how do i convert rgb image to grayscale and then back to rgb?

Question

Aakash Amar 2017-3-30

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回答： TEJASWINI CHINAWALE 2017-9-21

please help me out if there is any method to do this

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Answer 1

Image Analyst 2017-3-30

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在 MATLAB Online 中打开

Try

grayImage = rgb2gray(rgbImage);  % Convert to gray scale.
rgbImage = ind2rgb(grayImage, colorMap);  % Will not be the same original RGB image though.

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Answer 2

TEJASWINI CHINAWALE 2017-9-21

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You can try using jet(m) command which returns the colormap with m colors. You can change the value of m depending on how the converted image should look like.However it is not possible to obtain the original coloured image once you convert it to grayscale or any other form.