Bug #23688 for Image-ExifTool: Divide by zero when calculating ScaleFactor35efl

Tue Nov 28 18:46:08 2006 jaybuffington [...] gmail.com - Ticket created

I'm getting a warning whenever I call ImageInfo on this particular image: http://www.imagestation.com/picture/sraid200/pbabf2f4143e90f85ffdd15cf036c7b99/f082c4c3.jpg.orig.jpg The warning: ValueConv ScaleFactor35efl: Illegal division by zero at /usr/lib/perl5/site_perl/5.8.5/Image/ExifTool/Exif.pm line 1766. See more info below. Thanks, Jay jay@webdev:~$ cat t.pl #!/usr/bin/perl use strict; use warnings; use Image::ExifTool; my $file_name = shift or die "Usage: $0 <file_name>"; my $exif_tool = Image::ExifTool->new(); my $exif_info = $exif_tool->ImageInfo( $file_name ); jay@webdev:~$ wget http://www.imagestation.com/picture/sraid200/pbabf2f4143e90f85ffdd15cf036c7b99/f082c4c3.jpg.orig.jpg --15:42:44-- http://www.imagestation.com/picture/sraid200/pbabf2f4143e90f85ffdd15cf036c7b99/f082c4c3.jpg.orig.jpg => `f082c4c3.jpg.orig.jpg' Resolving www.imagestation.com... 216.35.12.103 Connecting to www.imagestation.com|216.35.12.103|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1,378,864 (1.3M) [image/jpeg] 100%[=======================================================================================================>] 1,378,864 4.10M/s 15:42:44 (4.10 MB/s) - `f082c4c3.jpg.orig.jpg' saved [1378864/1378864] jay@webdev:~$ perl t.pl f082c4c3.jpg.orig.jpg ValueConv ScaleFactor35efl: Illegal division by zero at /usr/lib/perl5/site_perl/5.8.5/Image/ExifTool/Exif.pm line 1766. ValueConv ScaleFactor35efl: Illegal division by zero at /usr/lib/perl5/site_perl/5.8.5/Image/ExifTool/Exif.pm line 1766. jay@webdev:~$ perl -MImage::ExifTool -le 'print $Image::ExifTool::VERSION' 6.17 jay@webdev:~$

Wed Nov 29 08:27:01 2006 EXIFTOOL [...] cpan.org - Correspondence added

Subject:	Re: Divide by zero when calculating ScaleFactor35efl
From:	EXIFTOOL [...] cpan.org

Hi Jay, Thanks for the bug report. Interestingly, the error is due to a divide by infinity, not a divide by zero (which I was already protecting against). This is due to the 'inf' value for FocalPlaneXResolution and FocalPlaneYResolution in this image. (You should fix this.) I have added a check for 'inf' focal plane resolutions, and this update will appear in version 6.59 when it is released. Thanks again. - Phil

Wed Nov 29 08:27:06 2006 The RT System itself - Status changed from 'new' to 'open'

Wed Nov 29 10:45:22 2006 EXIFTOOL [...] cpan.org - Subject changed from (no value) to 'Divide by zero when calculating ScaleFactor35efl'

Wed Nov 29 10:45:23 2006 EXIFTOOL [...] cpan.org - TimeWorked changed from (no value) to '10'

Wed Nov 29 10:45:25 2006 EXIFTOOL [...] cpan.org - Given to EXIFTOOL

Wed Nov 29 10:45:26 2006 EXIFTOOL [...] cpan.org - Severity Normal added

Wed Nov 29 10:45:27 2006 EXIFTOOL [...] cpan.org - Broken in 3.60 added

Wed Nov 29 11:09:58 2006 jaybuffington [...] gmail.com - Correspondence added

Subject:	Re: [rt.cpan.org #23688] Re: Divide by zero when calculating ScaleFactor35efl
Date:	Wed, 29 Nov 2006 08:09:04 -0800
To:	bug-Image-ExifTool [...] rt.cpan.org
From:	"Jay Buffington" <jaybuffington [...] gmail.com>

Hi Phil, Thanks for your hard work on this module. I appreciate it. Jay On 11/29/06, via RT <bug-Image-ExifTool@rt.cpan.org> wrote: Show quoted text

> > <URL: http://rt.cpan.org/Ticket/Display.html?id=23688 > > > Hi Jay, > > Thanks for the bug report. > > Interestingly, the error is due to a divide by infinity, not a divide by zero (which I was already > protecting against). This is due to the 'inf' value for FocalPlaneXResolution and > FocalPlaneYResolution in this image. (You should fix this.) > > I have added a check for 'inf' focal plane resolutions, and this update will appear in version 6.59 > when it is released. > > Thanks again. > > - Phil > >

Tue Dec 19 20:29:35 2006 EXIFTOOL [...] cpan.org - Status changed from 'open' to 'resolved'

Tue Dec 19 20:29:38 2006 EXIFTOOL [...] cpan.org - Fixed in 6.57 added

Tue Dec 19 20:30:42 2006 EXIFTOOL [...] cpan.org - Fixed in 6.57 deleted

Mon Dec 25 17:03:13 2006 EXIFTOOL [...] cpan.org - Fixed in 6.66 added