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Edge Detector Dude Released

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I’ve written yet another PyGTK application in the near past for the Digital Image Segmentation course of the university.

You ask me what it really is?

Edge Detector Dude is a simple image manipulation application written in Python using PyGTK. It presents you the Sobel edge-detected and the gradient-directed versions of the input image. The pixels of the gradient-directed image is computed by denoting the angle of the gradient of the pixel and mapping this value as a grayscale color.

Edge Detector Dude is more accurately a front end that uses the accompanying gradient utility to process the input image and visualize its result images.

gradient is written in C using the Allegro game programming library.

Let’s see this dude:

edge-detector-dude

I’m proud of this GUI design because I think it’s very usable, however there are several things that could be improved:

  • Add a “View” button to view images. Currently the statausbar mentions that images can be viewed by double clicking on their names, but it’s not very eye-catching and novices may miss it.
  • Add support for other file formats. For some strange reason Allegro only handled BMPs, however according to the documentation it should handle a wide variety of image formats.
  • Replace the gradient-directed image with something nicer. It’s really ugly, no questions, but I had no choice because that was the exact task to be done.

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