Altami Software - software for image analysis
Altami Software
Software for image analysis

8.5.6 Top Hat transformation

The filter subtracts the opened image from the original one (“TopHat” transformation). It shows areas which are lighter than others and is used for their isolation. It is useful for marking details on the half-hue image.

You can use TopHat and Black Hat transformations together for increasing the contrast.

Filter parameters:

  • Size;
  • Iteration.

Size (size) parameter determines the area of the filter influence around each point.

Iteration (iteration) parameter determines the amount of iterations.


Altami software products work under the most popular modern operating system such as Windows, Linux и Macintosh.

Need to develop?

If our products do not solve your problems, we are ready to develop "from scratch" or modify existing applications.

USB 3.0

Tired of the slow camera work? Keep up with progress! The camera on USB 3.0! operates at a speed of up to 180 fps.