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

8.5.5 Gradient

The filter marks sharp drops of brightness at the original image, that means, underlines the contours of the image, almost not enhancing the noises. At the black and white image this operator shall show how quickly the brightness changes, that means, it has the greatest result where the original image changes the most quickly.

The gradient filter subtracts the image after erosion from the image after dilation. For the receiving of morphological primitive symmetric primitives are used, thus, the work of the filter only vaguely depends on the contours direction.

Filter parameters:

  • Size;
  • Iteration.

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

Iterations (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.