Example - Estimating Radii using the Circle
For estimation of radii
of regions that are not perfectly circular, and may not
be entirely within the field of view.
1) Load image.
a) If a gray scale
image stored as a JPEG file, make sure the option to open
color images as gray level is set (the default).
b) Zoom, scroll, etc.
to see image
/ to screen.
2) Position circle tool
on area of interest.
a) TOOLS /
selectes the front image.
on! Displays circle.
If circle not
visible, use 'Reset!', because last used circle
is now out of field of view.
d) Drag circle by
the center handle (tiny cirle).
e) Change circle size
with the outer handle (tiny circle). Note that
directional or angular position relative to center is changable, but does
not affect any recorded data.
To measure objects that
are partly outside the field of view,
- click until it says 'drag!
b)Drag image with
mouse until center of object is within the field
c) Click drag
to turn drag off (no drag! - this is the default).
Center circle on object,
while keeping outer tiny circle within
the field of view so you can drag it to adjust the size of the circle tool.
3) Record measurement.
1 This saves the data internally, and displays
the circle on the image.
b)Record other measurements
for this image if desired.
4) Save measurements to
File / save
This saves one file
per image. Best to clear the circles so
that data is not duplicated in the next file.
5) Concatenate data files
as desired. This puts all of the measurements
into one text file. Image file names in last collumn (lx04m & later).
File / concatenate
Note these text files
are tab delimited ASCII, and readable directly