How to convert coordinate system of java image to conventional coordinate system?

Question

I am working on some image processing problem. So I am facing a problem that in java the coordinate system of image is not like the conventional coordinate system used in Mathematics (where origin is at bottom left corner), but instead it is a coordinate system where the origin is at top left corner and x increases to the right side, and y increased downside.

I want to change it to the conventional coordinate system. Please help me how to do that?

score 1 · Answer 1 · answered Sep 09 '13 at 20:27

1

Make the following transformation:

y2 = image.height - y

x2 = x

answered Sep 09 '13 at 20:27

Darren

465

score 0 · Answer 2 · answered Sep 09 '13 at 20:29

0

that's easy! let your max ordinate be 'Ymax'(for e.g. its 480 for 640x480) then new ordinate

Ynew = Ymax - Y (where Y is the ordinate u want to display)

answered Sep 09 '13 at 20:29

PleaseHelp

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How to convert coordinate system of java image to conventional coordinate system?

2 Answers2