4_basic.py

import cv2 as cv

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

# Converting to grayscale
gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
cv.imshow("Gray", gray)

# Blur
blur = cv.GaussianBlur(img, (3, 3), cv.BORDER_DEFAULT)
cv.imshow("Blur", blur)
blur2 = cv.GaussianBlur(img, (7, 7), cv.BORDER_DEFAULT)
cv.imshow("Blur2", blur2)

# Edge Cascade
canny = cv.Canny(img, 125, 175)
cv.imshow("Canny Edges", canny)
canny = cv.Canny(img, 55, 125)
cv.imshow("Canny Edges 2", canny)
canny = cv.Canny(blur, 125, 175)
cv.imshow("Canny Edges Blur", canny)

# Dilating the image
dilated = cv.dilate(canny, (3, 3), iterations = 1)
cv.imshow("Dilated", dilated)

# Eroding
eroded = cv.erode(dilated, (3, 3), iterations = 1)
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)