IMAGE%20PLUGINS%20FOR%20GIMP

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IMAGE PLUGINS FOR GIMP

• By Vera Kukic
• Supervisors Shaun Bangay and Adele Lobb

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Image Plugins for GIMP

• The GIMP is the acronym for GNU Image
  Manipulation Program.
• It is a freely distributed piece of software
  suitable for such tasks as photo retouching,
  image composition and image authoring.

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Image Plugins for GIMP

• GIMP uses external modules called plugins
• Plugins can
• Load and save images
• Run effects filters
• Interface other programs with GIMP
• Scanning software
• Ray tracer
• Other image manipulation packages

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Image Plugins for GIMP

• There are many things that can be accomplished
  with plugins
• Colouring Greyscale Images
• Image Inpainting
• Simulating Decorative Mosaics

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Colouring Greyscale Images

• The inspiration for my first plugin comes from
  the paper Transferring Color to Greyscale
  Images
• General technique for colouring greyscale images
• Transfer colour between the source (colour image)
  and the destination (greyscale image)

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Colouring Greyscale Images

• Minimizes the human effort
• Instead of choosing colours from RGB palette the
  entire colour mood is transferred from the source
  to the destination
• This is done by matching the luminance and the
  texture information

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Colouring Greyscale Images
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Colouring Greyscale Images
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Image Inpainting

• The second plugin refers to the Image
  Inpainting paper
• Image Inpainting is a technique used for
  modifying an image in an undetectable form.

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Image Inpainting

• The application of this plugin
• Restoration of damaged paintings and photographs
• Removal of super imposed texts
• Removal / replacement of selected objects

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Image Inpainting
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Image Inpainting
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Image Inpainting
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Simulating Decorative Mosaics

• The last plugin that I will be attempting comes
  from the Simulating Decorative Mosaics paper.
• Tile mosaics are images made up of small
  polygonal coloured patches
• This method uses tiles to reproduce images

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Simulating Decorative Mosaics

• The technique relies on the hardware to find
  analogous minimal-energy configurations to tile
  the mosaic.

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Simulating Decorative Mosaics
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Simulating Decorative Mosaics
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Simulating Decorative Mosaics
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Simulating Decorative Mosaics
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Design and Implementation

• GIMP - Linux
• Use C to develop the plugins
• GIMP is
• Open source
• Well documented
• A lot of reference material available
• Easy to use

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Design and Implementation

• GIMP interfaces with plugins
• The position of the plugin is defined within
  itself
• Example
• (char ) "ltImagegt/Filters/Colors/ColourTransfer"

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Extensions

• The method of colouring greyscale images can be
  extended to
• Work on small images
• Colour images with similar tones

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Extensions

• Image inpainting can further be improved by
• Improving the inpainting algorithm, allowing it
  to reproduce large textured regions.

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Extensions

• Simulating decorative mosaics can be extended
  further by
• Using higher order moments of each voronoi region
• Filling in gaps between tiles by using small tile
  chips

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Questions
?