ctypes based wrapper for ImageMagick
Due to the still existing demand for python bindings for ImageMagick I have created PythonMagickWand which is based on ctypes. It’s a very early version, but should work to resize images for example. Here is a snipped from the doctest:
>>> from PythonMagickWand import *
After that, you have to initialize MagickWand. This call might be
moved to the PythonMagickWand module, but i have to check if there
are poblems with multiple calls to this method or how to handle that.>>> MagickWandGenesis()
Now we are ready to create a new wand
>>> wand = NewMagickWand()
and to load an image from a file.
>>> MagickReadImage(wand,”sample.jpg”) #doctest: +ELLIPSIS
Let’s resize the image
>>> MagickScaleImage(wand,200,200) #doctest: +ELLIPSIS
and save it to a new file.
>>> MagickWriteImage(wand,”out.png”) #doctest: +ELLIPSIS
If you don’t work on Mac OS X with macport, you will have to adjust the path to the ImageMagick library. I’ll fix this in the future. For more details see the doctests or execute “pydoc PythonMagickWand”.
linux:
_magick = ctypes.CDLL(’/usr/lib/libWand.so.9′)
>>> from PythonMagickWand import *
/usr/lib/libWand.so.9: undefined symbol: MagickSetIteratorIndex
/usr/lib/libWand.so.9: undefined symbol: MagickGetIteratorIndex
/usr/lib/libWand.so.9: undefined symbol: MagickGetExceptionType
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageOrientation
/usr/lib/libWand.so.9: undefined symbol: MagickOptimizeImageLayers
/usr/lib/libWand.so.9: undefined symbol: MagickMergeImageLayers
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageClipMask
/usr/lib/libWand.so.9: undefined symbol: MagickCompareImageLayers
/usr/lib/libWand.so.9: undefined symbol: MagickVignetteImage
/usr/lib/libWand.so.9: undefined symbol: MagickUniqueImageColors
/usr/lib/libWand.so.9: undefined symbol: MagickTransverseImage
/usr/lib/libWand.so.9: undefined symbol: MagickTransposeImage
/usr/lib/libWand.so.9: undefined symbol: MagickSketchImage
/usr/lib/libWand.so.9: undefined symbol: MagickShadeImage
/usr/lib/libWand.so.9: undefined symbol: MagickResetImagePage
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageOrientation
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageOpacity
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageMatte
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageInterpolateMethod
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageClipMask
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageAlphaChannel
/usr/lib/libWand.so.9: undefined symbol: MagickSegmentImage
/usr/lib/libWand.so.9: undefined symbol: MagickRecolorImage
/usr/lib/libWand.so.9: undefined symbol: MagickRandomThresholdImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickRandomThresholdImage
/usr/lib/libWand.so.9: undefined symbol: MagickPolaroidImage
/usr/lib/libWand.so.9: undefined symbol: MagickPingImageFile
/usr/lib/libWand.so.9: undefined symbol: MagickPingImageBlob
/usr/lib/libWand.so.9: undefined symbol: MagickPaintOpaqueImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickPaintFloodfillImage
/usr/lib/libWand.so.9: undefined symbol: MagickOrderedPosterizeImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickOrderedPosterizeImage
/usr/lib/libWand.so.9: undefined symbol: MagickNormalizeImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickLinearStretchImage
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageRange
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageLength
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageMatte
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageChannelRange
/usr/lib/libWand.so.9: undefined symbol: MagickExtentImage
/usr/lib/libWand.so.9: undefined symbol: MagickEqualizeImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickDistortImage
/usr/lib/libWand.so.9: undefined symbol: MagickContrastStretchImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickContrastStretchImage
/usr/lib/libWand.so.9: undefined symbol: MagickCompositeImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickClutImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickClutImage
/usr/lib/libWand.so.9: undefined symbol: MagickClipImagePath
/usr/lib/libWand.so.9: undefined symbol: MagickAddNoiseImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickAdaptiveSharpenImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickAdaptiveSharpenImage
