Week 5

Information

The course for this week is about:

  • Binary morphology, how to make blobs grow, shrink, smoother or sharper
  • Non linear filters, binary morphology for gray scale images
  • Blob matching, how to match blobs and interpret this match

PDF

Exercise

  • Background generation 1 (10_Nonlinearfilters-12)
  • Do a background correction on the cheque image.

  • Background generation 2 (10_Nonlinearfilters-13)
  • Do a background correction on the cells image.

  • Blob matcher (11_Blobmatch-15)
  • Create a blob matcher and test different “Perimiter fill ratios” and “Fill sample sizes”.

Assignment

  • Opening and Closing(09_BinaryMorphology-13)
  • Complete the scripts:
    Assignment/Opening_and_closing/A/script.jls
    Assignment/Opening_and_closing/B/script.jls
    Assignment/Opening_and_closing/C/script.jls

    • A: Separate the ball and the bar
    • B: Separate the horizontal bars from the vertical bar
    • C: Remove the lines from the image without changing the balls
  • Blob matching(11_Blobmatch-18)
  • Complete the script: Assignment/Blob_Match/script.jls

    • Threshold the license plate
    • Extract each character of the license plate (ROI)
    • Use the loaded pattern matcher to find the best match.
    • Add the best match to $result

Video

Binary morphology

Blobmatcher


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