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Is our depth image already 8 Bit? Otherwise you'll have to find a smart way to scale it to 8 Bit, which might be tricky;)
Assuming your depth image is cv::Mat of type CV_8UC1 and your RGB image is cv::Mat of type CV_8UC3 with color space BGR it is quite easy:
std::vector<cv::Mat> channels;
// split the channels
cv::split( rgb_image, channels );
// blend depth image into each channel
channels[ 0 ] = (channels[ 0 ] * 0.5) + ( depth_image * 0.5 );
channels[ 1 ] = (channels[ 1 ] * 0.5) + ( depth_image * 0.5 );
channels[ 2 ] = (channels[ 2 ] * 0.5) + ( depth_image * 0.5 );
// merge to overlayed image
cv::Mat blended;
cv::merge( channels, blended );
Easy solution :
double a = 0.5; double b;
b = ( 1.0 - a );
Mat Blended;
//Create image color
cv::Mat image_rgb(cv_ptr->image.rows, cv_ptr->image.cols, DataType<Vec3b>::type);
// convert the gray image to rgb
cvtColor(image_gray, image_rgb, CV_GRAY2RGB);
//Blend the two rgb (old+the new)
addWeighted( cv_ptr_omni->image, a, image8U_flip_rgb, 0.5, 0.5, Blended);
cv::imshow( "Linear Blend", Blended );
Asked: 2014-07-24 06:41:56 -0500
Seen: 1,323 times
Last updated: Jul 24 '14
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