图像剪切，图像处理的基础操作，只是简单的转换，基于频域的变换。-Image cropping , image processing operation , just a simple conversion , based on the frequency domain of the transform .

照片裁剪 在右键菜单中加入照片裁剪 点击打开工具 图片加载-Photo cropping Add photo cropping in the right-click menu click open the tool image loaded