Real-time Canny edge detection using OpenCV and CUDA

Показать описание

OpenCV 2.4.11
CUDA 7.0 on GeForce 660GTX
Logitech HD Webcam C525

Pseudocode:

cv::VideoCapture captureDevice(0);

while (true)
{

cv::Mat source;

gpu::GpuMat d_source(source);
gpu::GpuMat d_greyscale, d_blurred, d_dst;

gpu::cvtColor(d_source, d_greyscale, CV_BGR2GRAY);
gpu::blur(d_greyscale, d_blurred, Size(3, 3));

int ratio = 3;
int kernel_size = 3;
gpu::Canny(d_blurred, d_dst, lowThreshold, lowThreshold * ratio, kernel_size);

cv::Mat cannyEdge(d_dst);
cv::imshow("Canny edge video", cannyEdge);

}