Plot a pixel intensity image

2021 4 29
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更新时间：2021 4 29
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Hi I would like to plot a pixel image like figure with a color range red,yellow, green,blue. In example I couldnt find red as a combination.
Attached images for example.

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Matt J
Matt J 2021-4-29
编辑：Matt J 2021-4-29
Ran in:

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Ran in:
Perhaps with 'jet',
imshow('cameraman.tif')
colormap jet
colorbar

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Muniyat Rafa
Muniyat Rafa 2021-4-29
Thank you so much Matt J I could bring the color range :D
Now for drawing how can I draw an image which is round in structure whereas pixel box is square in structure. Shall I increase the number of matrix?
Matt J
Matt J 2021-4-29
编辑：Matt J 2021-4-29
Thank you so much Matt J I could bring the color range :D
You're very welcome. Please Accept-click the answer to cofirm that it reoslved your question.

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Matt J
Matt J
2021-4-29

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