How to save jpeg image of data with custom colormap without using a .fig file?

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I have large data (2Gb) that I have troubles plotting with pcolor or surf ?
How can I save an jpeg image of contour map plot like pcolor with my color map ? I cannot plot the pcolor fig file.
  1 comentario
Jan
Jan el 16 de Nov. de 2014
Please post your code an explain the occurring troubles. Why can't you plot the pcolor fig file?
What about imwrite?

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Image Analyst
Image Analyst el 16 de Nov. de 2014
You don't have a 2 GB screen so it doesn't make sense to try to plot the whole thing with surf. Try subsampling the data and then calling surf on the subsampled data. To save a contour plot, try export_fig.

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