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Date Posted: 07:02:31 05/27/04 Thu
Author: Michel
Subject: Re: Tiff to Jpeg
In reply to: josephs 's message, "Tiff to Jpeg" on 12:03:07 05/19/04 Wed


Hi Josephs,

Yes this is normal. JPG is optimized for true color images, so a Group iv black and white image will always be much smaller than a corresponding JPG in true color.

You can try changing the TJpegGraphic.SaveQuality to a lower value which may help a bit.

If these are images to be displayed on the web, you use PNG format instead which will be larger than tiff group iv but smaller than JPG.

Best regards,

Michel

>Hi:
>
> I am trying to convert a multipage(3 page) tiff
>image to jpeg, with CCITT Group 4 compression. I am
>using TTiffGraphic to Load the file and convert. The
>problem is that the original tiff file is 59kb, where
>as in conversion, each page is 272, 339, 217 kbs
>respectively. Is this the way it is supposed to be?
>Or, is it because the compression is not happening? I
>would appreciate if you can just post a sample code of
>conversion, where the compression is also involved.
>One other thing is that the second and third page
>after conversion looks like in landscape orientation.
>How can I set that right? Thank you very much in
>advance for any help.

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