Image Processing In Python

Digital Image Processing deals with analysis and manipulation of 'Digitized Images'. This repository contains programs to show basic image processing tasks.

Basic installations :

• Install Python
• Download and install Pillow for Python

Test Image :

The above gray scale image is used for image processing, color images can also be used.

Transformations :

1. Add pixel value : To every pixel a constant value is added.
2. Image Negative : Each pixel value of the input image is subtracted from the 255(2^8 - 1) and mapped onto the output image. As a result, darker pixels become light and ligter become dark.
3. Log Transformation : The log transformations uses the following equation:

   new pixel = c ∗log(old pixel +1)

   where c is a constant.
4. Power Law Transformation : The general form of Power law (Gamma) transformation function is :

   new pixel = s = c*power(old pixel, gamma)

   where c and gamma are constants.