sumkee

Hello there, I'm a new LabView user who just started using it about 2 weeks ago. I'm trying to write a program that encode a picture (512x512 pixles) into a 512 columns x 512 row data file ( I think I got this part ). However, I'm trying to extract the value from the array. For instance, if the value > 0 @ x,y (30, 250), I want to show it in a graph. How would I do that!? I also included part of the VI that I composed. Maybe it doesn't make sense to most of you, since I just start. But please help. Thank you in advance, Pui