Legacy ImageMagick Discussions Archive

Hello,

Using ImageMagick 6.9.0 I got the number the pages of a multipaged tiff using the command this returned me for a specific tiff "602PS". Now after upgrading to version 6.9.1 the same command results me
"602602602602602602602...(and so on)PS".

Why is this returning the number of pages multiple times? Am I missing something or is there a bug in the newest version?

Thanks

I don't know when it changes, but even if I use older version, only "%n" was special - "%n\n" or even "%n " produced multiple output. Probably developer has changed it for keeping consistency.

[EDIT]
I checked 6.7.6-3 on Cygwin, 6.5.4-7 on CentOS.

And for tiff, check this also. viewtopic.php?f=1&t=28045

For me in the 6.9.0 version it always produced the output only once, nevertheless if I use "%n", "%n\n" or "%n ".

It seems that for the latest version 6.9.1 it produces its output once per page...

just use identify on the first page

fmw42 wrote:just use identify on the first page

Code: Select all

identify -format "%n\n" yourimage.tiff[0]

It returns always 1 (in 6.9.1-10 on Windows)

Yes, you are right. In unix one could do:
to get just the last value. Sorry I do not know Windows equivalent.

You could request a change in the Developers forum so that it only prints out the number of images in the current sequence once.

In some environment or older version, I have experienced identify generate extra newline at the end. So "head -1" is safer.
In Windows CMD (without extra install), it becomes tricky,

> identify image.tiff | findstr /v /r "^$" | find /c /v ""

(findstr is for sure to remove an empty line.)

Its unix equivalent is something like

% identify image.tiff | grep -v "^$" | wc -l

mundi wrote:For me in the 6.9.0 version it always produced the output only once, nevertheless if I use "%n", "%n\n" or "%n ".

It seems that for the latest version 6.9.1 it produces its output once per page...

Just curious what is your OS and exact version of your ImageMagick?
(I tested with 6.9.0-10 and it behaves the same as current 6.9.1-10.)

And what output is generated from your 6.9.0 for the following command? If it generate only 1 line for multipage tiff, it was bug on that version. Current behaviour would be sane, even though it is inconvenient.

IM 6.9.1.10 Q16 Mac OSX SnowLeopard


3 70x46+0+0
3 70x46+0+0
3 70x46+0+0

Thanks for the hints.

What I did now is that I wrote a small powershell script: This gives me the number of pages.

Thanks for your help