数字图像处理作业：相同条件下拍到的棋盘图和日历钟表图 相同条件下拍到的棋盘图和日历钟表图， 尝试建立 尝试建立几何畸变关系， 并对它们进行恢复- Digital image processing homework4: under the same conditions to take pictures of the checkerboard pattern and calendar clock diagram under the same conditions to take picture