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Date Posted: 02:11:37 04/01/04 Thu
Author: Hert
Subject: Re: Lossless rotations
In reply to: Michel 's message, "Re: Lossless rotations" on 19:37:47 03/31/04 Wed

Hello Michel,

That is why some software product offer Lossless manipulation. A little surfing over the web learned me that there is a separate standard for lossless JPG. That made me wonder if you were considering adding lossless to your great library.

Kind regards,

Hert


>
>Hi Hert,
>
>The rotation itself is not lossy, but everytime you
>save a JPG you will lose quality. I recommend only
>saving to JPG after manipulations are done. As far as
>I know, the compress factor is only used when saving.
>Once an image is saved, it is then loaded "as is",
>independent of the original compression factor.
>
>Best regards,
>
>Michel
>
>>My customers ask me if I can implement a lossless JPG
>>rotation method. Is this possible, and if so how?
>>
>>I did not find any way of reading the current
>>compression factor, because it always defaults to 80.

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