[19:47:37] <Jesperhead> hey guys. using PIL to preprocess some images and a little confused. i have a .png of a handwritten digit, and im able to successfully invert/colorize the writing (written in black), but the white background of the paper does not seem to be affected
[19:54:37] <Jesperhead> same thing with the grayscale function (i think), the image appears unchanged though since the handwriting is in black
[20:02:03] <Jesperhead> these digits were cropped with gimp and exported as png. i wonder if im exporting them with some funky settings but unsure which ones (interlacing, save bg color, save gamma, save layer offset, etc