denoise rgb image use wavelet

1 view (last 30 days)
michael scheinfeild
michael scheinfeild on 6 Aug 2012
i want to denoise rgb image , i want that output image will be also rgb but i just have white output i want to keep the rgb info i dont want to use the method in
http://www.mathworks.com/help/toolbox/wavelet/gs/f4-1013594.html since the rgb info lost ==================================
unregistered = imread('westconcordaerial.png');
figure(1), imshow(unregistered);title('original')
vSpeckle = 0.05;
imgaddnoise = imnoise(unregistered,'speckle',vSpeckle);
figure(2), imshow(imgaddnoise);title('with speckle noise')
//------------------
method 1 not work
for(lcolor=1:3)
ximg=double(imgaddnoise(:,:,lcolor));
[thr,sorh,keepapp] = ddencmp('den','wv', ximg);
imgOutWavelet(:,:,lcolor) = wdencmp('gbl',ximg,'sym4',2,thr,sorh,keepapp);
mx = max(max( imgOutWavelet(:,:,lcolor)))
imgOutWavelet(:,:,lcolor) =imgOutWavelet(:,:,lcolor)/mx;
end
figure(6)
imagesc( imgOutWavelet);title('filtered image wavelets ')
---------------
% method two i dont want to do !!!
A = double(imgaddnoise);
Xrgb = 0.2990*A(:,:,1) + 0.5870*A(:,:,2) + 0.1140*A(:,:,3);
NbColors = 255;
X = wcodemat(Xrgb,NbColors);
map = pink(NbColors);
[thr,sorh,keepapp] = ddencmp('den','wv', X);
xd = wdencmp('gbl',X,'sym4',2,thr,sorh,keepapp);
% its not rgb already . .

Answers (0)

Categories

Find more on Denoising and Compression in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!