Programming
Python Functions ( lambda function, map function, filter function)
Function is a block of code which performs specific task. How to call a function What is lambda function? Lambda function is anonymous function. No function name when we use lambda function. Lambda function has many argument but we can define only single expressions. To define a lambda function we will use lambda keyword. Lambda …
Python Functions ( lambda function, map function, filter function) Read More »
Flow control statement in Python
If and else statement in Python If we need to add some conditional statement then we will use if, else conditions. Loops in Python While Loop While loop executes statement repeatedly until condition is true. For Loop For loop iterate our sequence. Sequence is a list, tuple, dictionary. For is the basic keyword like other …
Data Structures in Python
In python their are four types of basic data structures Tuple Tuple is an ordered collection of elements enclosed within brackets. Tuples are immutable. List List is an ordered collection of elements enclosed within []. Lists are mutable. Dictionary Dictionary is an unordered collection of key-values pairs enclosed with {}. Dictionary is mutable. Set Set …
How to crop an image in OpenCV using Python
It is very easy to crop image in open CV import cv2 img = cv2.imread(“crop.png”) crop_img = img[y:y+h, x:x+w] cv2.imshow(“cropped”, crop_img) cv2.waitKey(0) We need to import open CV library. Then read image using imread function. Pass cropping coordinates x,y,w,h . Print image using imshow function.
How to convert image to text using OCR?
Yes, it is possible. We can extract text from images with the help of Tesseract OCR library. Let’s start how can we do this? Below code extract text from the above images: Output: “Word count writing mistakes plagiarism Check Now” Firstly we need to add Tesseract-OCR library in our system. Create a new Python file …
Python String functions
Len Function Len function used to count character in string. mystring = “Hello World” print(len(mystring)) Output: 11 Lower function Lower function used to convert string in lower case. mystring = “Hello World” print(mystring lower()) Output: hello word Upper function Upper function used to convert string in upper case. mystring = “Hello World” print(mystring.upper()) Output: HELLO WORLD Find …