Generates graph for images

hi...
sorry if diz Q oready out sumwhere.
any1 know how to generate graph for an image (eg: gif, jpg)
can it be done using java?

You can read the cursor position on a XY graph to input a a new point when
the user moves it.
Attached is a clever trick to detect when the user releases the mouse
button to stop the curve input. On Macs and some Windows releases, the mouse
must be moved at least one pixel for the button release be detected.
Enjoy.
Jean-Pierre
[Attachment MouseTrack.llb, see below]
LabVIEW, C'est LabVIEW
Attachments:
MouseTrack.llb ‏113 KB

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