Fig. 5: High-definition image processing task.
From: Digital-analog hybrid matrix multiplication processor for optical neural networks
a The original 16-bit image and the processed image channels using the Prewitt vertical, Sobel vertical, and Laplacian operators. b A section of the processed sequences of pixel values. Up: processed by the HOP; Down: processed by a desktop computer. c Distribution of expected pixel values against the processed pixel values (both normalized). d Noise distribution and calculation accuracy.
