Photolisa · comparison and counting

Count Objects

Object counting identifies repeated visible items in a picture.

Image tool workspace

Enable JavaScript to use the processing controls. Tool instructions and limitations are available below.

Understanding count objects

Object counting identifies repeated visible items in a picture.

Check overlapping and partly hidden objects manually. A count can be uncertain when boundaries are unclear.

A practical workflow

  1. Choose the required source files, if any. Files are handled as stated in the workspace privacy label.
  2. Set the available controls and apply the operation.
  3. Compare the actual output, check its dimensions and download the generated file.

Decisions and limitations

  • Brightness threshold
  • Minimum region area (pixels)

Images up to 16 megapixels and 20 MB. Keep an original copy. Export preserves pixels, not editable layers or original metadata.

Questions about this task

Where do I use the current tool?

Count separated dark regions using a brightness threshold. Touching objects are one region; this is not semantic object recognition.

What should I check for count objects?

Check overlapping and partly hidden objects manually. A count can be uncertain when boundaries are unclear.

Which settings and formats are confirmed?

JSON. Images up to 16 megapixels and 20 MB. Keep an original copy. Export preserves pixels, not editable layers or original metadata.

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