What colormap I should choose to plot my figure like I attached to this question?

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Nisar Ahmed
Nisar Ahmed 2021-3-3
评论： Nisar Ahmed 2021-3-3
Say my code is
[Shot] = (ReadRSS('Pshot.rss'));
figure(1),
subplot(1,3,1);
imagesc(Shot); xlabel('Offset (m)'); ylabel('Time (ms)');
color=caxis; caxis(color*.005); colormap(gray);
I want to plot in the colormap shown in the attached figure rather than gray map.

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Bjorn Gustavsson
Bjorn Gustavsson 2021-3-3
You will find a couple of red-blue colormap-functions on the file exchange: redblue-colormap-generator-with-zero-as-white-or-black, diverging-redblue-colormap-from-tecplot and red-blue-colormap. Either of those should give you the colormap you want. Further fine-tuning you have to do yourself...
HTH

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