Monday, February 18, 2008

Xmas Trees and Non-Square Pixels

While shooting some video with the new camcorder this morning, we spotted a dead Christmas Tree over on the right hand side of the road on Grafton Street...

This brings the total Leaves And Trees In The Street thread up to number seven for this season. (The pic is a frame grab from a DV format capture.)

But the Xmas Tree spotting was incidental to my preoccupation with the ongoing testing of this camcorder. I slapped together this clip, just to see what one particular sequence of computer capture and editing steps would end up like...



As you can see, the whole thing's completely pixelized to beat the band. Partly, it's from trying the fastest and shortest processing sequence I could think of. Also, the speeding up of video for online streaming always takes a big toll, due to the shaking of the camera while riding on the streets of Worcester. At real time speed, the video probably wouldn't have ended up half bad, but micro motion on speedup (10x) tends to get compressed as macro-motion which, in turn, tends to pixelize more intensely. When entire frame after entire frame is completely different, it's tough to compress.

With seven different quality settings for source video and a half dozen output and processing alternatives, I've got a lot of testing ahead of me...

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