Abstract: A two-dimensional code 100 includes a plurality of lines L arranged in a second direction (X direction) at an interval S, and each line L includes a plurality of cells that indicate a plurality of bits and are arranged in series in a first direction (Y direction) orthogonal to the second direction. Each of the plurality of cells is either a first data cell 101 indicating a first value out of two values that the bits indicate, or a second data cell 102 indicating a second value out of the two values that the bits indicate. The first data cell includes a first density region 103 indicating the first value at a first position in the second direction. The second data cell includes a second density region 104 indicating the second value at the first position, and a third density region 105 adjacent to the second density region in the second direction.

Abstract: A two-dimensional code 100 includes a plurality of lines L arranged in a second direction (X direction) at an interval S, and each line L includes a plurality of cells that indicate a plurality of bits and are arranged in series in a first direction (Y direction) orthogonal to the second direction. Each of the plurality of cells is either a first data cell 101 indicating a first value out of two values that the bits indicate, or a second data cell 102 indicating a second value out of the two values that the bits indicate. The first data cell includes a first density region 103 indicating the first value at a first position in the second direction. The second data cell includes a second density region 104 indicating the second value at the first position, and a third density region 105 adjacent to the second density region in the second direction.