Saving grayscale image as it appears in jet colormap of imagesc

Hello, I have a grayscale TIF images (although it says it is TrueColor, nevermind). I need to convert them to grayscale and save it as it appears in imagesc(), colormap(jet) i.e. color picture.

Matlab code I use:

N = 4
FNAMEFMT = 'Frame%d.tif';
% Load images
for i=1:N
  IMAGES = imread(sprintf(FNAMEFMT, i));
  IMAGES = rgb2gray(IMAGES); 
  fname = sprintf('%s\\Frame%d.tif','C:\Project',i);
  imagesc(IMAGES); axis image; colorbar; colormap(jet);
  imwrite(IMAGES, fname, 'tif');
end

The pictures I import to MATLAB looking like that: http://img845.imageshack.us/img845/531/frame1m.png

And I need to save them looking like that: http://img850.imageshack.us/img850/5444/printscreenl.jpg

But the code I provided saves them again as black/white/gray.

Answer 1

[Walter Roberson]

http://www.mathworks.com/matlabcentral/fileexchange/7943

Answer 2

[Georgiy]

Didn't help. It freezes the colormap in Matlab, but when I SAVE the image using imwrite(IMAGES, fname, 'tif'); they saved as grayscale.

[Walter Roberson]

After you freeze the image, get() the CData property of the image handle; the data returned will be the data to imwrite()

[Georgiy]

Thanks a lot! It works.