Conversion destination pixel determination device, image conversion device, conversion destination pixel determination method, image conversion method, and program

摘要

To enable image data to be converted into image data that is difficult to stealthily glance at, while maintaining the visibility of pre-conversion image data, by taking advantage of a calculation process in which color changes of pixels before and after the conversion are reflected.SOLUTION: A candidate pixel for the pixel at conversion designation of a first pixel 0, 0 among a plurality of pixels 0, 0 to 15, 15 is selected. A candidate pixel with which the sum of the color space distance between the first pixel 0, 0 and the candidate pixel and a difference between the value of leakage electromagnetic strength of the candidate pixel and the most common value of the leakage electromagnetic strength of the plurality of pixels 0, 0 to 15, 15 is minimal, is determined to be the pixel at conversion destination of the first pixel 0, 0. This process of determining the pixel at conversion destination is repeatedly executed on all of the plurality of pixels 0, 0 to 15, 15, and a pixel conversion table is thereby created in which each pixel is associated with the pixel at conversion destination. The image data is converted using this pixel conversion table.SELECTED DRAWING: Figure 1