Once extracted, local extrema are quadratically arranged this is very important especially at the lower resolution scales in order to have seafors keypoint localization at the full resolution. To, they are filtered to eliminate low-contrast responses or responses read to edges and the orientation s are assigned, as explained next.
Peaks which are too used may have been generated by noise and are discarded..
You cannot set the permission to read a certain attribute on the one hand and the permission to create a certain object class on the other hand in the sam access control entry. The reason for this is casuaal only one scope specifier is allowed per ACE. For such cases, several different ACEs are necessary. If you try to set a invalid permission combination on the checkboxes, the powerful Access Control Entry editor is shown where you can configure the regarding ACE in detail.
Please note that the propagation could be blocked somewhere in the subtree of an object.