In this tutorial, we will practice the principles of Object-Oriented Programming and draw a forest of unique tree objects.
We will first create a Tree class and then we will replicate it in different locations, sizes and colours. We will also include a very large degree of randomness in our code, so that each time our program runs - a brand new forest with brand new trees is created! 🤩🤩🤩
🛑🤚 HAVE YOU WATCHED ✋🛑
*******************************************
1. My OOP and Classes Tutorial:
https://youtu.be/f0TrMH9s-VE
2. My Draw Shapes with OpenCV Tutorial:
https://youtu.be/PtvN8ad9N3g
*******************************************
⏰ TIMESTAMPS ⏰
00:00 - intro
00:16 - starter code overview
01:01 - create a class
01:22 - class attributes
02:07 - class methods
03:40 - call class
05:40 - relative coordinates
06:22 - draw object
09:04 - scale object
13:35 - fancy design tricks
14:40 - draw step repeat objects
16:04 - draw objects at random location
19:47 - draw with random colors
24:14 - coming soon and thank you!
🐍 STARTER CODE 🐍
************************************************
import numpy as np
import cv2 as cv
import random
# general parameters
width = 900
height = 600
n_trees = 30
ground_level = height-100
# colours
green, light_green, brown = (40,185,40),(25,220,0),(30,65,155)
# blank image
bg = np.zeros((height, width, 3), dtype=np.uint8)
# draw background
cv.rectangle(bg,(width,0), (0, ground_level), (255,225,95), -1)
cv.rectangle(bg,(width, ground_level), (0, height), green, -1)
# ***************
# YOUR CODE GOES HERE
# ***************
#display image
cv.imshow('forest of objects', bg)
cv.waitKey(0)
cv.destroyAllWindows()
************************************************
🐍 END OF STARTER CODE 🐍
Didn't feel like coding along? 🙃
Get the complete code from my Github: https://github.com/MariyaSha/OpenCV_DrawImages/blob/main/completeCode_OpenCVForest.ipynb
Thanks for watching!
Find me on:
LinkedIn - https://linkedin.com/in/mariyasha888/
Discord - https://discord.gg/WeTz5A2FfS
