老外编的的程序，可以成功运行，推荐下载学习-mosaic.m Code Descr iption

The mosaic.m scr ipt operates as follows:

First, it converts the values of the images from unsigned int to double. This is done because most of the MATLAB operations use double as default type. Then, it asks for the points to be matched. Once it has this information it performs a transformation based on an estimate. The value of each pixel is then chosen using a bilinear interpolation. Finally, the mosaicked image is displayed.