Draw a Rectangle
In OpenCV, the cv2.rectangle() function is used to draw a rectangle on an image. The function requires five parameters:
- the image to be modified;
- the top-left corner coordinates of the rectangle (specified as a tuple of
xandycoordinates); - the bottom-right corner coordinates of the rectangle (specified as a tuple of
xandycoordinates); - the color of the rectangle (specified as a tuple of Red, Green, Blue values);
- the thickness of the rectangle, which is optional and can be set to a negative value to fill the rectangle.
Uppgift
Swipe to start coding
- Use the correct function to draw a rectangle on
image1.
Lösning
# Start coordinate, here (0, 0)
# represents the top left corner of image
start_point = (0, 0)
# End coordinate, here (250, 250)
# represents the bottom right corner of image
end_point = (250, 250)
# Green color in BGR
color = (0, 255, 0)
# Line thickness of 9 px
thickness = 9
# Draw a green rectangle with thickness of 9 px
image = cv2.rectangle(image1, start_point, end_point, color, thickness)
plt.imshow(image);
Congratulations on completing your Python project on handling images! Your hard work and dedication to learning and mastering the tools and techniques of image processing is truly impressive. I hope you enjoyed the journey and look forward to seeing the amazing things you will create with your newfound skills. Keep up the good work!
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Avsnitt 1. Kapitel 11
AVAILABLE TO ULTIMATE ONLY
