Disclosed are a multilevel half toning apparatus and a multilevel half toning method capable of multilevel half toning using a binary half toning table. The multilevel halftoning apparatus includes a multilevel halftoning unit which determines an output level of pixels constituting an input image, masks a binary halftoning table scaled on the input image, and a binary halftoning table masked on each pixel of the input image. A threshold analyzer which compares a threshold of a pixel located on the left side with a threshold of a pixel located on the right side, an offset direction determiner that determines an offset direction of each pixel according to a comparison result of the threshold analyzer, and an offset of each determined pixel And an output unit for outputting an input image according to the determined output level of each pixel from the direction. Thereby, by multilevel halftoning using a binary halftoning table in which the thresholds are grouped in one pixel unit, not only the microdoses are optimally clustered but also the print quality is improved by the optimal clustering.;Binary Halftoning Table, Multilevel Halftoning, Threshold Analysis, Offset
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