Patent ID: 6674921
Filing Date: 2004-01-06
Classification: G06T

Abstract:
An apparatus of image sampling for processing an input image value to produce an output image value in a digital image scan system, wherein the digital image scan system provides a first parameter, and the first parameter is a ratio of non-optical and formal resolution in the digital image scan system, which comprises:an adder, for receiving the first parameter and a second parameter, and producing a carry bit and a value; a first register, for receiving the value, and outputting the second parameter, which is fed back to the adder; a first multiplexer, for deciding to output the first or the second parameter under the control of the carry bit; a multiplier, for receiving the input image value and the output of the first multiplexer, and outputting a third parameter; an adder/subtracter, for doing the addition or the subtraction of the third parameter and a fourth parameter under the control of the carry bit and outputting a fifth parameter; a second multiplexer, for deciding to output the third or the fifth parameter; a second register, for receiving the fifth parameter, and outputting the fourth parameter; and a divider, for receiving the output of the adder/subtracter, and outputting the output image value under the control of the carry bit.