×

Conversion of a sub-pixel format data to another sub-pixel data format

  • US 7,689,058 B2
  • Filed: 10/13/2006
  • Issued: 03/30/2010
  • Est. Priority Date: 05/09/2001
  • Status: Active Grant
First Claim
Patent Images

1. A method of limiting filter kernel divisors in a filter kernel to a value designed to simplify hardware implementations, comprising:

  • calculating areas for filter coefficients using floating point arithmetic;

    dividing each said filter coefficient by a total area of a rendering area to produce a first product;

    multiplying each said first product by a divisor to produce a filter sum;

    completing a binary search to find a round off point for said filter sum; and

    converting said filter coefficients to integers using said round off point.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×