计算熵值，互信息 自信息 香农编码 费诺编码 包含源代码-Calculate the entropy, mutual information contains the source code from the information the Shannon encoded Fenno coding

影像融合质量评价代码，自己写的，包括熵，相关系数，偏差等-Image fusion quality evaluation code, wrote it myself, including entropy, correlation coefficient, bias, etc.