How to remove specific noises?
I am doing a image processing project which is about the noise removal. I use erode() function, dilate() function, and fastNlMeansDenoising() function to remove small pattern noises. It is successful but not perfect for all my sample images.
Thus, I proposed a method that is to detect that specific color of noises and remove the similar color of those noises. As the color of noises is a majority in the image, I could detect that kind of color. But how can I do that?
Using HSV plane?
Try the fast smoothing filters like guided filter or WLS Smoothing in ximgproc. They can keep important detail while still smoothing.
If you want anything more specific, we need more detail and probably sample images.