I am completely new to photoshop. I used the gaussian filter on face images. As you know, you input into the filter the radius (smaller radius = less filtered image). However, I need to report the filter that I did in terms of cycles per face width. Supposed I know the width of the face (in pixels) and the radius that I input into the gaussian filter in photoshop, can anyone tell me how to convert this into cycles per face width?
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