%Let me explain with an example. %To the input image Iimg applied the 'Salt & Pepper noise' with the noise ratio of 20% and named as 'Nimg'. %Now for the 'Nimg' i applied median filter and named as Mimg. %Now i need to find the 'Peak signal noise ratio' PSNR comparison between Mimg and Nimg. clear all close all clc; Iimg =imread('Moon.tif'); [r c]=size( Iimg ); d=ndims( Iimg ); if d == 3 Iimg =rgb2gray( Iimg ); end Iimg =double( Iimg ); Iimg = Iimg /225; Nimg=imnoise( Iimg ,'salt & pepper',0.2); Mimg =medfilt2( Nimg ,[5 5]); imshow( Mimg ); clc; fprintf('\n\n### The PSNR value ###\n\n') PSNR( Nimg , Mimg ); subplot(1,2,1);imshow(Nimg);title('Noised image'); subplot(1,2,2);imshow(Mimg);title('Denoised image'); Moon.tif: RESULT: ### The PSNR value ### ...
Comments
Post a Comment