Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Upsampling an image using OpenCV
In this program, we will up sample an image. Up sampling is increasing the spatial resolution while keeping the 2D representation of an image. It is typically used for zooming in on a small region of an image. We will use the pyrup() function in the openCV library to complete this task.
Original Image
Algorithm
Step 1: Read the image. Step 2: Pass the image as a parameter to the pyrup() function. Step 3: Display the output.
Example Code
import cv2
image = cv2.imread('testimage.jpg')
print("Size of image before pyrUp: ", image.shape)
image = cv2.pyrUp(image)
print("Size of image after pyrUp: ", image.shape)
cv2.imshow('UpSample', image)Output
Size of image before pyrUp: (350, 700, 3) Size of image after pyrUp: (700, 1400, 3)
Explanation
If we observe the size of the image before and after using the pyrUp function, we see that the size is increased, i.e., we have up sampled the image.
Updated on: 17-Mar-2021
3K+ Views
Advertisements