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Date Posted: 20:56:28 01/26/04 Mon
Author: Michel
Subject: Re: jpeg image must be gray scale or true color
In reply to: serge croise 's message, "jpeg image must be gray scale or true color" on 12:23:38 01/26/04 Mon


Hi Serge,

This is normal because JPEG files do not support images with palettes. This was like that in version 1 too. JPEG was designed for photographic like images.

To work around this, if the ImageFormat is not ifGray256 or ifTrueColor you need to use the TImageFormatTransform first to convert it. then you will be able to save as JPEG.

Best regard,

Michel



>with true color bmp files no problems
>if i try to read 256bit or 16bit bmps with envision, i
>get
>this message :
>jpeg image must be gray scale or true color
>did anybody habe this problem ?
>
>we use envision library version 2 now (with this
>problems)
>in the past we used an older version but we had
>problems
>with Windows XP Professional (bmp files could not be
>processed)
>thats why we had to buy version 2, but now we can not
>use
>256bit and 16bit bmp-files.
>
>thank you for helping me,
>serge croise

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