International hydrographic organization specifications for chart content and display aspects of ecdis



Download 0.98 Mb.
View original pdf
Page64/65
Date14.07.2021
Size0.98 Mb.
#57072
1   ...   57   58   59   60   61   62   63   64   65
S-52 Appendix 2 - IHO
S-52 Appendix 2 - IHO

-
White Point Calibration in the CRT: (Performed by adjusting the CRT electronics) The white point of a CRT is setup by comparing the white colour on the screen to a standard lamp. The standard lamps for this purpose are fairly rugged, and compact. The process is reasonably accurate. The process is as follows
1. Put a black signal onto the screen. Adjust the black level of each gun using the R,G,B cutoff controls) to just extinguish the raster in each colour.
2. Put a white signal on the screen, and adjust the individual gain controls of the R,G, and B guns to achieve a white that matches the standard lamp.

Download 0.98 Mb.

Share with your friends:
1   ...   57   58   59   60   61   62   63   64   65




The database is protected by copyright ©ininet.org 2024
send message

    Main page