How to plot colormap of color image (RGB) in matlab?

I need to analyze the colors of an image. I am wondering how to plot colormap of color image.

[KSSV]

Have you read this?

https://in.mathworks.com/help/matlab/ref/colormap.html

[Aarach Sap]

Yes, but I don't understand to solve my problem. Can we plot colormap of image(RGB)?

Answer 1

[Tim Jackman]

Try colorcloud(RGB)

https://www.mathworks.com/help/images/ref/colorcloud.html

[Walter Roberson]

Interesting. I had not seen that before. I see it is new in R2016b.

Answer 2

[KSSV]

doc imshow.

Answer 3

[Walter Roberson]

http://www.mathworks.com/matlabcentral/fileexchange/4875-color-image-histogram

http://www.mathworks.com/matlabcentral/fileexchange/28681-imhistogram

http://www.mathworks.com/matlabcentral/fileexchange/56662-rgb-image-histogram

[Aarach Sap]

Thank you very much.

Answer 4

[Image Analyst]

The color thresholder app on the apps tab will show you the color gamut, which is the real name for what you're asking for.

Answer 5

[Image Analyst]

You can also use the 3D Color Inspector plugin for ImageJ:

You can change color spaces and show appearance weighted by frequency if you want. You can also quantize into fewer colors, like as if you had run rgb2ind() on the image.