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Hi, Currently I am trying to use the Matlab to plot a spectrogram image. I want this image is based on the scaled spectrogram data in dB with the 8-level "heat" color-encoding scheme, which is black, brown, blue, cyan, magenta, red, yellow and white. I have searched through all the Matlab supported colormaps. It looks like none of them I can use. Does anyone have some ideas on it? Thanks! Kim |
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colormap function
Started by ●July 17, 2003
Reply by ●July 18, 20032003-07-18
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Why not create your own colormap? help colormap explains the format of the colormap data. All you will need is a 8x3 matrix with each row containing the rgb values of a color. Navan --- kimzdsp <> wrote: > Hi, > > Currently I am trying to use the Matlab to plot a > spectrogram image. > I want this image is based on the scaled spectrogram > data in dB > with the 8-level "heat" color-encoding scheme, which > is black, brown, > blue, cyan, magenta, red, yellow and white. I have > searched through > all the Matlab supported colormaps. It looks like > none of them I can > use. Does anyone have some ideas on it? > Thanks! > > Kim __________________________________ |
