Bug #36880 for Image-ExifTool:

Fri Jun 20 13:50:21 2008 jlaragy [...] cas.org - Ticket created

Subject:
Date:	Mon, 16 Jun 2008 14:55:57 -0400
To:	<bug-Image-ExifTool [...] rt.cpan.org>
From:	"Laragy, James" <jlaragy [...] cas.org>

Download ie800168x_0011.tif
image/tiff 105.2k

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Download ie800168x_0010.tif
image/tiff 93.1k

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Download pr800205b_0002.tif
image/tiff 751.3k

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PERL VER: This is perl, version 5.005_02 built for sun4-solaris OS: SunOS srv22 5.9 Generic_122300-17 sun4u sparc SUNW,Sun-Fire EXIF VER: exifTool.pm version 7.00 Also tried with Windows XP, exiftool-7.32.zip COMMANDLINE: exiftool -FileTiff -ImageWidth -ImageHeight -XResolution -YResolution <filename> ISSUE: exiftool sometimes returns incorrect resolution and dimesions for tiff files The tiffinfo program returns returns correct values. Please note three examples tiff graphics attached. ie800168x_0010.tif and ie800168x_0011.tif are really 1200 dpi pr800205b_0002.tif is really 710 x 452 pixels Thanks, Jim Laragy

Fri Jun 20 14:39:34 2008 EXIFTOOL [...] cpan.org - Correspondence added

Thanks for the bug report, but in fact this is FAQ number 3: http://owl.phy.queensu.ca/~phil/exiftool/faq.html#Q3 There is contradictory information in your images: Show quoted text

>exiftool ~/Desktop/tiff_samples -imagewidth -imageheight -xresolution -yresolution -a -

G1 ======== /Users/phil/Desktop/tiff_samples/ie800168x_0010.tif [IFD0] Image Width : 3123 [IFD0] Image Height : 4951 [IFD0] X Resolution : 1200 [XMP-tiff] X Resolution : 500 [Photoshop] X Resolution : 1200 [IFD0] Y Resolution : 1200 [XMP-tiff] Y Resolution : 500 [Photoshop] Y Resolution : 1200 ======== /Users/phil/Desktop/tiff_samples/ie800168x_0011.tif [IFD0] Image Width : 3801 [IFD0] Image Height : 4774 [IFD0] X Resolution : 1200 [XMP-tiff] X Resolution : 300 [Photoshop] X Resolution : 1200 [IFD0] Y Resolution : 1200 [XMP-tiff] Y Resolution : 300 [Photoshop] Y Resolution : 1200 ======== /Users/phil/Desktop/tiff_samples/pr800205b_0002.tif [IFD0] Image Width : 710 [XMP-tiff] Image Width : 2632 [IFD0] Image Height : 452 [XMP-tiff] Image Height : 1655 [IFD0] X Resolution : 300 [XMP-tiff] X Resolution : 300 [Photoshop] X Resolution : 300 [IFD0] Y Resolution : 300 [XMP-tiff] Y Resolution : 300 [Photoshop] Y Resolution : 300

Fri Jun 20 14:39:36 2008 The RT System itself - Status changed from 'new' to 'open'

Mon Jun 23 07:16:16 2008 EXIFTOOL [...] cpan.org - Status changed from 'open' to 'rejected'

Mon Jun 23 09:04:06 2008 EXIFTOOL [...] cpan.org - Correspondence added

Subject:

Incorrect image size/resolution values

I thought about this some more, and decided that while this is not a bug, I could improve the situation by reducing the priority of the XMP and Photoshop size/resolution tags since they may not be as reliable as the others. ExifTool 7.34 will contain this update, which will cause your expected values to be displayed by default. Note that you can always specify which values to extract, and in this case using "-IFD0:imagewidth" etc instead of "-imagewidth" will give you the same information as tiffinfo. (tiffinfo can not be used to extract either the XMP or Photoshop size/resolution tags which also exist in these images.)

Mon Jun 23 09:04:18 2008 The RT System itself - Status changed from 'rejected' to 'open'

Tue Jun 24 10:26:26 2008 jlaragy [...] cas.org - Correspondence added

Subject:	RE: [rt.cpan.org #36880] Incorrect image size/resolution values
Date:	Tue, 24 Jun 2008 10:23:02 -0400
To:	<bug-Image-ExifTool [...] rt.cpan.org>
From:	"Laragy, James" <jlaragy [...] cas.org>

That seems like a sensible improvement for the real world of occasional bad metadata Thanks! Jim Laragy American Chemical Society Show quoted text

-----Original Message----- From: Phil Harvey via RT [mailto:bug-Image-ExifTool@rt.cpan.org] Sent: Monday, June 23, 2008 9:04 AM To: Laragy, James Subject: [rt.cpan.org #36880] Incorrect image size/resolution values <URL: http://rt.cpan.org/Ticket/Display.html?id=36880 > I thought about this some more, and decided that while this is not a bug, I could improve the situation by reducing the priority of the XMP and Photoshop size/resolution tags since they may not be as reliable as the others. ExifTool 7.34 will contain this update, which will cause your expected values to be displayed by default. Note that you can always specify which values to extract, and in this case using "-IFD0:imagewidth" etc instead of "-imagewidth" will give you the same information as tiffinfo. (tiffinfo can not be used to extract either the XMP or Photoshop size/resolution tags which also exist in these images.)

Mon Oct 27 09:23:36 2008 EXIFTOOL [...] cpan.org - Status changed from 'open' to 'resolved'

Mon Oct 27 09:24:08 2008 EXIFTOOL [...] cpan.org - Fixed in 7.50 added