[Hidden-tech] TIFF -> DVD

[Rikk Desgres]

David, 

What you are seeing are interlacing artifacts. Video is presented in two
half frames consisting of two fields of video. The odd lines are presented
then the even lines. This 1930¹s antiquated technology is was needed because
TV monitors could not keep the image up a full 30th of a second. Today¹s TV
can do that, but NTSC SD is still interlaced.
Video is 720x480 non-square pixels. To help eliminate this resize your
pictures to 720x536 (square pixels), then to 720x480 (non-square pixels.)
You may have to apply a de-interlacing filter to the images that still give
you trouble.

Rikk

-- 
Rikk Desgres
Pinehurst Pictures & Sound
http://www.pinehurstpictures.com
(413) 584-6200

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on 9/18/06 6:35 PM, David Olsson at davidolsson at yahoo.com wrote:

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> 
> 
> 
> Oh help, as Pooh would say.  I have 500 images, each 1024x768 in TIFF files.
> I'd like to create a looping video of the images at 25-30 frames per second,
> on DVD.  I have no trouble animating the images on the computer but I'm having
> a lot of trouble making a DVD.
>  
> I've used ImageMagick's convert tool, mplex, dvdauthor, ppm2yuv yuvscaler,
> mpeg2enc, and so on.  Everything looks good until I burn the DVD.  Playing the
> DVD, I get jerky, overlaid movement with the images taking up 1/2 the screen,
> against the upper left corner, and lots of pretty colored vertical and
> horizontal lines.
>  
> Any recommendations on techniques, tools, or someone to help me through this?
>  
> Thanks much!
> David Olsson, Easthampton
> 
> 
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