How do I turn 16:9 to 4:3 the right way?

[Matt Sandström]

Hey kafka, this is more and more confusing. Since i know you guys aren’t stupid you just gonna have to explain better. How can you not lose any resolution if you crop out 30 percent of the image? 16:9 material contains exactly the same amount of pixels to begin with…

/matt

[Martin Baker]

Depends whether you’re also downconverting or not:

16:9 HDV converted to 4:3 SD centre cutout:
1440px * 75% width = 1080 horizontal pixels which then get scaled DOWN into 720 horizontal pixels

16:9 SD anamorphic converted to 4:3 SD centre cutout:
720px * 75% width = 540 horizontal pixels which then get scaled UP into 720 horizontal pixels
i.e. you are losing resolution

Martin
Digital Heaven, London UK
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