basic_functions.py

import cv2 as cv

img = cv.imread("./Resources/Photos/park.jpg")
cv.imshow("Cat", img)


# converting to grayscale
gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
cv.imshow("Cat", gray)

# blur
blur = cv.GaussianBlur(img, (7,7), cv.BORDER_DEFAULT)
cv.imshow("Blur", blur)

# Edge cascade / trying to find edges in image
# passing blur instead of img for better result
canny = cv.Canny(blur, 125, 175)
cv.imshow("canny edges",canny)

# Dilating the image
dilated = cv.dilate(canny, (7,7), iterations=3)
cv.imshow('Dilated', dilated)

# Eroding
eroded = cv.erode(dilated, (7,7), iterations=3)
cv.imshow('Eroded', eroded)

# Resize
resized = cv.resize(img, (500,500), interpolation=cv.INTER_CUBIC)
cv.imshow('Resized', resized)

# Cropping
cropped = img[50:200, 200:400]
cv.imshow('Cropped', cropped)


cv.waitKey(0)