官方PSNR和SSIM---matlab实现

简单好用的matlab实现批量计算彩色RGB图像的PSNR和SSIM，设置了3种转换方法，（1）matlab自带转换YUV格式，（2）自己编写YUV转换公式（3）matlab自带转换灰度格式

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%  FUNCTION:  metrix_mse
%%%
%%%  INPUTS:    reference_image     - original image data 
%%%
%%%             query_image         - modified image data to be compared with
%%%                                   original image
%%%
%%%  OUTPUTS:   metrix_value        - MSE value
%%%
%%%  CHANGES:   NONE
%%%             
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%  Author:    Matthew Gaubatz
%%%  Version:   1.0
%%%  Date:      01/05/2007
%%%  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%  Copyright （c） 2007 Visual Communications Lab Cornell University
%%%  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%  Permission to use copy modify distribute and sell this software
%%%  and its documentation for any purpose is hereby granted without fee
%%%  provided that the above copyright notice appear in all copies and
%%%  that both that copyright notice and this permission notice appear
%%%  in supporting documentation.  VCL makes no representations about
%%%  the suitability of this software for any purpose.
%%%  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%  DISCLAIMER:
%%%  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%  The code provided hereunder is provided as is without warranty
%%%  of any kind either express or implied including but not limited
%%%  to the implied warranties of merchantability and fitness for a
%%%  particular purpose.  The author（s） shall in no event be liable for
%%%  any damages whatsoever including direct indirect incidental
%%%  consequential loss of business profits or special damages.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function [metrix_value] = metrix_mse（reference_imagequery_image）

metrix_value = mean（ （reference_image（:） - query_image（:））.^2 ）;

 属性            大小     日期    时间   名称
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     文件       2138  2015-11-20 20:51  官方PSNR和SSIM\metrix_mse.m

     文件       3941  2015-12-01 13:19  官方PSNR和SSIM\metrix_psnr.m

     文件       2138  2008-04-15 01:52  官方PSNR和SSIM\metrix_ssim.m

     文件       1491  2015-12-01 13:21  官方PSNR和SSIM\psnr_ssim.m

     文件       7424  2015-12-01 13:21  官方PSNR和SSIM\ssim_index.m

     文件          0  2015-12-01 11:00  官方PSNR和SSIM\小海修改地方：添加了不同的图像转换方法.txt

     目录          0  2015-12-01 13:27  官方PSNR和SSIM

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