I'm using a DM6446 card to take images from an external camera and
create some JPEGs. The system works great but my problem is with the
different resolutions within the codec. At the normal 720x540 resolution
it gives me the complete field of view, but when I drop down to say
320x240 instead of using the full field of view and only using every
other pixel it uses all the pixels in the central 320x240 box of the
frame. How do I get the sensor to use the entire field of view when
capturing at different resolutions?

 

If that's not possible and instead I'll have to do the interpolation
myself, what is the most efficient method of copying every other pixel
from the input frame to another buffer that I can then use for the JPEG
compression?

 

Thanks

 

Alex

 

 

Alex Tarter

Ultra Electronics

Communication & Integrated Systems

www.ultra-electronics.com

 



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