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[filmscanners] RE: JPEG2000 > Paul
>-----Original Message-----
>From: filmscanners_owner@halftone.co.uk
>
>Thanks for the link Robert. I've just tried it. It compressed a 55mb
>Photoshop file into a lossless 10mb .jp2 file.
>Is it really lossless ? If so, people need to know about this.
If you are compression a 'regular' photograph then you won't get a
compression ratio of 1:5. For a 24-bit RGB image you can expect around 1:2.
I have just tried it out myself and I get a compression ratio of about 1:2.
Robert
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