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Simulated Human Vision..... Ian Overington |
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Location: Eastbourne. UK |
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Image as normally viewed - visually clearly a simple disc |
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Original image viewed at X10 magnification - note differential greyscale values around edge which actually contain the local shape data |
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Edge Detection |
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As a clear & simple demonstration of high fidelity, sub-pixel edge detection it is easiest to consider one of the simplest objects there is - a black disc of diameter 15 pixels (as shown to the right). |
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Edge detection by conventional edge Detectors (such as Canny Edge Detector) when viewed at X10 magnification |