Now that we know how to handle the webcam and keyboard/mouse inputs, let's go ahead and see how to convert a picture into a cartoon-like image. We can either convert an image into a sketch or a colored cartoon image.
Following is an example of what a sketch will look like:
If you apply the cartoonizing effect to the color image, it will look something like this next image:
Let's see how to achieve this:
import cv2
import numpy as np
def cartoonize_image(img, ds_factor=4, sketch_mode=False):
# Convert image to grayscale
img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# Apply median filter to the grayscale image
img_gray = cv2.medianBlur(img_gray, 7)
# Detect edges in the image and threshold it
edges = cv2.Laplacian(img_gray, cv2.CV_8U, ksize=5)
ret, mask = cv2.threshold(edges, 100, 255, cv2.THRESH_BINARY_INV)
# 'mask' is the sketch of the image
if sketch_mode:
return cv2.cvtColor(mask, cv2.COLOR_GRAY2BGR)
# Resize the...