Obtain intensity of each pixel in a contour plot?

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Nicole Ralbovsky
Nicole Ralbovsky 2021-3-11
回答： darova 2021-3-12
I have generated a contour plot with a dimension size of 101 x 102 pixels. I would like to obtain the "level" of each pixel (which I interpret as being the relative intensity of that pixel) and then reshape that into the same size plot. I know that I can click on each pixel and it will tell me the level, but I was wondering if there was a code I could use to return all intensity values for all pixels. Thanks.

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回答（1 个）

darova
darova 2021-3-12
You can extract each contour separately
[c,h] = contour(x,y,z);
h1 = get(h,'children');
for i = 1:length(h1)
x = get(h1(i),'xdata');
y = get(h1(i),'ydata');
line(x,y,'color',rand(1,3))
end

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