Operation and Features
Basler L301kc
3-33
DRAFT
3.9.2 Test Image Two
(Moving Vertical Gray Gradient)
Test image two is formed with a vertical gray scale gradient that ranges from 0 to 255 (8-bit mode)
or 0 to 1023 (10-bit mode) and repeats every 256 or 1023 pixels. The first pixel in the first line has
a red value of 0, a green value of 0 and a blue value of 0. The second pixel has a red value of 1,
a green value of 1, and a blue value of 1, and so on.
This pattern changes by one pixel each time the ExSync signal cycles. At pixel 1 of the second
cycle, the new gradient starts with a red value of 1, a green value of 1, and a blue value of 1. The
second pixel has a red value of 2, a green value of 2, and a blue value of 2, and so on.
When you view the output of a camera that is set for test image two, the pattern should appear to
be gradually moving across the screen. This feature is useful for determining if the frame grabber
grabs every single line that is output from your camera.
3.9.3 Test Image Three
(Moving Horizontal Gray Gradient)
Test image three consists of two parts. The left half of the image is formed with repeated vertical
gray scale gradients ranging from 0 to 255. The first pixel in each line has a red value of 0, a green
value of 0 and a blue value of 0. The second pixel has a red value of 1, a green value of 1, and a
blue value of 1, and so on.
The right half of the image is formed with repeated horizontal gray scale gradients ranging from 0
to 255. This pattern moves up by one line each time the ExSync signal cycles.
Test image three is useful in 8-bit mode for determining if the spatial correction feature of the
camera is working correctly (spatial correction is only available in 8-bit mode).
When the Spatial Correction Delay in Lines is Set to 0
When you view the output of a camera that is set for test image three and you set the spatial
correction delay of the camera to 0 lines (no spatial correction), there should be no difference
between the RGB values within the same pixel in the right half of the image. (Spatial correction
has an effect only to the right half of the test image, the left half of the image can be ignored.)
When the Spatial Correction Delay in Lines is Set to Greater than 0
When you set the spatial correction delay of the camera to 8 lines, there should be a difference of
8 between the red value and the green value, and between the green value and the blue value
within the same pixel in the right half of the image. The readings should be 0-8-16 (red-green-blue)
1-9-17, and so forth.
When you set the delay to 7 lines, there should be a difference of 7 values. The readings should
be 0-7-14 (red-green-blue), 1-8-15, and so forth.
Figure 3-26: Test Image Three (8-bit mode)
Summary of Contents for L301kc
Page 1: ...Basler L301kc USER S MANUAL Document Number DA00051806 Release Date 13 July 2007...
Page 4: ......
Page 14: ...Introduction 1 6 Baslert L301kc DRAFT...
Page 20: ...Camera Interface 2 6 Basler L301kc DRAFT Figure 2 3 Camera Frame Grabber Interface...
Page 102: ...Configuring the Camera 4 32 Basler L301kc DRAFT...
Page 116: ...Troubleshooting 6 10 Basler L301kc DRAFT...
Page 118: ...Revision History ii Basler L301kc DRAFT...
Page 120: ...Feedback iv Basler L301kc DRAFT...
Page 124: ...Index viii Basler L301kc DRAFT...