MATLAB: Remote Sensing Data

brightness levelremote sensing

hello all,

cannot find anywhere "gray scale in 128 brightness level" for plotting an image. how do you change brightness level? I tried to use "brighten (beta)", but it is only -1 to 1. thank you!

Kay

Best Answer

I don't know what you're after exactly but you might try imadjust(), or intlut(), or colormap(). One of those should probably do what you want.

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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.

MATLAB: How to recover to original image after i changed to gray level

Very simple in fact trivial:

Gray = Img;

Best Answer

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MATLAB: Assigning color to gray image

MATLAB: How to recover to original image after i changed to gray level

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