["python","python-3.x","image","python-imaging-library"]
Convert png to jpeg using Pillow

I am trying to convert png to jpeg using pillow. I've tried several scrips without success. These 2 seemed to work on small png images like this one. First code: from PIL import Image import os, sys im = Image.open("Ba_b_do8mag_c6_big.png") bg = Image.new("RGB", im.size, (255,255,255)) bg.paste(im,im) bg.save("colors.jpg") Second code: image = Image.open('Ba_b_do8mag_c6_big.png') bg = Image.new('RGBA',image.size,(255,255,255)) bg.paste(image,(0,0),image) bg.save("test.jpg", quality=95) But if I try to convert a bigger image like this one I'm getting Traceback (most recent call last): File "png_converter.py", line 14, in <module> bg.paste(image,(0,0),image) File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 1328, in paste self.im.paste(im, box, mask.im) ValueError: bad transparency mask What am i doing wrong?
You should use convert() method: from PIL import Image im = Image.open("Ba_b_do8mag_c6_big.png") rgb_im = im.convert('RGB') rgb_im.save('colors.jpg') more info: http://pillow.readthedocs.io/en/latest/reference/Image.html#PIL.Image.Image.convert