Changing the color of image

How can I change the white portion of the attached picture to blue and the black portion to a yellow/greenish color? Basically what I want to do is changing the picture from black and white to yellow and blue gradient. Thank you in advance!

Answer 1

[Image Analyst]

Use colormap()

Answer 2

[Gautam]

Hello Eric,

You can use the "winter" colormap to change the color of the image with a gradient of colours from green to blue.

img = imread("blackNWhite body scan.jpg");
I_gray = rgb2gray(img);

% Normalize the grayscale image to be used with the colormap
I_norm = mat2gray(I_gray);

% Apply a colormap (e.g., 'hot') to the grayscale representation
colormap_map = winter(256); % Create a colormap
I_colored = ind2rgb(im2uint8(I_norm), colormap_map);
imshow(I_colored);