Patent ID: 8848252
Filing Date: 2014-09-30
Classification: G06K,H04N

Abstract:
1. A control device comprising: a processor; and a memory that stores computer program that, when executed by the processor, causes the control device to function as: wherein the plurality of threshold values in the first dither matrix are arranged such that the ON-pixels grow from a first group of ON-pixels to a second group of ON-pixels as the input value increases, the ON-pixels in the first group corresponding to cells arranged in M rows and N columns, M being a natural number, N being a natural number, the ON-pixels in the second group corresponding to cells arranged in (M+1) rows and (N+1) columns, the second group of the ON-pixels consisting of the first group of ON-pixels and a third group of ON-pixels, the third group of ON-pixels corresponding to (M+N+1) number of cells, at least two of the (M+N+1) number of cells being adjacent to each other and having same threshold values.