Blob detection on images using Matlab
Outline:
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Generate a Laplacian of Gaussian filter.
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Build a Laplacian scale space, starting with some initial scale and going for n iterations:
- Filter image with scale-normalized Laplacian at current scale.
- Save square of Laplacian response for current level of scale space.
- Increase scale by a factor k.
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Perform nonmaximum suppression in scale space.
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Display resulting circles at their characteristic scales.
Two implementations performed for performance comparison:
- Upscaling filter size
- Downsampling image