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Image-Pro Premier Basic Training Course

Image-Pro Premier Basic Training Course. Part 5 - Automated Counting. 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

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Image-Pro Premier Basic Training Course

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  1. Image-Pro PremierBasic Training Course • Part 5 - Automated Counting

  2. 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

  3. Automated Counting • Segment image • Set up counting option • Select measurement types • Count • Display and save/export data

  4. 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

  5. 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

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

  7. Connectivity 4 Connect 8 Connect Only pixels sharing a side are touching Any neighbouring pixel can be touching

  8. Clean Borders

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

  10. Measurement Types • Same as manual measurements • Select measurements relevant for object type • Use measurements for filtering

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

  12. 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

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