Go Imagick
![GoDoc](https://godoc.org/gopkg.in/gographics/imagick.v1/imagick?status.svg)
Go Imagick is a Go bind to ImageMagick's MagickWand C API.
We support two compatibility branches:
master (tag v2.x.x): >= ImageMagick 6.8.9
legacy (tag v1.x.x): <= ImageMagick 6.8.8
They map, respectively, through gopkg.in:
gopkg.in/gographics/imagick.v2/imagick
gopkg.in/gographics/imagick.v1/imagick
Install
Mac OS X
MacPorts
sudo port install ImageMagick
Ubuntu / Debian
sudo apt-get install libmagickwand-dev
Common
Check if pkg-config is able to find the right ImageMagick include and libs:
pkg-config --cflags --libs MagickWand
Then go get it:
go get gopkg.in/gographics/imagick.v1/imagick
Build tags
If you want to specify CGO_CFLAGS/CGO_LDFLAGS manually at build time, such as for building statically or without pkg-config, you can use the "no_pkgconfig" build tag:
go build -tags no_pkgconfig gopkg.in/gographics/imagick.v1/imagick
Examples
The examples folder is full with usage examples ported from C ones found in here: http://members.shaw.ca/el.supremo/MagickWand/
Quick and partial example
Since this is a CGO binding, Go GC does not manage memory allocated by the C API then is necessary to use Terminate() and Destroy() methods.
But objects of MagickWand, DrawingWand, PixelIterator and PixelWand are managed by GO GC if you create them by constructors.
package main
import "gopkg.in/gographics/imagick.v1/imagick"
func main() {
imagick.Initialize()
defer imagick.Terminate()
mw := imagick.NewMagickWand()
...
}
If you use struct literals, you should free resources manually:
package main
import "github.com/gographics/imagick/imagick"
func main() {
imagick.Initialize()
defer imagick.Terminate()
mw := imagick.MagickWand{...}
defer mw.Destroy()
...
}
Both methods are compatible if constructor methods used:
package main
import "github.com/gographics/imagick/imagick"
func main() {
imagick.Initialize()
defer imagick.Terminate()
mw := imagick.NewMagickWand()
defer mw.Destroy()
...
}
But you should NOT mix two ways of object creation:
package main
import "github.com/gographics/imagick/imagick"
func main() {
imagick.Initialize()
defer imagick.Terminate()
mw1 := imagick.MagickWand{...}
defer mw1.Destroy()
mw2 := imagick.NewMagickWand()
...
}
License
Copyright (c) 2013-2014, The GoGraphics Team
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of the organization nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL HERBERT G. FISCHER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.