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October 2008

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2008.10.01 03:03 "Image Orientation tag and rotating images", by Richard Nolde

2008.10.01 12:38 "Re: Image Orientation tag and rotating images", by Dr Michael J Chudobiak

2008.10.01 14:25 "Re: Image Orientation tag and rotating images", by Richard Nolde

2008.10.01 16:32 "Re: Image Orientation tag and rotating images", by Richard Nolde

2008.10.01 18:59 "Re: Image Orientation tag and rotating images", by Dr Michael J Chudobiak

2008.10.02 05:43 "Re: Image Orientation tag and rotating images", by Andrey Kiselev

2008.10.01 15:08 "Re: Image Orientation tag and rotating images", by Bob Friesenhahn

2008.10.01 16:02 "Re: Image Orientation tag and rotating images", by Edward Lam

2008.10.01 23:18 "Re: Image Orientation tag and rotating images", by Richard Nolde

2008.10.02 02:42 "Re: Image Orientation tag and rotating images", by Bob Friesenhahn

2008.10.01 16:02 "Re: Image Orientation tag and rotating images", by Edward Lam

Bob Friesenhahn wrote:
> It seems like hardly any software supports the orientation tag 
> correctly.  It seems that perhaps Photoshop does things correctly.

This is very true. On the other hand, the TIFF6 spec states that only 
the default value, 1 (ie. top-left), is required for baseline tiff 
readers. Over here, we've completely given up on trying to output .tiff 
files with non-default orientation values because of problems 
encountered by our users when using them with other packages.

Ultimately, there should be at least two output choices: one for 
baseline tiff files, and another for users who have tools that support 
the non-baseline values of the orientation tag.

Cheers,
-Edward