Represent data as image using color amplitude and hue

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Chuck37 2020-8-4

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https://ww2.mathworks.cn/matlabcentral/answers/575218-represent-data-as-image-using-color-amplitude-and-hue

回答： Image Analyst 2020-8-4

I have 4D data, which is really 2D data with two properties for each location in the 2D array. I would like to represent this data as an image by encoding the first feature as brightness (0=black) and the second feature as color/hue around the color wheel. Does MATLAB have any built in functions to make this easier?

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Answer 1

Image Analyst 2020-8-4

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https://ww2.mathworks.cn/matlabcentral/answers/575218-represent-data-as-image-using-color-amplitude-and-hue#answer_475228

在 MATLAB Online 中打开

You could try something like this:

Sounds like 3-D data to me. Or even two separate 2-D images. So try

[rows, columns, numColors] = size(yourBrightnessImage);
hsvImage = ones(rows, columns, 3);
hsvImage(:, :, 3) = 255 * mat2gray(yourBrightnessImage); % Assign intensity channel.
hsvImage(:, :, 1) = yourHueImage; % Assign hue channel.
rgbImage = hsv2rgb(hsvImage);
imshow(rgbImage);

If you need more help, attach your data.