MATLAB: Convert matrix to jet colormap image and save as tiff

colormapimageImage Processing Toolbox

I'm working with hundreds of images that I need to convert to images using the jet colormap.

I work with tiff files.

I can import these in as matrices, but I can't seem to find a way to convert them to jet colormap images.

I wish to be able to convert them to jet colormap images and export them as a tiff file.

Best Answer

Try ind2rgb

rgbImage = ind2rgb(grayImage, jet(256));

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MATLAB: Assigning color to gray image

I'd just use colormap and not mess with contours unless you know what you're doing and what you want. To pseudocolor a grayscale image an leave it as grayscale but display it as colored:

imshow(grayImage);
colormap(jet(256));
colorbar;

To convert a grayscale image into a true color RGB image and display the RGB image instead of the pseudocolored image:

rgbImage = ind2rgb(grayImage, jet(256));
imshow(rgbImage);

You don't use color bars with RGB images.

Best Answer

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MATLAB: Assigning color to gray image

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