Grayscale image to rgb image

Can any one tranform the resultant inverse fourier transform image back to color because I am using the color image for FT.So when i apply IFT the resultant image should be color but I am seeing the gray image.Kindly help me my code is given below.

   imageA=imread('lena.bmp');
  figure,imshow(imageA)
  title('Original Grayscale Lena Image');
  imageA=double(rgb2gray(imageA));

 fftA=fft2(imageA);
 figure,imagesc(abs(fftshift(fftA)));
 colormap gray;
 imagesc(log(abs(fftshift(fftA))));
 title('RGB lena Image Magnitude throught Fourier Transforms');
 figure,imshow(angle(fftshift(fftA)),[-pi,pi]),colormap gray
 title('RGB Lena Image Phase through fourier transform');

 fftB = abs(fftA).*exp(i*angle(fftA));
 imageB=ifft2(fftB);
 cmin=min(min(abs(imageB)));
 cmax=max(max(abs(imageB)));
 figure,imshow(abs(imageB),[cmin cmax]); colormap in2rgb;
 title('RGB Resultant Image Magnitude By inverse Fourier Transform');

Answer 1

[Dr. Deepak Kumar Rout]

You have to find DFT of RGB frames of the color image and then back in order to get color image or if u have converted the color image to gray before conversion then you simply use a pseudocolor image processing algorithm to it

[Algorithms Analyst]

can you send me the complete code please..?

[Image Analyst]

I don't agree with that. Pseudocoloring has nothing to do with it. You can fft each color plane, then filter, then inverse fft, and use cat(3,r,g,b) to recombine into a color image.

Answer 2

[Dr. Deepak Kumar Rout]

check this out

http://www.mathworks.com/matlabcentral/fileexchange/28355-pseudocolor-image-processing

[Algorithms Analyst]

i checked it out but no special feedback..my coding is totally diferrent...can u resend the code to me after implementing my code into ur computer. Thanks

[Algorithms Analyst]

still no solution waiting..............