Category: Graphics Code  ·  Originally posted May 1, 2009  ·  Last updated February 1, 2011

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

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

 

bookmark and share this article

Email this article to a friend Print a copy of this article Subscribe to article comments Bookmark this article on Delicious Submit this article to reddit Submit this article to Digg Submit this article to StumbleUpon Share this article on Facebook Tweet this article

related articles

Discussion (Only one comment so far)

Public comments are closed for this article. Private comments may be submitted using this link.
  1. Cool, we did edge detection on FPGA and C program, VB6 hmmm

    By the edge detection project | May 25, 2009, 12:45 pm |