/usr/lib/libWand.so.9: undefined symbol: MagickAdaptiveResizeImage
/usr/lib/libWand.so.9: undefined symbol: MagickAdaptiveBlurImageChannel
/usr/lib/libWand.so.9: undefined symbol: MagickAdaptiveBlurImage
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageInterpolateMethod
/usr/lib/libWand.so.9: undefined symbol: MagickDestroyImage
/usr/lib/libWand.so.9: undefined symbol: MagickGetBackgroundColor
/usr/lib/libWand.so.9: undefined symbol: MagickSetSizeOffset
/usr/lib/libWand.so.9: undefined symbol: MagickSetPointsize
/usr/lib/libWand.so.9: undefined symbol: MagickSetOrientation
/usr/lib/libWand.so.9: undefined symbol: MagickSetInterpolateMethod
/usr/lib/libWand.so.9: undefined symbol: MagickSetImageProperty
/usr/lib/libWand.so.9: undefined symbol: MagickSetGravity
/usr/lib/libWand.so.9: undefined symbol: MagickSetFont
/usr/lib/libWand.so.9: undefined symbol: MagickSetDepth
/usr/lib/libWand.so.9: undefined symbol: MagickSetAntialias
/usr/lib/libWand.so.9: undefined symbol: MagickGetSizeOffset
/usr/lib/libWand.so.9: undefined symbol: MagickGetAntialias
/usr/lib/libWand.so.9: undefined symbol: MagickDeleteImageProperty
/usr/lib/libWand.so.9: undefined symbol: MagickDeleteOption
/usr/lib/libWand.so.9: undefined symbol: MagickGetInterpolateMethod
/usr/lib/libWand.so.9: undefined symbol: MagickGetType
/usr/lib/libWand.so.9: undefined symbol: MagickGetGravity
/usr/lib/libWand.so.9: undefined symbol: MagickGetPointsize
/usr/lib/libWand.so.9: undefined symbol: MagickGetOptions
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageProperties
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageProperty
/usr/lib/libWand.so.9: undefined symbol: MagickGetImageProfiles
/usr/lib/libWand.so.9: undefined symbol: MagickGetFont
/usr/lib/libWand.so.9: undefined symbol: DrawResetVectorGraphics
/usr/lib/libWand.so.9: undefined symbol: DrawGetExceptionType
/usr/lib/libWand.so.9: undefined symbol: PixelSetMagickColor
/usr/lib/libWand.so.9: undefined symbol: PixelSetColorFromWand
/usr/lib/libWand.so.9: undefined symbol: ClonePixelWands
/usr/lib/libWand.so.9: undefined symbol: ClonePixelWand
/usr/lib/libWand.so.9: undefined symbol: IsMagickTrue
/usr/lib/libWand.so.9: undefined symbol: MagickOpenStream
/usr/lib/libWand.so.9: undefined symbol: ListMagickOptions
/usr/lib/libWand.so.9: undefined symbol: RelinquishMagickMatrix
/usr/lib/libWand.so.9: undefined symbol: AcquireMagickMatrix
/usr/lib/libWand.so.9: undefined symbol: MagickCoreTerminus
/usr/lib/libWand.so.9: undefined symbol: MagickCoreGenesis
/usr/lib/libWand.so.9: undefined symbol: FormatMagickCaption
/usr/lib/libWand.so.9: undefined symbol: DrawGradientImage
/usr/lib/libWand.so.9: undefined symbol: AcquireDrawInfo
/usr/lib/libWand.so.9: undefined symbol: AcquireOneMagickPixel
/usr/lib/libWand.so.9: undefined symbol: FormatMagickTime
/usr/lib/libWand.so.9: undefined symbol: FormatMagickSize
/usr/lib/libWand.so.9: undefined symbol: QueryMagickColorname
/usr/lib/libWand.so.9: undefined symbol: ClearMagickException
>>> MagickWandGenesis()
>>> wand = NewMagickWand()
>>> MagickReadImage(wand,�sample.jpg�)
File “”, line 1
MagickReadImage(wand,�sample.jpg�)
^
SyntaxError: invalid syntax
>>> MagickReadImage(wand,”sample.jpg”)
>>> MagickScaleImage(wand,200,200)
>>> MagickWriteImage(wand,”out.png”)
>>> MagickReadImage(wand,”Badge_Sample_3.pdf”)
>>>
carl@asus17:~/temp$
out.png looks good.
hoping to convert the pdf to a png. after about 5 secconds, it dropped me out of python. looks like I have a memory problem:
carl@asus17:~/temp$ free -m
total used free shared buffers cached
Mem: 1011 955 55 0 109 388
-/+ buffers/cache: 457 553
Swap: 964 0 964
I’ll reboot and see if it is any better.
Comment by CarlFK — December 27, 2007 @ 19:15
from PythonMagickWand import *
MagickWandGenesis()
wand = NewMagickWand()
MagickReadImage(wand,”Badge_Sample_3.pdf”)
MagickWriteImage(wand,”badge.png”)
it works!
carl@asus17:~/temp$ free -m
total used free shared buffers cached
Mem: 1011 513 497 0 26 263
-/+ buffers/cache: 223 787
Swap: 964 0 964
too bad it takes 8 seconds, wich may be too long for what I need. but I may be able to make a smaller pdf. (not your problem)
Comment by CarlFK — December 27, 2007 @ 20:13
woo! my quest is over! a more realistic test of the kind of pdf I want to use resulted in .4 seconds on my p4-1.7ghz.
What a nice christmas pressent.
Thanks again.
