ANDREW MICHAEL MCMAHON
Pilots at Vienna Dr, Sunnyvale, CA

License number
California A2188111
Issued Date
Mar 2017
Expiration Date
Mar 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1225 Vienna Dr SPC 398, Sunnyvale, CA 94089

Professional information

Andrew Mcmahon Photo 1

Filtered Noise Reduction In Digital Images

US Patent:
2007013, Jun 14, 2007
Filed:
Dec 12, 2005
Appl. No.:
11/301194
Inventors:
James Adams - Rochester NY, US
Andrew McMahon - Sunnyvale CA, US
Pierre Della Nave - Sunnyvale CA, US
Amy Enge - Spencerport NY, US
International Classification:
H04N 9/64
US Classification:
348242000
Abstract:
A method of reducing noise in a digital image produced by a digital imaging device, includes producing a luminance and at least one chrominance channel from a full-color digital image with each channel having a plurality of pixels and each such pixel has a value; producing an edge value from neighboring pixels in neighborhoods in the at least one chrominance channel; modifying the pixel value in the chrominance channel with an infinite impulse response filter responsive to the edge value of the corresponding pixel neighborhood to provide a modified chrominance channel; and producing a full-color digital image from the luminance channel and the modified chrominance channel, with reduced noise.