Imperx bobcat, Руководство пользователя

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BOBCAT Hardware User’s Manual
Imperx, Inc. Rev. 2.0.6
6421 Congress Ave. 11/20/2012
Boca Raton, FL 33487
+1 (561) 989-0006
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2.12 TEST IMAGE PATTERNS
2.12.1 Test Image patterns
The camera can output several test images, which can be used to verify the camera‟s
general performance and connectivity to the frame grabber. This ensures that all the
major modules in the hardware are working properly and that the connection
between the frame grabber and the camera is synchronized – i.e., the image
frameing, output mode, communication rate, etc. are properly configured. Please
note that the test image patterns do not exercise and verify the CCD‟s functionality.
The following test images are available:
-
Black
– displays
black image (value x0000)
- Gray
– displays an uniform dark gray image (value x2000)
- White
– displays an uniform white image (value 3FFF)
- H Ramp Still
– displays a stationary horizontal ramp image
- V Ramp Still
– displays a stationary vertical ramp image
- H Ramp Move
– displays a moving horizontal ramp image
- V Ramp Move
– displays a moving vertical ramp image
- Vertical Bars
– displays a set of 8 vertical gray bars with different gray levels.
2.12.2 Image Superimposition
The user has the capabilities to superimpose over a live image the following test
patterns. The user can change the brightness of the superimposed image from black
(invisible) to white.
Image superimposition is not available during H & V binning.
-
“
Crosshair
” – Crosshair watermark (2 pixels and 2 lines thickness) indicating
the absolute image center of the image.
-
“
H & V Lines
” – A pair of Horizontal and Vertical lines can be positioned in the
image. The user can enable the lines in horizontal, vertical or both directions, and
to position them at any pixel/line in the image.
Since the H & V lines can be used
as a measuring tool, the pixel and line positions are referenced to the CCD pixels
and lines, not to the image pixels and lines
. The spacing between the lines can be
displayed in:
1.
Pixels - Natively, the spacing between the lines is shown in pixels
2. Metrical units - In addition, the user can use these lines as a measuring tool.
The user can apply a scale coefficient and thus, to calculate the spacing in
linear measuring units (micrometers, millimeters or meters).