将原来的JPG图像转换格式转为BMP格式，适用于后期处理-The original JPG format images converted to BMP format for post-processing

ANSYS 后处理，实现多窗口显示输出结果，背景颜色修改，输出高质量图片，更改结果变形比例参数。-ANSYS POST1 processing, multi-window display output, changes the background color, high-quality image output, the result of changing the ratio of the deformation parameters.

DIB类 用于后期数字灰度图像处理，把对DIB的各种操作封装在此类中-The DIB class is used for post-digital grayscale image processing and encapsulates various operations on DIB