placing images in bin folder: what is the default folder of the application.

Hi, I have created an image processing application in c# but the problem is that the image that i am displaying as a default image in the application window requires me to give full path of the of the folder where it is placed. So i placed the image in bin folder of the application so that it can be accessed irrespective of the computer i m running my application. but it is not working as well. Is there any way i can solve this problem. Please help me. Thanx a lot, bye.