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Hi
I have too count objects of different size that are
fairly round (in contrast to the surrounding "noise"). Smaller objects are
rounder than bigger ones. Thus I try to make a stepwise count with "accumulate
count" toggled on and the desired filter ranges applied. I tried all possible
combinations:
A: starting with small, very round objects to
bigger and less round objects
B: inverse
C: starting with the whole size range and
roundness range, getting smaller and rounder
D: inverse
It didn't work anyway. What do I wrong?
According to the description in the handbook I would say that case A should
work.
A short outline of my macro to get the
idea:
....
ret = IpBlbSetFilterRange(BLBM_AREAPOLY +
CALIB_UNIT, 1600, 2500)
ret = IpBlbSetFilterRange(BLBM_ROUNDNESS + CALIB_UNIT, 1, 2.1) ret = IpBlbCount() ret = IpBlbUpdate(0) ret = IpBlbSetFilterRange(BLBM_AREAPOLY + CALIB_UNIT, 800, 1600) ret = IpBlbSetFilterRange(BLBM_ROUNDNESS + CALIB_UNIT, 1, 1.6) ret = IpBlbCount() ret = IpBlbUpdate(0) .........
Georg
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Georg von Arx Geobotanical Institute ETH Zürichbergstrasse 38 CH-8044 Zürich vonarx@geobot.umnw.ethz.ch Tel.: +41-1- 632 77 87
Fax: +41-1-632 12 15 |