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pythonimagepython-3.xpython-imaging-library
banx
banx

Reputation: 4416

Image library for Python 3

What is python-3 using instead of PIL for manipulating Images?

Upvotes: 153

Views: 177812

Answers (8)

bunkus
bunkus

Reputation: 1025

If you are on Python3 you can also use the library PILasOPENCV which works in Python 2 and 3. Function api calls are the same as in PIL or pillow but internally it works with OpenCV and numpy to load, save and manipulate images. Have a look at https://github.com/bunkahle/PILasOPENCV or install it with pip install PILasOPENCV. Not all PIL functions have been simulated but the most common functions work.

Upvotes: 0

linhares
linhares

Reputation: 524

Depending on what is needed, scikit-image may be the best choice, with manipulations going way beyond PIL and the current version of Pillow. Very well-maintained, at least as much as Pillow. Also, the underlying data structures are from Numpy and Scipy, which makes its code incredibly interoperable. Examples that pillow can't handle:

Region Adjacency Graph Merging

Radon Transform

Histogram of oriented gradients

Approximate and subdivide polygons

You can see its power in the gallery. This paper provides a great intro to it. Good luck!

Upvotes: 3

speedplane
speedplane

Reputation: 16121

You want the Pillow library, here is how to install it on Python 3:

pip3 install Pillow

If that does not work for you (it should), try normal pip:

pip install Pillow

Upvotes: 5

Janus Troelsen
Janus Troelsen

Reputation: 21270

The "friendly PIL fork" Pillow works on Python 2 and 3. Check out the Github project for support matrix and so on.

Upvotes: 96

s0mebody
s0mebody

Reputation: 61

As of March 30, 2012, I have tried and failed to get the sloonz fork on GitHub to open images. I got it to compile ok, but it didn't actually work. I also tried building gohlke's library, and it compiled also but failed to open any images. Someone mentioned PythonMagick above, but it only compiles on Windows. See PythonMagick on the wxPython wiki.

PIL was last updated in 2009, and while it's website says they are working on a Python 3 port, it's been 3 years, and the mailing list has gone cold.

To solve my Python 3 image manipulation problem, I am using subprocess.call() to execute ImageMagick shell commands. This method works.

See the subprocess module documentation.

Upvotes: 6

Oleh Prypin
Oleh Prypin

Reputation: 34116

Qt works very well with graphics. In my opinion it is more versatile than PIL.

You get all the features you want for graphics manipulation, but there's also vector graphics and even support for real printers. And all of that in one uniform API, QPainter.

To use Qt you need a Python binding for it: PySide or PyQt4.
They both support Python 3.

Here is a simple example that loads a JPG image, draws an antialiased circle of radius 10 at coordinates (20, 20) with the color of the pixel that was at those coordinates and saves the modified image as a PNG file:

from PySide.QtCore import *
from PySide.QtGui import *

app = QCoreApplication([])

img = QImage('input.jpg')

g = QPainter(img)
g.setRenderHint(QPainter.Antialiasing)
g.setBrush(QColor(img.pixel(20, 20)))
g.drawEllipse(QPoint(20, 20), 10, 10)
g.end()

img.save('output.png')

But please note that this solution is quite 'heavyweight', because Qt is a large framework for making GUI applications.

Upvotes: 13

luispedro
luispedro

Reputation: 7014

You can use my package mahotas on Python 3. It is numpy-based rather than PIL based.

Upvotes: 5

xob
xob

Reputation: 181

Christoph Gohlke managed to build PIL (for Windows only) for python versions up to 3.3: http://www.lfd.uci.edu/~gohlke/pythonlibs/

I tried his version of PIL with Python 3.2, and image open/create/pixel manipulation/save all work.

Upvotes: 18

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