80S-20用户手册 - 第263页

SIPLACE 80S -20/F4 User Manual 6 Vision functions Software version SR.407.xx 01/2001 US Edition 6.5 Teach Fiducial 263 6.5.5.1 T ransforms 1 to 5 O ption When you select this opti ons, 6 – the m enu cl oses , – the vide …

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6 Vision functions SIPLACE 80S-20/F4 User Manual
6.5 Teach Fiducial Software version SR.407.xx 01/2001 US Edition
262
To make it easier for you to assess the range of brightness or the contrast, these gray-scale values
have been converted with the help of transformation tables into color as is shown below: 6
NOTE 6
In order to achieve a good uniqueness value the contrast difference between the fiducial and its
surroundings should be at least 75. For example, if the background is green the fiducial should
be orange.
If the contrast is unsatisfactory you can select in the menu between five pre-programmed trans-
formation tables in order to obtain a color image which is capable of supplying the necessary in-
formation. In addition, you can also program a transformation table yourself. 6
NOTE 6
When the color presentation is changed the fiducial will be taught at the same time.
Gray scale Allocated color
0black
30 violet
50 blue
77 blue-green
100 green
127 brown
150 red
175 orange
200 yellow
255 white
Tab. 6.5.1
SIPLACE 80S-20/F4 User Manual 6 Vision functions
Software version SR.407.xx 01/2001 US Edition 6.5 Teach Fiducial
263
6.5.5.1 Transforms 1 to 5 Option
When you select this options, 6
– the menu closes,
– the video image is displayed,
– the teach command is given, and
– header and footer with color table option, fiducial number and the uniqueness value are dis-
played.
6
Fig. 6.5 - 18 Contrast sensitivity menu, Transforms 1-5 video image
Å Press Esc to quit this option.
Fiducial No. = 8 Uniqueness = 70
Disp. with transform 2
6 Vision functions SIPLACE 80S-20/F4 User Manual
6.5 Teach Fiducial Software version SR.407.xx 01/2001 US Edition
264
6.5.5.2 ’Program Transform 5’ Option
When this option is activated the Contrast sensitivity transform 5 option box opens. 6
6
Fig. 6.5 - 19 Contrast sensitivity menu, Contrast sensitivity transform 5 option box
You can select the following parameters: 6
– Number of sections which the transformation table should have: a number between 1 and 5
– Choice of paired values: with 5 sections 10 value pairs are permitted.
Layout of the Contrast sensitivity transform 5 option box 6
Numerical presentation of Transform 5 6
The numerical values are indicated in the upper part of the option box. These are: 6
Section: Number of sections 6
OUT Begin: OUT End: Ranges of values for the transformation of the individual sections 6
IN: Range limits of the individual sections 6
Scroll field
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