Edge Detection (in VB6)

Edge detection (also called “boundary detection”) is a fundamental problem in image processing.  The ability to accurately detect visible “edges” in an image has many applications – ranging from missile targeting to OCR to cool Photoshop effects.  In this project I’ve compiled 6 well-known edge detection algorithms (along with two of my own).

For those who have never used edge detection algorithms before, here are examples of various outputs:

Original image:

Lost_TV

Prewitt method (horizontal):

lost_1

Prewitt method (vertical):

lost_2

Sobel method (horizontal):

lost_3

Sobel method (vertical):

lost_4

Laplacian method:

lost_5

Hilite method:

lost_6

Tanner’s method 1:

lost_7

Tanner’s method 2:

lost_8

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