Image Processing Using OpenCV and Python

What is Image Processing?

Image processing is any form of processing for which the input is an image or a series of images or videos, such as photographs or frames of video. The output of image processing can be either an image or a set of characteristics or parameters related to the image.

Open-CV

OpenCV is a free open source library used in real-time image processing. It mainly focuses on image processing, video capture and analysis including features like face detection and object detection.

Let’s start with the basics.

First install the Open-CV library using command

pip install opencv-python

Let’s see how we can read an image and display an image using Open-CV and python.

1) Reading an Image

Let’s see the syntax for reading an image in our IDE

Syntax

cv2.imread(“parameter 1”,” parameter 2”)

**parameter 1: – **your image to be read

parameter 2: –

**1: **Loads a colour image neglecting any transparency of image

**0: **Loads image in grayscale mode

**-1: **Loads image as such including alpha channel

2) Displaying an Image

Syntax

cv2.imshow(‘Window name’,’ display image’)
cv2.waitKey(0)
cv2.destroyAllWindows()

#technology #python #using opencv