Patent ID: 9479676
Filing Date: 2016-10-25
CPC Classification: B41J,H04N

Claim Text:
1. A print data generation method for printing, by a printer, linear images constituting a three-dimensional image on a lens sheet having a plurality of lenticular lenses, the print data generation method comprising: obtaining image data including the three-dimensional image for printing the linear images on the lens sheet having the lenticular lenses each of which has edges defining a width of each of the lenticular lenses in an array direction of the linear images; setting, to the lens sheet, an end section area which is positioned at an end side of the lens sheet in the array direction relative to a boundary line that extends extending in a perpendicular direction perpendicular to the array direction and is offset in the array direction relative to all of the edges so that the boundary line does not overlap any of the edges when viewed along a normal direction to the lens sheet, and an inner section area positioned at an inner side of the lens sheet in the array direction relative to the boundary line, judging to which one of the end section area and the inner section area of the lens sheet a target area to be printed in a print area of the linear images belongs; performing a first halftone processing to generate, based on the image data, dot data for dots in the inner section area under a high resolution dot size condition in which a first ejection ratio of small dots and a first ejection ratio of large dots are set when the target area belongs to the inner section area, the performing of the first halftone processing including generating the dots data for the dots under the high resolution dot size condition, even in the end section area, for a range of an object in which a moving distance in the three-dimensional image exceeds a threshold; and performing a second halftone processing to generate, based on the image data, dot data for dots in the end section area other than the range under a dot formation condition in which a second ejection ratio of small dots, which is lower than the first ejection ratio of the small dots, and a second ejection ratio of large dots, which is higher than the first ejection ratio of the large dots, are set when the target area belongs to the end section area; outputting print data for printing the linear images, which includes the dot data generated by the first and second halftone processing, to the printer so as to cause the printer to print the linear images.