deleting every other line in an image
luis at anachreon.co.uk
Tue Nov 13 18:05:52 CST 2007
I think 1080i is interlaced, 1080p is not.
Stephen Barncard wrote:
> And you don't have 1080p available from the source? That wouldn't be
> interlaced, methinks.
>> This is exactly what I needed!
>>> just curious: why do you want to eliminate every second line of an
>> 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!
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