Name: durden
Owner: Natural History Museum
Description: The large image tiler
Created: 2015-06-08 16:08:30.0
Updated: 2015-06-08 16:09:00.0
Pushed: 2015-06-08 16:15:38.0
Homepage: null
Size: 180
Language: C++
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Durden is a command line program that will take a large image, and create the tiles necessary for the image to be viewed using various client software such as the Bigimage Google map image viewer.
Durden creates a number of directories (depending on the size of the image). These are numbered from 0 up. These folders represent the different zoom levels at which an image can be viewed. Zoom level 0 contains one image, 1 contains 4, 2 contains 16 and so on (2^(2*zoomlevel)).
Compilation is pretty simple. Firstly, you must ensure you have the ImageMagick (or GraphicsMagick if you prefer, although I have not yet tested this) development libraries installed. On a Debian based machine, this is as simple as running:
apt-get install libmagick++-dev
Next simply run the compile script included. This should create the “durden” executable. If you have any issues, please post them to me, and I will attempt to help.
./compile
Assuming the binary file has been created, you should now copy it to somewhere in your path, e.g. ~/bin or /usr/local/bin.
sudo cp durden /usr/local/bin
Durden accepts two or three command line arguments. The first is the filename of an image, the second is a folder to output the tiles to (the folder will be created if it does not already exist), and the final optional argument is a tile size. The default til e size is 256x256 pixels - as supported by the Google Maps API.
The example below will read in the image “image.tiff” and create a folder “output” into which a number of sub-folders will be created. The number of sub-folders that are created will depend on the size of image.tiff.
durden image.tiff output
Support requests should be posted to the Big Image issues queue, ensuring you specify “Durden” as the component. Unfortunately you will need a Drupal.org account before you can post a suppo rt request/bug report.
The name Durden is a reference to the character Tyler Durden in the book/film “Fight Club”. This software is an image tiler and is also “…free in all the ways that you are not.”