Exporting images (png) through export_fig - painfully slow
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I'm using export_fig to export a figure to a high resolution png and it's painfully slow. Takes about 36 seconds to perform the export. I also see the following warning upon export:
Warning: print2array generating a 83.6M pixel image. This could be slow and might also cause memory problems
Any suggestions on alternatives to speed up this portion of my code?
Yair Altman on 19 Sep 2021
Try to either reduce the resolution (the -r450 part), or to save as a vector-graphics image (PDF/EPS) rather than a PNG bitmap.
Oliver Woodford on 24 Oct 2021
Reducing the level of anti-aliasing will reduce the sixe of the images created, saving time. Use the '-aX' option, where X is 1 to 4 (faster to slower).