Patent ID: 8908247

Claim:
An image creation device comprising: a binary image data creation unit configured to create same-resolution binary image data corresponding to an entirety of color image data made of a plurality of pixels, with a color of each of the pixels of the color image data being expressed in a bit row, and create low-resolution binary image data corresponding to the entirety of the color image data, the same-resolution binary image data being binary image data made of binary pixels arranged in a matrix and having a resolution that is the same as that of the color image data, the low-resolution binary image data being binary image data made of binary pixels arranged in a matrix and having a lower resolution lower than the color image data, the same-resolution binary image data and the low-resolution binary image data being different from each other, the binary image data creation unit being further configured to create the low-resolution binary image data by establishing a value of one of the binary pixels of the low-resolution binary image data based on values of the bit rows of colors of a plurality of the pixels of the color image data; and a combined image data creation unit configured to use a value of each of the binary pixels of the same-resolution binary image data and the low-resolution binary image data to create combined image data in which the same-resolution binary image data and the low-resolution binary image data are combined with the color image data, the combined image data creation unit being further configured to use a value of each of the binary pixels of the same-resolution binary image data to replace a value of a predetermined bit of a corresponding one of the pixels of the color image data, and to use a value of each of the binary pixels of the low-resolution binary image data to replace a value of a bit of each of corresponding ones of the pixels of the color image data other than the predetermined bit replaced by using the same-resolution binary image data.