hi,
even though the object I am imaging with an analog camera is not moving, I get lines that reminicent of an image of a moving object, where the interlacing of the odd and the even field causes double exposure. This is the most obvious in the areas of the image with a change from a dark to a light part.
One way to solve this problem is to only use one field and multiply the vertical enlargement by 2. But this way I am loosing part of the information.
the attachments give jpgs of
o the interlaced frame with a vertical expansion of 3 -> lines
o the even field only with a vertical expansion of 6 -> smooth image with less information
This problem started arrising when I changed from Labview 7.1 to 8.2, but using the older version of the program with 7.1 gives the same problems.
I am using a
PCI 1405 framegrabber with a JAI A50 camera
The sensitifity of the two fields seems to be different. Is there any way to correct this?
regards,
miethe
Message Edited by miethe on 06-08-2007 05:14 PM