Since we are already familiar with the basics, let's jump right into the code. I am skipping the header declarations because they remain the same as we saw in our previous code:
int main()
{
Mat input_image = imread("lena.png", IMREAD_GRAYSCALE);
Mat filtered_image;
blur(input_image, filtered_image, Size(3, 3), Point(-1, -1), BORDER_REPLICATE);
imshow("Original Image", input_image);
imshow("Filtered Image", filtered_image);
waitKey(0);
return 0;
}
The first thing that you notice about the blur() function is that the number of arguments is less than its counterpart. Upon a closer inspection, you'll find that the following two arguments are missing:
Depth of the output image: According to OpenCV's documentation for
blur(), the output image has the same size and type as the source image. Since the equality between the input and output image types is already enforced by the implementation...