From: ccox@adobe.com (Chris Cox)
Date: Fri, 05 Dec 2003 13:23:11 -0800
Subject: [Tiff] Double Precision TIFF images
In-Reply-To: <3FCFA5AF.7070307@pobox.com>
References: <6.0.1.1.0.20031204190634.01b771f0@pop.via-rs.com.br>
 <3FCFA5AF.7070307@pobox.com>
Message-ID: <p05210600bbf6a7a1c8f7@[153.32.48.223]>

At 4:22 PM -0500 12/4/03, Frank Warmerdam wrote:
>Antonio Scuri wrote:
>>
>>   Frank,
>>
>>   Could you check that image? The Photometric is BlackIsZero, but I 
>>guess it should be RGB.
>>
>>   It is interesting that BitsPerSample and SampleFormat have 3 
>>values, and the file size is also compatible with a RGB double 
>>image.
>
>Antonio,
>
>You are correct that the photometric interpretation is set wrong.  It
>should be RGB.  However, MINISBLACK is also a legitimate photometric
>interpretation for multi-sample files ... it just obscures how the
>samples can be treated in combination to form colors.

Yes - when I first opened the image it came in as grayscale with 2 
alpha channels.

Chris

