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11.5 Grey Level Transformation (LUT)
11.5.3
User-defined Look-up Table
In the ’User’ mode, the mapping of input to output grey levels can be configured arbitrarily by
the user. This procedure is explained in Section C.4.
U
s e r L U T
y = f ( x )
1 2 b i t
8 b i t
Figure 11.6: Data path through LUT
11.5.4
Region LUT and LUT Enable
Two LUTs and a Region-LUT feature are available in the camera. Both LUTs can be enabled
independently (see Table 11.1). LUT 0 superseeds LUT1.
Enable LUT 0
Enable LUT 1
Enable Region LUT
Description
-
-
-
LUT are disabled.
X
don’t care
-
LUT 0 is active on whole image.
-
X
-
LUT 1 is active on whole image.
X
-
X
LUT 0 active in Region 0.
X
X
X
LUT 0 active in Region 0 and LUT 1 active
in Region 1. LUT 0 supersedes LUT1.
Table 11.1: LUT Enable and Region LUT
When Region-LUT feature is enabled, then the LUTs are only active in a user defined region.
Examples are shown in Fig. 11.7 and Fig. 11.8.
Fig. 11.7 shows an example of overlapping Region-LUTs. LUT 0, LUT 1 and Region LUT are
enabled. LUT 0 is active in region 0 ((x00, x01), (y00, y01)) and it supersedes LUT 1 in the
overlapping region. LUT 1 is active in region 1 ((x10, x11), (y10, y11)).
Fig. 11.8 shows an example of keyhole inspection in a laser welding application. LUT 0 and LUT
1 are used to enhance the contrast by applying optimized transfer curves to the individual
regions. LUT 0 is used for keyhole inspection. LUT 1 is optimized for seam finding.
.
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Содержание MV8-D8424-G01-GT
Страница 8: ...CONTENTS 8 of 139 MAN094 03 2021 V1 0...
Страница 12: ...1 Preface 12 of 139 MAN094 03 2021 V1 0...
Страница 16: ...3 Product Specification Figure 3 1 Photonfocus MV8 Gpixel 10 GigE camera series 16 of 139 MAN094 03 2021 V1 0...
Страница 40: ...4 Image Acquisition 40 of 139 MAN094 03 2021 V1 0...
Страница 50: ...5 Counter Timer 50 of 139 MAN094 03 2021 V1 0...
Страница 68: ...10 Frame Rate 68 of 139 MAN094 03 2021 V1 0...
Страница 79: ...11 6 Binning MAN094 03 2021 V1 0 79 of 139...
Страница 92: ...12 Precautions 92 of 139 MAN094 03 2021 V1 0...
Страница 110: ...13 Hardware Interface 110 of 139 MAN094 03 2021 V1 0...
Страница 116: ...15 Troubleshooting 116 of 139 MAN094 03 2021 V1 0...
Страница 122: ...18 Support and Repair 122 of 139 MAN094 03 2021 V1 0...
Страница 124: ...19 References 124 of 139 MAN094 03 2021 V1 0...
Страница 128: ...A Pinouts 128 of 139 MAN094 03 2021 V1 0...
Страница 138: ...C Use Cases 138 of 139 MAN094 03 2021 V1 0...
Страница 139: ...D Document Revision History Revision Date Changes 1 0 March 2021 First Version MAN094 03 2021 V1 0 139 of 139...