Book Image

Python Multimedia

By : Ninad Sathaye
Book Image

Python Multimedia

By: Ninad Sathaye

Overview of this book

Multimedia applications are used by a range of industries to enhance the visual appeal of a product. This book will teach the reader how to perform multimedia processing using Python. This step-by-step guide gives you hands-on experience for developing exciting multimedia applications using Python. This book will help you to build applications for processing images, creating 2D animations and processing audio and video. Writing applications that work with images, videos, and other sensory effects is great. Not every application gets to make full use of audio/visual effects, but a certain amount of multimedia makes any application a lot more appealing. There are numerous multimedia libraries for which Python bindings are available. These libraries enable working with different kinds of media, such as images, audio, video, games, and so on. This book introduces the reader to the most widely used open source libraries through several exciting, real world projects. Popular multimedia frameworks and libraries such as GStreamer,Pyglet, QT Phonon, and Python Imaging library are used to develop various multimedia applications.
Table of Contents (13 chapters)
Python Multimedia Beginner's Guide
Credits
About the Author
About the Reviewers
Preface

Time for action – embossing


  1. Download the image 0165_3_4_Bird_EMBOSS.png from the Packt website and save it as Bird_EMBOSS.png.

  2. Add the following code in a Python file:

    1 import os, sys
    2 import Image
    3 import ImageFilter
    4 imgPath = "C:\images\Bird_EMBOSS.png " 
    5 outImgPath = "C:\images\Bird_EMBOSSED.png "
    6 imgPath = os.path.normpath(imgPath)
    6 outImgPath = os.path.normpath(outImgPath)
    7 bird = Image.open(imgPath)
    8 bird = bird.filter(ImageFilter.EMBOSS)
    9 bird.save(outImgPath)
    10 bird.show()
  3. On line 9, the embossing filter ImageFilter.EMBOSS is applied to the image object bird. The resultant embossed image of the bird is shown in the next illustration.

    Original and embossed images of a bird using ImageFilter.EMBOSS.

What just happened?

We applied an embossing filter on an image and created an embossed image. As seen in previous section, the filter modified the brightness of various edges to make them appear highlighted or darkened. This created an optical illusion where the image appeared raised...