2BGR);
// test : HSV -> BGR -> HSV
uchar r, g, b, h, s, v;
h = (uchar)val_h;
s = (uchar)val_s;
v = (uchar)val_v;
hsv2rgb(h, s, v, r, g, b);
rgb2hsv(r, g, b, h, s, v);
cv::Vec3b hsv = hsv_img.at<cv::Vec3b>(cv::Point(0, 0));
cv::Vec3b rgb = canvas_img.at<cv::Vec3b>(cv::Point(0, 0));
draw_rgbhsv(canvas_img, "opencv: ", 10, 20, rgb[2], rgb[1], rgb[0], hsv[0], hsv[1], hsv[2]);
draw_rgbhsv(canvas_img, "test: ", 34, 46, r, g, b, h, s, v);
cv::imshow(win_name_canvas, canvas_img);
int c = cv::waitKey(1);
if (c == 27) break;
}
cv::destroyAllWindows();
return 0;
}
