Patent ID: 6995802
Filing Date: 2006-02-07
Classification: G06K,H04N

Abstract:
1. An image binarization method, wherein as a first processing, multi-digitized luminance data obtained by digitally converted video signals from an imaging device for each pixel on each horizontal scanning line is stored in an even-numbered row horizontal line memory if the current horizontal scanning line is an even-numbered row, and is stored in an odd-numbered row horizontal line memory if the horizontal scanning line is an odd-numbered row, and in said multi-digitized luminance data on the current scanning line, detected maximum value MAX as a second processing, reading-out is carried out from the even-numbered detection memory if the current horizontal scanning line is an odd-numbered row, or from the odd-numbered detection memory if the current horizontal scanning line is an even-numbered row, and based on floating thresholds FT