How would i convert a grayscale image to a false color image?

I would like to convert images that are grayscale to color. I need to find out a way to save images that look like what happens when you type image(grayscaleimage) into the code.

Answer 1

[Image Analyst]

For the first question on pseudocoloring, use colormap() or ind2rgb().

For the second question on saving a grayscale image, either really grayscale or one converted to rgb via ind2rgb(), use imwrite().

[jeremy wright]

I tried using colormap and it gave an error that "Colormap must have 3 columns: [R,G,B]" .

[jeremy wright]

I just thought of something, would I be able to color a video?

[Image Analyst]

So give it a colormap, like

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

You can pseudocolor a video by doing it one frame at a time and writing it back out as a color video. Use the VideoWriter class.