[SOLVED] Error using -clip in command line on Debian.

[gabw]

Hi there!

I'm using ImageMagick Command Line tools to convert tiffs to png, resize them and remove the background by using clip (each tiff has an path)

Command without resizing:

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convert go.tif -alpha transparent -clip alpha.png

On my Ubuntu VM it works perfectly:

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Version: ImageMagick 6.6.9-7 2014-03-06 Q16 http://www.imagemagick.org
#================================
root@precise64:/var/www/sh/test# convert -list format | grep TIFF
      EPT  EPT       rw-   Encapsulated PostScript with TIFF preview
     EPT2  EPT       rw-   Encapsulated PostScript Level II with TIFF preview
     EPT3  EPT       rw+   Encapsulated PostScript Level III with TIFF preview
   GROUP4* TIFF      rw-   Raw CCITT Group4
     PTIF* TIFF      rw+   Pyramid encoded TIFF
     TIFF* TIFF      rw+   Tagged Image File Format (LIBTIFF, Version 3.9.5)
   TIFF64* TIFF      ---   Tagged Image File Format (64-bit) (LIBTIFF, Version 3.9.5)
#================================

But on my production server (a managed server without direct rights to install packages) the convert command exits with this error message:

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convert.im6: no decode delegate for this image format `go.tif#1' @ error/blob.c/BlobToImage/364.

Data of the prod. server:

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Version: ImageMagick 6.7.7-10 2014-03-08 Q16 http://www.imagemagick.org
#================================
$ convert -list format | grep TIFF
      EPT  EPT       rw-   Encapsulated PostScript with TIFF preview
     EPT2  EPT       rw-   Encapsulated PostScript Level II with TIFF preview
     EPT3  EPT       rw+   Encapsulated PostScript Level III with TIFF preview
   GROUP4* TIFF      rw-   Raw CCITT Group4
     PTIF* TIFF      rw+   Pyramid encoded TIFF
     TIFF* TIFF      rw+   Tagged Image File Format (LIBTIFF, Version 3.9.6)
   TIFF64* TIFF      ---   Tagged Image File Format (64-bit) (LIBTIFF, Version 3.9.6)
#================================

BTW: On all tested systems i got this Warning:

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convert.im6: go.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/768.

[fmw42]

That is just a warning about some text field that IM does not understand. Tiff has lots of those non-standard fields. This can be ignored.

With respect to the path issue, there has been a bug report about IM not recognizing non-alternating direction paths. Check the Bugs and Developers forums.

[fmw42]

The report is here viewtopic.php?f=2&t=25882

[gabw]

so there is no way to fix this at the moment?

Cause this error causes that the png's don't have a transparent background.

[fmw42]

Some bug fixes to -clip paths have been fixed and are now in the 6.8.9.6 beta. You can download that and try it.

[gabw]

The server hosters found the problem. The reason was that the package "libmagickcore5-extra" was missing. Now it works properly.

But thanks for your feedback!