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Image Processing ,[object Object],[object Object],[object Object]

Smoothing… ,[object Object],[object Object],[object Object],200 100 100 200 100 100 200 100 100

Smoothing… ,[object Object],[object Object],166 133 100 166 133 100 166 133 100

Removing Noise ,[object Object],[object Object],100 100 100 100 255 100 100 100 100

Removing Noise ,[object Object],[object Object],100 100 100 100 100 100 100 100 100

Finding Edges ,[object Object],[object Object],This creates a distinct edge if there are variations across an image If there is no edge the image stays ‘smooth’ 200 200 200 200 200

Finding Edges ,[object Object],[object Object],200 200 200 200 200

Edge enhancement in the retina Compare these grey squares. Do they look the same, or different

Edge enhancement in the retina Now compare them. What do you notice? A B

Edge enhancement in the retina What about this way? What do you notice? A B

Edge enhancement in the retina Now move them closer . . . What happens? Which is darker? A B

Edge enhancement in the retina Now swap them What happens? Which is darker? A B

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