How to get a RGB matrix from a figure generated by MATLAB

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Thierry
Thierry 2015-5-28
回答： Image Analyst 2015-5-29
I make a figure with the help of PATCH command. (let's say 40k quad or tri individual patches) Then I'd like to get a RGB matrix from this figure.
Option 1 : cdata = print(fig,'-RGBImage') but it seems very inefficient in term of time consumption.
Option 2 : GETFRAME but appears to be very sensitive to the number of patch.
I'd like to use a more efficient way to do that since this is the bottle neck of the whole process.
Any idea of alternative or optimisation?

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回答（2 个）

Katarzyna Wieciorek
is imread inefficient too? imread
Image Analyst
Image Analyst 2015-5-29
I'd try getting cdata from the axes itself and not using print. I think that's like a low level trick. Otherwise, getframe() is the main way that you're supposed to do it.

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