ImageMagick crashes on "random" .tif files

[fmw42]

How bizzare, the first time I ran identify -verbose C:\causes-crash.tif it caused a crash. I ran it a second time, it took about 25 seconds to output. But it worked.

Here you go: http://www.michellepace.com/indentify.v ... output.txt

Checking out the installation now... I'll do a install/re-install. Ja, I wish I could away with just mac at work. =)

Try the convert again.

convert image.tiff image.png

perhaps it is the png coder that is the problem.

convert -list format


PNG* PNG rw- Portable Network Graphics (libpng 1.4.8 )

what version do you get from this command?


What was the error message upon crashing, if it crashes again?

Could it be just a huge image and timing out on convert? Do you have enough memory to do the conversion on a large tiff file? If the tiff file is huge, then you might need a different tiff library for extra large tiff file? How big widthxheight is your tiff image? See the verbose info: you just generated. OK -- 7200x4909 is not too big. The verbose info: looks fine to me.

[fmw42]

You could try changing the polarity and/or endian (see your verbose info)

convert image.tiff -define quantum:polarity=min-is-black -endian MSB image.png

see http://www.imagemagick.org/Usage/formats/#tiff

[michelle]

erfff... no. I installed those packages but its still crashing on the same .tif files.

It doesn't not seem to be related to size. Nothing is bigger than 1MB. Some which fail are only 17KB.

My libpng version is 1.5.4... if I convert the .tif files to .jpg it crashes too making it unlikely its the png encoder.

[michelle]

I changed my ImageMagick command and re-processed the 16 files. All of them work.

My command (when things were crashing) was:
convert.exe some.tif -resize 20% some.pdf

Now with this command things don't crash anymore:
convert.exe some.tif -scale 2000 some.pdf

It's most bizzare. I can't think of anything else I changed. If things stop working, again, I'll post back. But I've tested this on a few more files and still no crashes.

Thanks very much Fred (and everyone else) for your replies and concerns. And now onto pdfs... thank-you. Michelle

[fmw42]

My command (when things were crashing) was:
convert.exe some.tif -resize 20% some.pdf

Are you on Windows? If so % must be escaped to %%

convert.exe some.tif -resize 20%% some.pdf


See all the differences at http://www.imagemagick.org/Usage/windows/

[michelle]

ha ha, yes! that is it. crazy, crazy windows! !

[fmw42]

ha ha, yes! that is it. crazy, crazy windows! !

Glad that was it.

FYI: Things often get resolved much faster when you show your exact command and identify your version of IM and platform in your first post for any given topic.