LSM 710 and LSM 780
TOOLS, ADDITIONAL SOFTWARE
Systems
3D for LSM
Carl Zeiss
02/2010 M60-1-0025
e
21
Contrast - Automatic
This function scales the grey values of an image sequence to the maximum possible range.
Fig. 14
The
Automatic
tab sheet of the
Contrast
dialog window must be selected.
This function enhances the contrast of an image sequence by spreading the grey value distribution over
the maximum possible range. This function is used to achieve a better view of an image.
The light and dark grey value ranges with a low share of pixels are excluded from the operation by the
parameter
Threshold
. The
Threshold
units are in thousandths of the total number of voxels. Using a
value of 10 means that the scale interval is set so that 5/1000 of the total number of voxels on the light
side, and 5/1000 of the total number of voxels on the dark side of the grey value distribution are
excluded.
Input
indicates the sequence to enhance. If it is a multichannel sequence, a single channel, all channels,
or any number can be selected. The
Input
histogram shows the grey value distribution of the selected
channels of the
Input
image sequence.
Output
defines the name of the result sequence. It will get only those channels which are chosen by the
Input
parameter. The buttons labeled with 8 and 12 define the grey value (intensity) resolution in bit.
Normally the result will get the same resolution as the
Input
sequence. A change will be needed if image
sequences with different resolutions should be combined. Rising the grey value range to 12 bit will not
enhance the display quality or measurement accuracy. The smooth and morphology functions will
produce results with finer gradations.
