图象平移旋转等几何变换小程序，可以参考使用。-image translation rotating geometry transform small program can use and reference.

内核，直线强调。对于较大的内核，成为计算昂贵。-The Rotating Kernel Transformation convolves an image with several orientations of a kernel. For a line-kernel, straight lines are emphasized. For larger kernels, it becomes computationally expensive.

The code normalizes the signature image through the following Pre proceessing steps Resizing Thinning Rotating Cropping a boundry box around it-The code normalizes the signature image through the following Pre proceessing steps