Luz  Runolfsson

Luz Runolfsson


How To Convert PIL Image to Grayscale in Python

To convert PIL Image to Grayscale in Python, use the ImageOps.grayscale() method. PIL module provides ImageOps class, which provides various methods that can help us to modify the image.

To open the image in Python, PIL provides an Image class that has an open() image. So, we can open the image.

Pillow supports the variety of image file formats such as PNG, JPEG, PPM, GIF, TIFF, and BMP.

Pillow supports image editing operations like  cropping,  resizing, adding text to images, rotating, greyscaling.


The ImageOps.grayscale() function converts RGB image to Grayscale image. The complete pixel turns to grey, and no other color will be seen.




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How To Convert PIL Image to Grayscale in Python
Ray  Patel

Ray Patel


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

Ray  Patel

Ray Patel


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

Art  Lind

Art Lind


Python Tricks Every Developer Should Know

Python is awesome, it’s one of the easiest languages with simple and intuitive syntax but wait, have you ever thought that there might ways to write your python code simpler?

In this tutorial, you’re going to learn a variety of Python tricks that you can use to write your Python code in a more readable and efficient way like a pro.

Let’s get started

Swapping value in Python

Instead of creating a temporary variable to hold the value of the one while swapping, you can do this instead

>>> FirstName = "kalebu"
>>> LastName = "Jordan"
>>> FirstName, LastName = LastName, FirstName 
>>> print(FirstName, LastName)
('Jordan', 'kalebu')

#python #python-programming #python3 #python-tutorials #learn-python #python-tips #python-skills #python-development

Art  Lind

Art Lind


How to Remove all Duplicate Files on your Drive via Python

Today you’re going to learn how to use Python programming in a way that can ultimately save a lot of space on your drive by removing all the duplicates.


In many situations you may find yourself having duplicates files on your disk and but when it comes to tracking and checking them manually it can tedious.

Heres a solution

Instead of tracking throughout your disk to see if there is a duplicate, you can automate the process using coding, by writing a program to recursively track through the disk and remove all the found duplicates and that’s what this article is about.

But How do we do it?

If we were to read the whole file and then compare it to the rest of the files recursively through the given directory it will take a very long time, then how do we do it?

The answer is hashing, with hashing can generate a given string of letters and numbers which act as the identity of a given file and if we find any other file with the same identity we gonna delete it.

There’s a variety of hashing algorithms out there such as

  • md5
  • sha1
  • sha224, sha256, sha384 and sha512

#python-programming #python-tutorials #learn-python #python-project #python3 #python #python-skills #python-tips

Image Processing — OpenCV Vs PIL

Utilize the Python Libraries to Extract information from Images

The work of a Data Analyst is not limited to work only on readily available data, rather sometimes the data need to be mined from the images also.

This story is all about different types of image feature extraction using Python. Additionally, here you will find a classic comparison of the speed of two image processing libraries — OpenCV and PIL

____ OpenCV is 1.4 Times faster than PIL ____

📌 Want to follow along? here is my Jupyter-Notebook.

📌 More resources are always mentioned with 💡

In my recent project, I need to process 10000+ images per day and extract the data from them. And only Python can help me with this batch processing. I usually do the below processes on image:

1. Extract the aspect ratio of the image.

2. Crop the image.

3. Change the image to grayscaled one.

4. Image Rotation.

However, my work doesn’t stop here. I do much more ad-hoc analysis.

In my project, a lot of information is also hidden in the image name. And the string manipulation methods discussed here are quite handy in such tasks.

#python #image-processing #data #image processing — opencv vs pil #pil #opencv vs pil