Re: anybody use sips to change image dpi?

FROM : János
DATE : Sat Jul 08 01:54:13 2006

On Jul 7, 2006, at 4:54 PM, Michael B. Johnson wrote:

> I'm trying to use sips to turn some 200dpi full rez images into 72 
> dpi thumbnails (because of a bug in the NSImageCell), and this
>
> sips -s format jpeg -s formatOptions normal src.jpg --resampleWidth 
> 256 -s dpiHeight 72.0 -s dpiWidth 72.0 --out dst.jpg
>
> yields a 256 wide 200 dpi (if that was the source image's dpi).
>
> Anybody see what I'm missing?
>
>
> --> Michael B. Johnson, PhD
> --> http://homepage.mac.com/drwave (personal)
> --> http://xenia.media.mit.edu/~wave (alum)
> --> MPG Lead
> --> Pixar Animation Studios
>
>
>


We use sips here to convert from pdfs to jpeg.  Normal jpeg was not 
good.  We had to use the jpeg2000 format.

János


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