Comment by CarlFK — December 27, 2007 @ 21:19
Having trouble:
Python 2.5.1 (r251:54863, Jan 3 2008, 23:31:31)
[GCC 3.4.6 20060404 (Red Hat 3.4.6-9)] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
>>> import ctypes
>>> _magick = ctypes.CDLL(”/usr/lib/libWand.so.6″)
>>> from PythonMagickWand import *
Traceback (most recent call last):
File “”, line 1, in
File “/home/webadmin/PythonMagickWand.py”, line 79, in
_magick.MagickWandGenesis()
File “/var/tmp/python2.5-2.5.1-root/usr/lib/python2.5/ctypes/__init__.py”, line 353, in __getattr__
File “/var/tmp/python2.5-2.5.1-root/usr/lib/python2.5/ctypes/__init__.py”, line 358, in __getitem__
AttributeError: /usr/lib/libWand.so.6: undefined symbol: MagickWandGenesis
>>>
Any suggestions?
Ramon
Comment by Ramon — January 5, 2008 @ 7:34
Hello.
Are the Pixel Iterator Methods implemented?
Comment by kurt — January 11, 2008 @ 16:38
See http://www.procoders.net/?p=67 for more informations about PythonMagickWand
Comment by Achim — January 13, 2008 @ 15:38
[...] Imagemagick i MagickWand [...]
Pingback by PÃcsels, bytes i alguna cosa més … » Blog Archive » Llibreries per imatges, per python — January 14, 2008 @ 17:34
koopa freelive # python PythonMagickWand.py
Traceback (most recent call last):
File “PythonMagickWand.py”, line 76, in
_magick = ctypes.CDLL(’/usr/lib/libWand.so.10′)
File “/usr/lib/python2.5/ctypes/__init__.py”, line 340, in __init__
self._handle = _dlopen(self._name, mode)
OSError: /usr/lib/libWand.so.10: undefined symbol: ClutImageChannel
Use ImageMagick6.3.5 / and Gentoo and PythoMagick0.7 installed
What is happend?
Comment by Joao Rego — February 12, 2008 @ 2:44
Thanks for good work for python and magickwand !!
I tried PythonMagickWand.py in Windows XP and Debian Linux.
It works fine with following Library path
* WinXP : r“C:\Program Files\ImageMagick-6.3.9-Q16\CORE_RL_wand_.dll�
*Debian Linux : “/usr/lib/libWand.so.9″
I also make patch for try correct library path for each(mac, win, linux) os.
go to following link, get “os_free.zip” and apply it to “PythonMagickWand.py”
http://web.suapapa.net:8080/wordpress/?p=122
Comment by suapapa — March 17, 2008 @ 11:19
Hey, are you going to develop this binding set further? It would be kind of neat.
Comment by qubodup — April 6, 2008 @ 5:18
It works well for me, keep up this great work!
Now i just have to fight with the non-pythonic MagickWand API
Comment by Werner Hartnagel — May 21, 2008 @ 12:04
It’s cool, I had to use the patch to make it work in windows. + replaced all the exception outputs with pass. Would be nice to have a more pythonic wrapper
Comment by Stu — November 10, 2008 @ 12:17
Some more examples would be really cool - like how to get image dimensions
Comment by Stu — November 10, 2008 @ 19:35
[...] page. it may not even be saved to the DB yet. the new ImageMagick bindings should do what I need: http://www.procoders.net/?p=39 Carl [...]
Pingback by convert pdf to png - Page 2 | keyongtech — January 22, 2009 @ 5:16
[...] support for icon files and stumpled upon my old friend ImageMagick. I’ve found that there are Python bindings for the MagickWand interface (the C API). Yet, those bindings are incomplete, ugly and not actively maintained. I’ve found [...]
Pingback by Benjamin Schweizer. Python-MagickWand or How to Work With Icons. — June 18, 2009 @ 8:47
There’s an alternate implementation of the MagickWand interface, see http://benjamin-schweizer.de/python-magickwand-or-how-to-work-with-icons.html
Comment by Benjamin Schweizer — June 18, 2009 @ 8:55
PixelSetColor function messed. You can add binding like this:
—-
…
# PixelSetColor
try:
_magick.PixelSetColor.restype = None
_magick.PixelSetColor.argtypes = (PixelWand, ctypes.POINTER(ctypes.c_char))
except AttributeError,e:
print e
else:
PixelSetColor = _magick.PixelSetColor
…
—-
Comment by Maxim Polshcha — June 23, 2009 @ 11:24
[...] PythonmagickWand, http://www.procoders.net/?p=39 (’Due to the still existing demand for python bindings for ImageMagick I have created PythonMagickWand which is based on ctypes‘) [...]
Pingback by Traitement d’images avec python: python-magic, pyexiv2, PIL, ReportLab, Motmot, Pythonmagick, magickpy « Le blog de Patrick Vergain — August 21, 2009 @ 15:35
I’ve done some changes on animation and image sequences support. If somebody needs mail me maxp_at_sterch.net
Comment by Maxim Polscha — September 8, 2009 @ 15:51