Is it possible to have a custom color bar?
3 views (last 30 days)
Show older comments
Is it possible to have a custom color bar?
Dear all, I have a pre-plotted figure, Is it possible to add a color bar from -25 to 5600.
From light_brown = [0.95 0.9 0.8]; to brown_color = [0.8 0.2 0.1] to it?
0 Comments
Accepted Answer
Image Analyst
on 3 May 2020
Try this:
grayImage = imread('cameraman.tif');
% Rescale image to values -25 to 5600.
grayImage = rescale(double(grayImage), -25, 5600);
imshow(grayImage, []);
light_brown = [0.95 0.9 0.8];
brown_color = [0.8 0.2 0.1];
numColors = 256; % Whatever
redMap = linspace(light_brown(1), brown_color(1), numColors);
greenMap = linspace(light_brown(2), brown_color(2), numColors);
blueMap = linspace(light_brown(3), brown_color(3), numColors);
myColorMap = [redMap(:), greenMap(:), blueMap(:)];
colormap(myColorMap);
colorbar;
caxis([-25, 5600]);
2 Comments
Steven Lord
on 5 May 2020
You may also find the colormapeditor useful in creating custom color maps.
More Answers (0)
See Also
Categories
Find more on Blue in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!