CODEWITHSUNDEEP
pythonpython-imaging-librarypython-3.6
user9062604
user9062604

Reputation:

cannot write mode RGBA as JPEG

I am learning to use 'pillow 5.0' following book 'Automate the boring stuff with python'

The info about the image object

In [79]: audacious = auda
In [80]: print(audacious.format, audacious.size, audacious.mode)
PNG (1094, 960) RGBA

When I tried to convert filetype, it report error.

In [83]: audacious.save('audacious.jpg')
OSError: cannot write mode RGBA as JPEG

There's no such a n error in book.

Upvotes: 143

Views: 158030

Answers (2)

titanicsv
titanicsv

Reputation: 181

You can use only .png mode for save image in RGBA

im = Image.open("audacious.jpg")
rgb_im = im.convert('RGBA')
rgb_im.save('audacious.png')

Upvotes: 0

Patrick Artner
Patrick Artner

Reputation: 51643

JPG does not support transparency - RGBA means Red, Green, Blue, Alpha - Alpha is transparency.

You need to discard the Alpha Channel or save as something that supports transparency - like PNG.

The Image class has a method convert which can be used to convert RGBA to RGB - after that you will be able to save as JPG.

Have a look here: the image class doku

im = Image.open("audacious.png")
rgb_im = im.convert('RGB')
rgb_im.save('audacious.jpg')

Adapted from dm2013's answer to Convert png to jpeg using Pillow

Upvotes: 298

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