Need an image analyzing software!

[chemicool]

Hey friends....I am new to this forum.......I am a research student and studying on polymers. I am looking for a solution to my problem... I've got pictures in which fibers are there along with matrix[in .jpeg format]. Now i have to analyze the properties of polymers based on the length and number of fibers in it. I also want to find the orientation of fibers in the picture. For a long time, I have been searching for an image analyzing software to help me perform the task and I want to purchase it. Please reply as soon as possible if you can help with any information on such a type of software.