[ Show ]
Support VoyForums
[ Shrink ]
VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 12345678910 ]

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 13:45:50 10/10/05 Mon
Author: Cesar Romero
Subject: Detect edges from defined area

My project is:
I have "human cells" image and need to draw the only one cell edge when user click over the cell with mouse
Can I do that with Envision Image Library????
1) user load the image (like the attached)
2) user click over a image area
3) the library need to draw in the edge a 1 pixel line and give the area (eg. heigh and width)

The work will be always:
1) Image will be black, white and gray tons
2) the user will click over the center of a cell

I dont want that you tell me step-by-step how to do that, I will work on that my self after study the library, but download the the demo and the Image|Edge detection dont work how I spected there, coz in demo I cant define the area.

Any comments or suggestions is appreciated.

A image sample can be found at <a rel=nofollow target=_blank href="http://www.liws.com.br/projetos/0105001d.JPG">http://www.liws.com.br/projetos/0105001d.JPG</a>

[ Next Thread | Previous Thread | Next Message | Previous Message ]


Post a message:
This forum requires an account to post.
[ Create Account ]
[ Login ]
[ Contact Forum Admin ]

Forum timezone: GMT-5
VF Version: 3.00b, ConfDB:
Before posting please read our privacy policy.
VoyForums(tm) is a Free Service from Voyager Info-Systems.
Copyright © 1998-2019 Voyager Info-Systems. All Rights Reserved.