denoise rgb image use wavelet

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 . .