VIPS values are very good and you should notice it says "All timings are for a 5,000 by 5,000 pixel 8-bit RGB image in uncompressed tiled TIFF format, 128 by 128 pixel tiles". I haven't used VIPS in production. It seems like it's better for big files. I heard VIPS is not that performing with small files.
Thanks for open sourcing. How hard is it to convert server-side from ruby to php ? I was expecting a simple ajax post. However it looks like ruby everywhere.
i'm sure you won't believe but it is not related. if it would be that way we could have written cute slogans aiming at Instagram :) BTW this uproar is more about Facebook than Instagram.
Instagram is a fine place but filters have become so cliche and so 2012.