How do code for the rectification of characters in a image or logo (C++)?

Question

4.00/5 (1 vote)

See more:

in most cases text is contained within well-defined rectangular boundaries.Rectangles after undergoing a projective transformation results in quadrilaterals.The vertices of the quadrilaterals could be used to obtian the homography between an arbitrary view to the frontal view.In case the original aspect ratio of the rectangle is known,then the vertices of the quadrilateral in the image can be mapped to the corners of the known rectangle.The exact rectification could be achieved.The basic algorithm i is given below

Algorithm:
1.Identify the corners of the bounding quadrilateral in the give =n image
2.map each vertex of the quadrilateral to the corresponding vertex in the known rectangle.

Posted 7-Jan-15 18:14pm

gvprakashgujjala

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

KarstenK · Accepted Answer · 2015-01-07T22:19:00

Each text is also a mixture of characters which can imagined as sub images. All of the subimages are the "font". To a font belongs also some vertical and horizintal distances between individuals char.

A fine explanation of the vertical measurements: Glossary of Font Terms.

For working with fonts and texts the is some API. For Windows you can start here: Fonts and Text.