Python Imaging: load jpeg from memory

Question

The problem is to load jpeg-encoded image from memory.

I receive a string from socket:

jpgdata = self.rfile.read(sz) 

and I know that this is jpeg-encoded image.

I need to decode it. The most stupid solution is:

o = open("Output/1.jpg","wb") o.write(jpgdata) o.close() dt = Image.open("Output/1.jpg") 

The question is how to do the same thing in-memory?

Answer 1

PIL's Image.open object accepts any file-like object. That means you can wrap your Image data on a StringIO object, and pass it to Image.Open

from io import BytesIO file_jpgdata = BytesIO(jpgdata) dt = Image.open(file_jpgdata) 

Or, try just passing self.rfile as an argument to Image.open - it might work just as well. (That is for Python 3 - for Python 2 use from cStringIO import StringIO as BytesIO)