Thursday, March 7, 2013

Analyze


Table of Contents

Analyze objects of interest is the last step of a usual pipeline of image processing and allows to quantify or describe image features...

The various steps of image processing (enhance brightness/contrast,  filters, subtract background, etc.) and of segmentation allow to get a clean and (almost) perfect partitioned image ready to the analysis of image features.


PART I: Distances, lengths, widths, etc.

  1. Using the Analyze > Analyze Particles... dialog box [Link]
  2. Measuring object's dimension
    1. Length  [Link]
    2. Width [Link
    3. Width Distribution
      • Part I using a EDM [Link]
      • Part II using stripes [Link]
    4. Feret's diameter [Link]
    5. Bounding box
      • Axis-aligned Bounding Box [Link]
      • Minimum Bounding Box  [Link]
  3. Influence of pixel connectivity 
  4. ...

PART II: Shape descriptors

TODO

PART III:Image Features Extraction

  1. Lines:
    1. The Hough Transform [Link]
    2. Hough Transform vs Radon Transform (sinogram) [Link]
  2. Circles
    1. Hough Transform [Link]
    2. Cross-correlation [Link]
  3. Blobs


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