Legacy ImageMagick Discussions Archive

Or... sorry... You didn't mean a cygwin package, but a cygwin compatible build of ImageMagick, didn't you?
Correct, I'm talking about the pre-built IM binaries for Cygwin on this site (see the URL in the first post). The IM package on the Cygwin servers is horribly out-of-date, and I had built my ...

Ah ha! I see the Cygwin build was updated last night to 6.7.3-8, and it looks like the build options were fixed! Hooray!

DELEGATES bzlib fpx freetype jbig jpeg jng jp2 lcms2 png tiff x11 xml zlib

J2C* JP2 rw- JPEG-2000 Code Stream Syntax
JBG* JBIG rw+ Joint Bi-level Image experts Group ...

It doesn't show up in the configure options either:

DELEGATES freetype mpeg x11 zlib

My older (but working) copy does, so I'll switch back to that:

DELEGATES bzlib freetype jbig jpeg jng png tiff x11 zlib

What's the best way to bring this to the attention of the maintainer of the Cygwin ...

Ah, I see. The Cygwin package is dated September 17, while the 6.7.3-7 packages are from November 19. This is the first time I've downloaded the precompiled Cygwin package, so I don't know if the lack of JPEG, etc. support is abnormal or simply an accepted characteristic of the Cygwin build.

Just to make sure I'm not losing my mind... can someone confirm if the latest pre-compiled IM binaries for Cygwin don't seem to include JPEG, PNG or TIFF support? Running 'ldd' on the binaries does not show any missing DLLs.

http://www.imagemagick.org/download/binaries/ImageMagick-i686-pc-cygwin ...

Yeah, I think there is something about shared libs/DLL's with Cygwin and Windows that I'm not quite grasping yet. If I do a "./configure --disable-shared --without-perl" and install the resulting build, everything seems to work fine. Of course, the binaries are each about 8 MB, but whatever...

Oh great, if I google for "problems building imagemagick for cygwin", this thread turns up as the first hit for me.

Took a bit of fiddling to get PerlMagick to build (it did not know to include -lz or -lgomp), but 6.5.6 is installed now. I'm still getting the same error though:


$ convert -version
Version: ImageMagick 6.5.6-8 2009-10-04 Q16 OpenMP http://www.imagemagick.org
Copyright: Copyright (C) 1999-2009 ...

I noticed the Cygwin distro of IM has all the .a files renamed as .dll, which I tried with 6.5.6, but that didn't help. I'll try building it from source next... hopefully getting gcc up and running on Cygwin won't be too difficult.

Since the Cygwin package of IM is stuck at 6.4.0 from almost 18 months ago, I decided to install the ImageMagick-i686-pc-cygwin.tar.gz binary package. It went into /usr/local/ImageMagick-6.5.6/, and $MAGICK_HOME is set appropriately. Yet the "convert logo: logo.gif" test case does not work. I ran ...

You may be able to speed up things further with large JPEGs by adding a -size argument to ask the library to reduce the amount returned from the file.

Hi, Anthony. I use "-size" when resizing down large 12- and 16-megapixel JPEGs, but it does not seem to make much difference with 400x600 source ...

Ah, so the new "-path" option specifies the output directory then? Thanks, I'll check out the new beta once it is available!

I don't know if this is on the "todo" list, but it would be great to have more format specifiers for output filenames too, e.g.: %f for the input filename (without extension ...

I have a script that takes small images (450x300) and creates a square thumbnail for each one via a resize and a crop. Traditionally, I've been using a for-loop in a /bin/sh script:


$ time for i in *.jpg ; do convert -gravity northwest $i -resize 45x45 -crop 30x30+0+0 thumbs/$i ; done

real 2m26 ...