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C Language > Learn C Language > How do I write a C++ program to read the WeChat head,...
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How do I write a C++ program to read the WeChat head, square the dots per pixel and output the image?

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What I understand is, you want to perform certain operation on Image. There are various third party C/C++ library which can offer various API to perform operations on image. Listing some of them, libjpeg, magick++, OpenCV etc...
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