Are edge detected images fed to the CNN based architectures like VGG16, etc? I know that CNNs are able to detect features like Edges, lines, contours, etc but what will happen if one feeds edge detected images to the Convolutional Neural Networks?

  • $\begingroup$ Why would you do that? You might loose additional features in your data. I'd also scale data to [-1, 1] range, where -1 is the background. This data is sparse and you don't want to zero out your net. $\endgroup$ – Piotr Rarus - Reinstate Monica Dec 10 '19 at 9:52

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