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Inverse the image
Click on “Inverse”
to inverse the grey level of the image. This makes a negative image.
Case 1:
Positive image
(white spot, black background)
Case 2:
Inverted image - Negative image
(black spot, light background)
Adjust the image display
The Display option menu is helpful to enhance the image display by modifying the image greyscale selection to be
displayed. In standard, the Uvidoc HD6 images have 16-bit format and Windows® can only display 8-bit images (256 grey
levels). Due to this limitation, the software handles two images:
•
A “memory” image corresponding to the 16
-bit format (65 536 grey levels)
•
A “displayed image” corresponding to the image displayed on the screen (256 grey levels)
The easiest way to calculate the “display image” would be to tra
nslate the full grey scale each time an image is acquired:
the x grey levels values of the “memory” image corresponds to 256 values in the displayed image. In that case, it won’t
be possible to visualize faint spots on a dark image.
