This is a XQuery modul for BaseX for resizing images.

For installation get BaseX (Website) or BaseX (on github), go to your BaseX-Repository and

$ git clone git://github.com/arolle/basex-img-xq.git

The Java sources are included.

Tested with BaseX version 7.1.0-Snapshot, due to bugs only working with BaseX GUI. Not working with basex-web at present.

Import the modul in your XQuery-project via

import module namespace img = "http://basex.org/util/img";

and have fun resizing images.

The modul offers the following functions (as defined in basex-img-xq/wrapper.xq):

• img:scale($path, $width, $height, [$newPath, [$preserveRatio]] ) as xs:string
  scales image located in $path and returns the new location.

  • $newPath defaults to ""
    accepts any relative or absolute path as well as just the files name. e.g. Having given an image located in "/home/user/Desktop/image.jpg" The following values assigned to $newPath are equivalent

      "newName"
      "./newName"
      "./newName.jpg"
      "newName.jpg"
      same path as "/home/user/Desktop/newName.jpg"
    
      "/home/user/Desktop/"
      ""
      same path as "/home/user/Desktop/#HASH#.jpg"
    

    where #HASH# refers to md5("/home/user/Desktop/image.jpg")

  • $preserveRatio, defaults to true.
    true: the ratio of the given image and the scaled version stay the same. e.g. maximal height is $height, maximal width is $width
    false: scaled versions size is exactly $width * $height

• img:scaleNbase64($path, $width, $height, [$preserveRatio]) as xs:base64Binary
  scales (like img:scale) and returns the scaled versions base64 represenation

• img:base64($path) as xs:base64Binary
  returns the base64 represenation of the given image