用于计算HU 的7个不变矩和RADON的2、3阶不变矩。网站中有C++写的RADON变换，但西北工业大学的一名教授使用RADON变换构建了这种新型的不变距，可以降低图象的维数，计算速度较快。算法详情可参考他的文献。-used in the calculation of the seven RADON unchanged moments and the 2,3-order moment invariants. Web site is written in C RADON transform, bu

PROJECT 02-02 Reducing the Number of Intensity Levels in an Image (a) Write a computer program capable of reducing the number of intensity levels in a image from 256 to 2, in integer powers of 2. The desired number of intensity levels needs to