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AssigneeCanon Kabushiki Kaisha
InventorToshimitsu Nakano
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It is made possible to prevent deterioration in quality of a thin line or character, which results from pseudo halftone processing. The image processing apparatus of the present invention includes: a generation unit configured to generate halftone image data in which a dot pattern is formed for each cell, which is a unit representing a tone level, by performing halftone processing using the first threshold value matrix for multi-value input image data, and in the first threshold value matrix, threshold values for forming the dot pattern are arranged for each cell and further, in threshold value arrangement for each cell of the first threshold value matrix, the second smallest threshold value within the cell is arranged at a position neighboring a position at which the smallest threshold value within the cell is arranged, and the position at which the second smallest threshold value is arranged is different between adjacent cells.
An image processing apparatus comprising:
An image processing method in an image processing apparatus that performs halftone processing using a threshold value matrix for multi-value input image data, the method comprising the step of:
A non-transitory computer readable storage medium storing a program for causing a computer to perform an image processing method in an image processing apparatus that performs halftone processing using a threshold value matrix for multi-value input image data, the method comprising the step of:
Dependencies are inferred from the claim text.