Method for compensating for a chromaticity shift due to ambient light in an electronic signboard

Method for compensating for a chromaticity shift due to ambient light in an electronic signboard

  • CN 101,816,028 A
  • Filed: 08/06/2008
  • Published: 08/25/2010
  • Est. Priority Date: 08/08/2007
  • Status: Active Application
First Claim
Patent Images

1. one kind is used for compensate for electronic signboard plate because the method that the colourity that surround lighting causes changes comprises:

  • Measurement is from the color of the light of this signboard plate reflection;

    AndFor each pixel on this signboard plate, (a) find the solution ratio colour equation for the light that just will be perceived as the expectation that shows by described pixel, described than colour equation be described surround lighting and under the situation that does not have surround lighting by the mixture of colours that adds of the light of described pixel actual displayed;

    And (b) according to described than the separating of colour equation, the actual light of control by described pixel actual displayed.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×