Another threshold for the feature size to eliminate edges. The larger the threshold, the more points you get.

Another threshold for the laplacian to eliminate edges. The larger the threshold, the more points you get.

Maximum size of the features. The following values of the parameter are supported: 4, 6, 8, 11, 12, 16, 22, 23, 32, 45, 46, 64, 90, 128

Threshold for the approximated laplacian, used to eliminate weak features. The larger it is, the less features will be retrieved