deleting every other line in an image

Stephen Barncard stephenREVOLUTION2 at barncard.com
Tue Nov 13 17:01:25 EST 2007


And you don't have 1080p available from the source?  That wouldn't be 
interlaced, methinks.


>Thanks!
>
>This is exactly what I needed!
>
>>just curious: why do you want to eliminate every second line of an image?
>
>
>Video cameras interlace two images taken a fraction of a second 
>apart into a single frame, leading to interlacing artifacts (a 
>serrated edge on fast moving objects).
>
>Your script will eliminate one of the fields, thereby isolating a 
>single "time slice" of reality.
>
>This comes at the expense of 50% loss in vertical resolution. 
>Luckily, an HD image has 1080 pixels to start with, so 540 pixels 
>vertical is plenty for web use.
>
>Thanks, can't wait to try it!
>

-- 


stephen barncard
s a n  f r a n c i s c o
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