Edges characterize boundaries and are therefore a problem of fundamental importance in image processing image edge detection significantly reduces the amount of data . 31 secret key cryptography secret key cryptography methods employ a single key for both encryption and decryption as shown in figure 1a the sender uses the key . An encryption method is presented with the novel property that publicly revealing an encryption key does not thereby reveal the corresponding decryption key. Free website builder create awesome mobile friendly websites no coding and free
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