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Peking University ACM problems 1009: edge detection

2022-04-21 13:35:00 【Rabbit cloud program】

Edge Detection

Time Limit: 1000MS Memory Limit: 10000K
Total Submissions: 25273 Accepted: 6065

Description

IONU Satellite Imaging, Inc. records and stores very large images using run length encoding. You are to write a program that reads a compressed image, finds the edges in the image, as described below, and outputs another compressed image of the detected edges.
A simple edge detection algorithm sets an output pixel's value to be the maximum absolute value of the differences between it and all its surrounding pixels in the input image. Consider the input image below:


The upper left pixel in the output image is the maximum of the va

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