Wechat image processing tool class implemented in Java [clipping, merging, equal scaling, etc.]

This paper describes the wechat image processing tool class implemented in Java. Share with you for your reference, as follows:

At present, there are few pictures and articles outside the core. After reading the copied code, they can't use it. They are processed with the corresponding jar package. Many of them are scaled in equal proportion, which can't meet the expectations they want to give: This tool class is a Java based self-contained class written for wechat printers, based on RGB.

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