Patent ID: 11909939
Assignee: TOPPAN PRINTING CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 9:
10. The method of generating image data of claim 9, wherein
said setting the magnitude of the first threshold and the magnitude of the second threshold to be used in generation of the second image data include:
acquiring third image data corresponding to part of the first image data, the third image data comprises a plurality of pixels;
for each combination of a plurality of magnitude combinations for the first threshold and of the second threshold, binarizing a tone value of each pixel of the plurality of pixels of the third image data by any of the first binarization process, the second binarization process, and the third binarization process to generate fourth image data comprising a plurality of pixels, each pixel of the plurality of pixels of the fourth image data having a binarized tone value; and
setting the magnitude of the first threshold and the magnitude of the second threshold to be used in generation of the second image data to be a value of the first threshold and a value of the second threshold in a combination of the plurality of magnitude combinations, in which a summed value of differences in pixel between the third image data and the fourth image data is minimized.