×

Apparatus and method for selecting encoding schemes based upon image content

  • US 6,215,904 B1
  • Filed: 11/30/1994
  • Issued: 04/10/2001
  • Est. Priority Date: 11/30/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An image compression apparatus comprising:

  • means for generating a first set of control signals indicating whether image data contains pictorial image data or text image data based upon image characteristics;

    first encoding means for encoding the image data in accordance with a first encoding scheme optimized for pictorial image data;

    second encoding means for encoding the image data in accordance with a second encoding scheme optimized for text image data, as the first encoding means encodes the image data; and

    control means for receiving encoded image data from both the first encoding means and the second encoding means and for selecting encoded image data from one of the first and second encoding means based upon the first set of control signals.

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