H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/82
H03M 1/12 (2006.01) H04N 1/403 (2006.01)
Patent
CA 2003704
A digital binarization circuit for image data includes a background level detecting circuit which uses a video signal as a reference input for determining the background level of an image represented by the video signal, and outputs the background level as a first address signal. A character level detecting circuit compares the video signal with a character level in a load decision comparator and loads the video signal as a character level when the signal is less than the reference level, and outputs the character level as a second address signal. A memory circuit outputs a threshold value stored at an address designated by the first and second address signals to a comparator. The optimum threshold value is outputted among prescribed threshold values stored in the memory circuit. The comparator compares the digitized video signal with the optimum threshold value and outputs a binary signal corresponding to the comparison result. Even for original documents with a dark background, noise is not liable to occur in the transmitted video signal, and a light character can appear clearly on the transmitted video signal.
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
LandOfFree
Digital binarization circuit for conversion of image data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital binarization circuit for conversion of image data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital binarization circuit for conversion of image data will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1669053