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:


Prewitt method (horizontal):


Prewitt method (vertical):


Sobel method (horizontal):


Sobel method (vertical):


Laplacian method:


Hilite method:


Tanner’s method 1:


Tanner’s method 2:


Similar Posts:


DISCLAIMER: These download files are regularly scanned to ensure they remain free from malicious content. Unfortunately, some virus scanners will flag these .zip files as suspicious simply because they contain source code and/or executable files. I have submitted my projects to a number of companies in an attempt to rectify these false-positives. Some have been cooperative. Others have not. If your virus scanner alerts you regarding these files, please allow the file to be submitted for further analysis (if your program allows for that). This should help ensure that any false-positive warnings gradually disappear for all users.

This site - and its many free downloads - are 100% funded by donations. Please consider a small contribution to fund server costs and to help me support my family. Even $1.00 helps. Thank you!

One thought on “Edge Detection (in VB6)”

Comments are closed.