praveenv23013808 / OPENING--AND-CLOSING

EX 10 OPENING AND CLOSING

Aim

To implement Opening and Closing using Python and OpenCV.

Software Required

1. Anaconda - Python 3.7
2. OpenCV

Algorithm:

• Step1: Import the necessary packages
• Step2: Give the input text using cv2.putText()
• Step3: Perform opening operation and display the result
• Step4: Similarly, perform closing operation and display the result

Program:

NAME: Praveen.V
REG.No:212222233004

Import the necessary packages

import numpy as np
import cv2
import matplotlib.pyplot as plt

Create the Text using cv2.putText

img1=np.zeros((100,400), dtype='uint8')
font=cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(img1,'Greedy',(5,70), font,2,(255),5,cv2.LINE_AA)

Create the structuring element

kernel=np.ones((5,5),np.uint8)
kernel1=cv2.getStructuringElement(cv2.MORPH_CROSS,(7,7))

Use Opening operation

image1=cv2.morphologyEx(img1,cv2.MORPH_OPEN,kernel)
plt.imshow(image1)
plt.axis("off")

Use Closing Operation

image2=cv2.morphologyEx(img1,cv2.MORPH_CLOSE,kernel)
plt.imshow(image2)
plt.axis("off")

Output:

Display the input Image

Display the result of Opening

Display the result of Closing

Result

Thus the Opening and Closing operation is used in the image using python and OpenCV.