Image Review: Viewing and Enhancing Images
American Science and Engineering, Inc.
8-8
MINI
Z
Operator Manual 342-9000-1 Rev. B ECCN EAR99
automatically enabled again at the start of every new scan. This provides an optimal image updating
while the view is changing.
Disabling Dynamic Contrast only disables the automatic function, setting the overall contrast at the
last level. Contrast can then be applied manually, as described in
Section 8.1.4, Interactive Brightness
and Contrast
.
Zoom and scroll can be used with Dynamic Contrast to move very bright or very dark sections out of
the view, with the result of adding definition to the medium areas, to closely examine particular areas
of interest. The Dynamic Contrast effect can be completed removed by tapping the Reset button
.
Examples are provided in
Figure 8-2
.
8.1.4
Interactive Brightness and Contrast
When Dynamic Contrast is stopped, the software allows manual interactive simultaneous adjustment
of brightness and contrast. Although these adjustments apply to the entire image, the user can optimize
contrast for any particular feature in the image, not just for the average of all the features in the view
(as does Dynamic Contrast). With multi-image groups, the user can independently adjust each image
so the entire set has a consistent appearance.
Figure 8-2: Example of Image Manipulation with Dynamic Contrast. (1) Without Dynamic Contrast (example
after tapping the Reset button), the tonal range is set by the entire scanned image. (2) With Dynamic Contrast,
the color tonal range for the view area is maximized from white to black. (3) Automatic update after shifting
bright area out of view area maximizes the range for the mid-tones, revealing details. (4) After tapping the
Dynamic Range button (removing button highlight), apply manual contrast (density) fine-tuning by using the
press and tap gesture to optimize image details.
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