Comment on Optimizing Gaussian blurs on a mobile GPUComments−dharma112yyou can also downscale before blurring and upscale after blur. 4x without much noticeable difference in image quality. This gives a speed boost in two respects - less pixels and a smaller radius−xenonite12yThis is already mentioned in the article.
Comments
you can also downscale before blurring and upscale after blur. 4x without much noticeable difference in image quality. This gives a speed boost in two respects - less pixels and a smaller radius
This is already mentioned in the article.