MATLAB: Compressed a color image

digital image processingimageimage analysisimage processing

can I compressed a color image using EZW technique ?

Best Answer

Yes. But that is an algorithm question, not a MATLAB question.

Related Solutions

MATLAB: Color Image filtration.

Is it possible to convert an RGB image into gray and keep one or two color?

Yes, provided the result is to be RGB.

For example,

%make it gray
gray_image = rgb2gray(original_image);
N = numel(gray_image);
%make the grayscale image into an RGB representation of a grayscale image
gray_as_rgb = repmat(gray_image, [1 1 3]);
%[255 255 0] is pure yellow. Find all the pixels that were that
mask = find(original_image(:,:,1) == 255 & original_image(:,:,2) == 255 & original_image(:,:,3) == 0);
%now paint the yellow back into the grayscale image
gray_as_rgb(mask) = 255;
gray_as_rgb(N+mask) = 255;
gray_as_rgb(2*N+mask) = 0;

Can a grayscal image with one color (RED) be converted to YCbCr color mode?

You would have had to convert back into RGB in order to hold the red as well, and that RGB can be converted into YCbCr

Best Answer

Related Solutions

MATLAB: Color Image filtration.

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