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KwickClips Artificial Intelligence · 40 sec · free

What does the 0 in imread do?

Short answer. Loads the image in grey.

Why blur first?

To remove noise.

Remember

Grey, then blur
Canny finds edges

Can four lines of Python draw the outline of a photo? Zero loads it grey. Blur removes noise. Canny finds edges. Imwrite saves them. The recipe is simple. Grey, then blur. Canny finds the edges.

This clip is from the full lesson: Image Processing with OpenCV in Python — 9 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 10 Artificial Intelligence (417), CBSE Class 12 Artificial Intelligence (843)

More KwickClips from this lesson

Code: pip install opencv-python, then import cv2.Why does import opencv fail?38 secCode: imread, imshow, waitKey and resize to (400, 300).Why did my resized photo stretch?41 secCode: imread, COLOR_BGR2GRAY and cvtColor.Why turn photos grey first?41 sec
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