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Edge detection of the first frame with the operator, and e the corresponding structural similarity index measure (SSIM) maps and peak signal-to-noise ratios (PSNR). The pixels are encoded into 4, 16, 64, and 256-bits as the inputs. The SSIM and PSNR show that the operator using more bits gives higher edge detection precision. For comparison, the edge detection performed using the standard algorithmic method is presented as the ground truth.

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