How to read the contents of the image

Question

5.00/5 (1 vote)

See more:

Hello Everyone..

Am having an image file(.jpg or .bmp) that contains some text,numeric value etc. For the first time i came across this situation to read the contents of the image file. Am not sure, Is it possible to read the contents of the file using MFC or WIN32 C++ or C# ?? If so how can i do this ?Please help me..!!

Thank you all.

Posted 22-May-12 23:14pm

Guru_C++

Add a Solution

3 solutions

Solution 1

You can if the image file is an EMF file.
Otherwise, you will need to learn about Steganography[^]

Posted 23-May-12 4:58am

«_Superman_»

Comments

Guru_C++ 24-May-12 1:00am

Thank you for replying..Really am in need of the answer.. Sure i will learn about steganography. And, If an image is an EMF file, then how can i read the contents of the image file. Can anyone explain about this..? Waiting for reply ..

«_Superman_» 24-May-12 1:32am

EMF files are made up of a header and individual records.
Each record is a GDI function.
What you need to look for is a textout function.
You can enumerate EMF records using the function EnumEnhMetaFile - http://msdn.microsoft.com/en-us/library/dd162613(v=vs.85).aspx

Guru_C++ 24-May-12 3:21am

Previously my image is in .bmp format that contains some individual prices like Rs 1530.98. Using Image online converter, i converted to .emf format. Now how do i identify the header & individuals records in that ?? And also how can i read that price ? Its really a complex task..!! And, When i open the EMF file in paint , it is same as that of .bmp file ..

Solution 3

After some research, finally i got this link: http://www.transym.com/download-sample-source-code.htm[^] . This project reads the data from the image. The above solutions are helpful for the study purpose on image processing ..

Posted 28-May-12 1:24am

Guru_C++

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)

Volynsky Alex · Accepted Answer · 2012-05-24T06:41:00

Solution 2

Please, read here:
http://stackoverflow.com/questions/2183194/extracting-text-from-images[^]

http://www.java2s.com/Code/Cpp/Qt/Addimagetotextformat.htm[^]

!!!!
http://www.cplusplus.com/forum/general/44620/[^]

Posted 24-May-12 6:41am

Volynsky Alex

Comments

Guru_C++ 25-May-12 2:11am

This link is absolutely what i was looking for http://www.codeproject.com/KB/recipes/OCRwithMODI.aspx.. But when i execute the source code, its giving something Debug assertion failed..
Also, in debug mode, i found that VS2008 creates a breakpoint at the following line in occcont.cpp:ASSERT(IsWindow(pTemp->m_hWnd));

Probably, After googling i found ActiveX control is not registered in ur computer. How do i register ActiveX control in MFC appliction ?