Manual

June 2004 Isis® Sonar User's Manual, Volume 2 75
Set Contact Number…
When a contact is saved using the
Save Contact
command, it is given an identifier and named based on
that identifier. The identifier is an integer that you can
define with the
Set Contact Number command.
Each time a new contact is saved, the integer currently
entered in the
Next Contact Number field is used as
the contact identifier and the
Next Contact Number is
incremented. At any time during Target operation, you
can update this number.
Speed Correct
When
Speed Correct is on, any logged contacts will be
transferred to the Target utility with rectilinear images
based on the towfish speed. A check mark next to the
Speed Correct command in the Edit menu indicates
that
Speed Correct is on. Selecting Speed Correct
again turns it off. The default is off (unchecked).
Ramp Support
If you have Rapid Access Mission Profile support, you
can get RAMP files from this dialog box. See ‘RAMP
Support (Record/Playback)’ in the Isis® Sonar
User’s Manual, Volume 1.
Select Cursor
You can now choose among five different cursor types
to use in Target:
Normal Arrow, Cross hairs, Bull’s-
eye
, Gun Scope, or Single Dot.
Startup with Min/Max
Min/Max means the image is histogrammed in a certain
way: If, say, min/max is set at four percent, then the
first four percent of the pixel intensities (black to gray
maybe) are set to black. The top four percent (almost
white to total white) are set to highest intensity (255 or
65535, depending on whether the image is 8 or 16 bit).
Remaining intensities are linearly expanded to fill the
range of 0 to max.
By default,
Startup with Min/Max is checked. This
means that if an image is loaded which doesn't have an
audit trail, then min/max is automatically set at four
percent for that image and then displayed with that
setting.
You can change the min/max setting to a value
between one and twenty percent by using the min/max
slidebar in the Enhance dialo
g
box
(
selected from
Appendix E: Using the Target Utility