Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (
Help us improve Python packaging - Donate today!

Conversion between QImages and numpy.ndarrays.

Project Description

qimage2ndarray is a small python extension for quickly converting between QImages and numpy.ndarrays (in both directions). These are very common tasks when programming e.g. scientific visualizations in Python using PyQt4 as the GUI library.

  • Supports conversion of scalar and RGB data, with arbitrary dtypes and memory layout, with and without alpha channels, into QImages (e.g. for display or saving using Qt).

  • qimage2ndarray makes it possible to create ndarrays that are views into a given QImage’s memory.

    This allows for very efficient data handling and makes it possible to modify Qt image data in-place (e.g. for brightness/gamma or alpha mask modifications).

  • Masked arrays are also supported and are converted into QImages with transparent pixels.

  • Supports recarrays (and comes with an appropriate dtype) for convenient access to RGB(A) channels.

  • Supports value scaling / normalization to 0..255 for convenient display of arbitrary NumPy arrays.

  • qimage2ndarray is stable and unit-tested.

Release History

This version
History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, Size & Hash SHA256 Hash Help File Type Python Version Upload Date
(188.7 kB) Copy SHA256 Hash SHA256
Source None Mar 18, 2016

Supported By

Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Google Google Cloud Servers