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Try to write algorithm. For a rect I look for extremun in rectangle (or line for cross). I can use previous result for a pixel to calculate new pixel

Now I cannot do like this for MORPH_ELLIPS I have to scan two arrays. I cannot use previous results For each pixel I need to scan all neighbourood

Try to write algorithm. For a rect I look for extremun in rectangle (or line for cross). I can use previous result for a pixel to calculate new pixelpixel. Rect and cross are separable filter

Now I cannot do like this for MORPH_ELLIPS I have to scan two arrays. I cannot use previous results For each pixel I need to scan all neighbourood

Try to write algorithm. For a rect I look for extremun in rectangle (or line for cross). I can use previous result for a pixel to calculate new pixel. Rect and cross are separable filter

Now I cannot do like this for MORPH_ELLIPS I have to scan two arrays. I cannot use previous results For each pixel I need to scan all neighbouroodneighbouhood It is not a separable filter