Pattern matching in an image

Greetings everyone,

I am a PHP beginner and this is my first time here. I am using the pdf2html program which generates an image of every corresponding PDF page. Every image file basically contains 3 bar graphs. Next using the GD library I slice this image into 3 individual images containing one bar graph each (please see attachment). Now, I need to check for the presence of certain symbols on the left and right hand side of every bar.. kinda like pattern matching, although I am confused as to how I can achieve this with an image. Hope someone can help me. Thanks.

Attached Files

	outAbar1.zip (3.5 KB, 19 views)
	outbar1.zip (9.8 KB, 24 views)

re: Pattern matching in an image

Hey eureka2050, welcome to Bytes,

I know its possible, but not easy, certainly not easy for a PHP beginner.

But, I never say no, you shouldn't either, so I'll point the finger here:

http://www.google.com/search?hl=en&q...er&btnG=Search

Good luck!

---------------------------------------------------------------
Learning without thought is labor lost.


Dan

re: Pattern matching in an image

Hi Dan,

Thanks for responding. I searched in for captcha decoders as suggested by you, but sadly did not find any source code which I could have a look at. One link however did seem helpful: Decaptcha, but despite searching lots and lots could not find any more relevant information to guide me further.

Well, nothing's impossible and I am still being positive, hope I come across some solution.

Thanks again.