Apparatus and method for correcting signal and color degradation in a video using known icons from video images

A television set comprising:

• transceiver circuitry capable of receiving an incoming radio frequency (RF) signal and generating therefrom an incoming baseband video signal;
• a frame buffer capable of receiving and storing a first video frame from said incoming baseband video signal;
• a memory capable of storing known pixel data corresponding to a plurality of known icons, said known pixel data comprising true color data values associated with said plurality of known icons;
• a color correction controller capable of comparing captured pixel data from said stored first video frame with said known pixel data stored in said memory and detecting a first actual image of a first known icon appearing in said stored first video frame, wherein said color correction controller is further capable of comparing a first true color data value associated with said first known icon and a first actual color data value associated with a first actual color in said first actual image of said first known icon and, in response to said comparison, determining a first color correction factor associated with said first actual color data value;
• and
• a display screen for displaying said first video frame.

A method for correcting the color of objects appearing in a video image comprising the steps of:

• receiving and storing a first video frame from an incoming baseband video signal in a frame buffer;
• storing in a memory known pixel data corresponding to a plurality of known icons, the known pixel data comprising true color data values associated with the plurality of known icons;
• and
• comparing captured pixel data from the stored first video frame with the known pixel data stored in the memory;
• detecting a first actual image of a first known icon appearing in the stored first video frame;
• comparing a first true color data value associated with the first known icon and a first actual color data value associated with a first actual color in the first actual image of the first known icon;
• and
• in response to the comparison, determining a first color correction factor associated with the first actual color data value.

For use in a processing system having a display screen, computer-executable instructions stored on a computer-readable storage medium for correcting the color of objects appearing in a video image, the computer-executable instructions comprising the steps of:

• receiving and storing a first video frame from an incoming baseband video signal in a frame buffer;
• storing in a memory known pixel data corresponding to a plurality of known icons, the known pixel data comprising true color data values associated with the plurality of known icons;
• and
• comparing captured pixel data from the stored first video frame with the known pixel data stored in the memory;
• detecting a first actual image of a first known icon appearing in the stored first video frame;
• comparing a first true color data value associated with the first known icon and a first actual color data value associated with a first actual color in the first actual image of the first known icon;
• and
• in response to the comparison, determining a first color correction factor associated with the first actual color data value.