1、　　利用DCT进行jpg压缩，其中DCT可以调用函数，其它尽量自己编写代码，压缩过程可进行适当简化（通过查书了解jpg的原理）；

2、　　对图像进行二值化，请利用二值图像压缩方法进行数据压缩，然后解压缩，看通过肉眼能否看清表盘数据，比较两种算法的压缩效果；

-1, the use of DCT for jpg compression, which DCT can call the function, the other as far as possible to write your own code, the compression process can be simplified as appropriate

Technology (by checking the book to understand the principles jpg)

2, the binary image, please use the binary image compression method for data compression, and decompression, see through the naked eye can see

Clear dial data, compare the two compression algorithms