Logarithmic value scaling in image-function

Tim Hilt 님이 질문을 제출함. 10 Oct 2019

최근 활동 thoughtGarden 님이 답변함. 10 Oct 2019

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I have some files, that contain Fourier-transformed data, that is collected over time. If it weren't already transformed, i would use a spectrogram to visualize it, but since that is not an option i was using image().

I'm looking for a way to get logarithmic color scaling for the values that i feed to the function, but couldn't find it.

Can someone help me out?

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thoughtGarden 님의 답변 10 Oct 2019

Are trying to scale the colors so that changes are exaggerated? Here is an example of what you could do:

C = [1 2 3; 4 5 6; 7 8 9];
figure(1);
image(C);
C10 = 10.^C;
figure(2);
image(C10);

This takes your colors and scales them logrithmically.

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Tim Hilt (view profile)