清空筛选条件
清空筛选条件

Info

此问题已关闭。 请重新打开它进行编辑或回答。

question for digital watermark ?

2 次查看（过去 30 天）
ghassan78
ghassan78 2014-1-27
关闭： MATLAB Answer Bot 2021-8-20
if we are used this code for recover watermark .... the result is ok with gray watermark ... but way not ok with color watermar? pls help me... and thank you for all...
%determined the size of watermarked image
mw=size(image1,1); %heigth of the watermarked image
nw=size(image1,2); %width of the watermarked image
for ii = 1: mw
for jj = 1 : nw
watermark (ii,jj) = bitget(image1(ii,jj),1);
end
end
figure(2)
imshow(watermark);
title('extracted image'); % watermark image for watermarking

此问题已关闭。

回答（1 个）

Walter Roberson
Walter Roberson 2014-1-27
Replace the code with
watermark = bitget(image1, 1);
figure(2);
imshow(watermark);
title('extracted image');
  3 个评论
显示 1更早的评论
ghassan78
ghassan78 2014-1-29
thank you (Walter Roberson): but my question for color watermark : I mean , if I hide gray scale image inside color image then the result : color watermark : I want extracted this watermark ....... this code is ok with gray watermark but it doesn't work with color watermark , thankful

此问题已关闭。

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by