noise.m

来自「基于dct的数字图像水印技术的matlab源代码。大家共享」· M 代码 · 共 12 行

clc
clear all
close all
WImage2=double(imread('dct1_watermarked','bmp')); 
imshow(WImage2,[]);
    noise0=50*rand(size(WImage2)); 
    WImage2=WImage2+noise0; 
    figure; 
      imshow(WImage2,[]);
      watermarked_image_int=uint8(WImage2);
      imwrite(watermarked_image_int,'WImage2.bmp','bmp');