get rid of some parts of png in java

Question

在我的程序中，我正在从面板中生成png，但是我想摆脱该面板的边界框，而将注意力更多地集中在面板中的对象上。为此，我想摆脱外围设备png的部分，仅产生其中心。我该怎么做？

Answer 1

Assuming that you already have your image loaded into a BufferedImage (which seems to be the case), this code will crop the image from (x,y) to (width,height).

image = image.getSubimage(x, y, width, height);

Then save as normal.