Image-Pro Premier Basic Training Course

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Image-Pro PremierBasic Training Course

• Part 5 - Automated Counting

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Automated Counting

• Manual measurements take time and are difficult
  to repeat reliably
• Objects in images often share intensity
  characteristics that are different from
  background or other object
• By identifying groups of pixels based on pixel
  information we can automatically measure objects

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Automated Counting

1. Segment image
2. Set up counting option
3. Select measurement types
4. Count
5. Display and save/export data

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Segmentation

• Divide pixels from the image into segments
  corresponding to
• Objects or one or more class
• Background
• Image-Pro can automatically identify bright or
  dark objects
• Manual segmentation give more flexibility

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Automatically Segmentation

• Go to Count/Size ribbon
• In Segment section select Bright or Dark
• Pixels identified according to the the selection
  are highlighted on the image

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Counting Options

• Display Options - Affect look of objects
• Segmentation and Count Options - Affect how
  objects are measured

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Connectivity
4 Connect
8 Connect










Only pixels sharing a side are touching
Any neighbouring pixel can be touching
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Clean Borders
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Clean Borders

• Surface Area - Partial objects not important,
  holes probably need to be ignored - Clean borders
  gt None
• Morphology - Only whole objects to be measured,
  holes likely part of the objects - Clean borders
  gt All
• Counting - Need to avoid double counting partial
  objects, 1/2 objects on borders - Clean borders gt
  2 Adjacent

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Measurement Types

• Same as manual measurements
• Select measurements relevant for object type
• Use measurements for filtering

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Displaying Data

• When objects are counted, measurement table is
  automatically shown
• Use Measurements Histogram to show spread
• Use classification to enhance display on Image

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Exporting Data

• Quick Save for Publication to save image with
  overlays
• Quick Save for Analysis to save image with
  measurements for review later
• Export function in Measurements table to save
  data to Excel, a text file or for importing into
  Premier