Histogram Matching with OpenCV, Scikit-image, and Python

Last week we discussed histogram equalization, a basic image processing technique that can improve the contrast of an input image.

But what if you wanted to match the contrast or color distribution of two images automatically?

For example, suppose we have an input image and a reference image. Our goal is to:

1. Compute histograms for each image
2. Take the reference image histogram
3. Update the pixel intensity values in the input image using the reference histogram, such that they match

We see the result in the figure at the top of this blog post. Notice how the input image is updated to match the color distribution of the reference image.

#python #opencv #histogram matching

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top 30 Python Tips and Tricks for Beginners

Welcome to my Blog , In this article, you are going to learn the top 10 python tips and tricks.

1) swap two numbers.

2) Reversing a string in Python.

3) Create a single string from all the elements in list.

4) Chaining Of Comparison Operators.

5) Print The File Path Of Imported Modules.

6) Return Multiple Values From Functions.

7) Find The Most Frequent Value In A List.

8) Check The Memory Usage Of An Object.

…

#python #python hacks tricks #python learning tips #python programming tricks #python tips #python tips and tricks #python tips and tricks advanced #python tips and tricks for beginners #python tips tricks and techniques #python tutorial #tips and tricks in python #tips to learn python #top 30 python tips and tricks for beginners

Python and OpenCV: Apply Filters to Images

I am pretty sure you have tried out various filters available on the social platforms and your camera as well.

Today in this tutorial, we will be applying few of the filters to images. Exciting right?

Let’s begin!

Table of Contents

1. Importing Modules

2. Loading the initial image

…

#python programming examples #python and opencv: apply filters to images #apply filters to images #python and opencv #opencv #filters to images

Lambda, Map, Filter functions in python

Welcome to my Blog, In this article, we will learn python lambda function, Map function, and filter function.

Lambda function in python: Lambda is a one line anonymous function and lambda takes any number of arguments but can only have one expression and python lambda syntax is

Syntax: x = lambda arguments : expression

Now i will show you some python lambda function examples:

#python #anonymous function python #filter function in python #lambda #lambda python 3 #map python #python filter #python filter lambda #python lambda #python lambda examples #python map

Python Imread(): Different Ways to Load an Image using The OpenCV.imread() Method

In this tutorial, we will learn how to use imread() method of OpenCV-Python in detail and different ways to load an image using imread() method.

Table of Contents

What is Python imread()?

Importing OpenCV to use Python imread()

Syntax of the Python imread() method

Image formats supported by Python imread() method

…

#python modules #opencv-python #python imread() #opencv.imread() #python imread(): different ways to load an image using the opencv.imread() method #load an image

Histogram Matching with OpenCV, Scikit-image, and Python

Last week we discussed histogram equalization, a basic image processing technique that can improve the contrast of an input image.

But what if you wanted to match the contrast or color distribution of two images automatically?

For example, suppose we have an input image and a reference image. Our goal is to:

1. Compute histograms for each image
2. Take the reference image histogram
3. Update the pixel intensity values in the input image using the reference histogram, such that they match

We see the result in the figure at the top of this blog post. Notice how the input image is updated to match the color distribution of the reference image.

#python #opencv #histogram matching