imagematlabsignal-processingtime-frequency

To make all peaks clearly visible in Matlab

I finally solved my problem here with lennon310. I have a picture of thousands of thin peaks in Time-Frequency picture. I cannot see all the same time in one picture. Depending on the physical width of my time window, some windows appear and some come visible.

Pictures of my data which I plot by imagesc

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All pictures are from the same data points T, F, B.

How can you plot all peaks at once in a picture in Matlab?

Solution

  • You need to resize the image using resampling to prevent the aliasing effect (that craigim described as unavoidable).

    For example, the MATLAB imresize function can perform anti-aliasing. Don't use the "nearest" resize method, that's what you have now.