DETECTING A PERFECT PURPLE PENCIL

Sample run of the app

Drawing a rectangle

The multiple ways to process an image

Threshold

Canny

Contour finding 

 

Comparing smudged vs original contours

Cropping

 

 

 

 

 

SAMPLE CODES

 

 

 

 

 

 

 

Drawing a rectangle

 

 

 

 

 

 

 

 

 

 

 

 

Threshold

 

 

 

 

 

 

 

Canny

 

 

 

 

 

 

 

 

 

 

Contour finding 

 

 

 

 

 

 

 

 

 

Contour comparing and drawing 

 

Cropping

 

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