Clear Two-Dimensional Code, Article Having Clear Two-Dimensional Code Attached Thereto, Method for Printing Two-Dimensional Code and Method For Displaying Two-Dimensional Code

摘要

The present invention relates to a clear two-dimensional code which can be merged with an image without giving a user a feeling of disorder when the clear two-dimensional code is attached to the image and in which a readable situation and the like can be arbitrarily set; an article having the clear two-dimensional code attached thereto; a method for printing the two-dimensional code; and a method for displaying the two-dimensional code. Base cells and data cells are arranged in a matrix, and either the base cells or the data cells are clear. The clear two-dimensional code can be read only when a color shown on the clear cells consisting of either the base cells or the data cells and a color shown or non-clear cells consisting of either the base cells or the data cells have a contrast which can be read by a code recognition apparatus.