[Magick-bugs] TIFF PhotometricIntrepretation bug/behavior change

[michael.finch at sungard.com]

My version information is:

C:\temp\ghi\after>convert
Version: ImageMagick 6.3.3 03/14/07 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2007 ImageMagick Studio LLC

I think that a photometry setting of min-is-black is backwards, previous
versions gave min-is-white.  It seems that many image viewers don't
respect the PhotometricIntrepretation tag.  "Imaging for windows"  will
display the image the same way regardless of the
PhotometricIntrepretation tag.  Viewers that do pay attention to the
tag, will render these images as a negative.

Most of my image is zeros, my text is rendered as ones.  I want the
image that is displayed to be white with black letters.  I believe that
means my photometry setting should be min-is-white.



-----Original Message-----
From: omicronpersei8 at imagemagick.org
[mailto:omicronpersei8 at imagemagick.org] 
Sent: Thursday, April 19, 2007 2:52 PM
To: magick-bugs at imagemagick.org; Finch, Michael
Subject: Re: [Magick-bugs] TIFF PhotometricIntrepretation bug/behavior
change

> Version 6.3.3 of ImageMagick produces TIFF images with a 
> PhotometricIntrepretation tag of 1 (one).

Are you running 6.3.3-8, the latest release?  We're getting a
photometric interpretation of min-is-black and the images are displaying
properly (black on white).