Welcome Guest! To enable all features, please Login or Register.

Notification

Icon
Error

Options
View
Last Go to last post Unread Go to first unread post
#1 Posted : Tuesday, January 21, 2014 12:31:09 AM(UTC)
Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

A good CAPTCHA image is relatively easy to be understood by a human user but hard or impossible to be recognized using standard OCR algorithms.
The attached image shows how the following LEADTOOLS image processing functions could be used to generate such an image:
  • PerlinCommand
  • WaveCommand
  • FreeHandShearCommand

The image shows the function parameters used through the C DLL Image Processing Features demo. Similar results can be accomplished using code without displaying the dialog boxes using either the .NET classes mentioned above or their equivalent C/C++ functions.

Maen Badwan
LEADTOOLS Technical Support

ZMkkAIP.png

Edited by moderator Monday, April 24, 2017 10:53:35 AM(UTC)  | Reason: Not specified

 

Try the latest version of LEADTOOLS for free for 60 days by downloading the evaluation: https://www.leadtools.com/downloads

Wanna join the discussion? Login to your LEADTOOLS Support accountor Register a new forum account.

You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF.NET | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.044 seconds.