Book Image

Python Image Processing Cookbook

By : Sandipan Dey
Book Image

Python Image Processing Cookbook

By: Sandipan Dey

Overview of this book

With the advancements in wireless devices and mobile technology, there's increasing demand for people with digital image processing skills in order to extract useful information from the ever-growing volume of images. This book provides comprehensive coverage of the relevant tools and algorithms, and guides you through analysis and visualization for image processing. With the help of over 60 cutting-edge recipes, you'll address common challenges in image processing and learn how to perform complex tasks such as object detection, image segmentation, and image reconstruction using large hybrid datasets. Dedicated sections will also take you through implementing various image enhancement and image restoration techniques, such as cartooning, gradient blending, and sparse dictionary learning. As you advance, you'll get to grips with face morphing and image segmentation techniques. With an emphasis on practical solutions, this book will help you apply deep learning techniques such as transfer learning and fine-tuning to solve real-world problems. By the end of this book, you'll be proficient in utilizing the capabilities of the Python ecosystem to implement various image processing techniques effectively.
Table of Contents (11 chapters)

Counting objects

In this recipe, you will learn how to use morphological filters to count objects in a binary image. Often, the objects (blobs) in a binary image are overlapping and, before counting them, we need to do some necessary preprocessing, such as blob separation and detection. Morphological erosion can be quite useful in these cases. Then, contour-finding can be used to count the separated objects. You can use morphological watershed segmentation, too, to separate the blobs and then count them.

Getting ready

Let's import the packages and modules required to start with:

import cv2
import numpy as np
import matplotlib.pylab as plt
...