[Problem] To provide an educational toy which allows an observed action to be experienced artificially. [Solution] A toy system (900) is used by bringing a magnifying-glass type hand-held instrument (930) into contact with a page (912) of a main body portion (910) having a picture portion (914). The magnifying-glass type hand-held instrument (930) captures an image of the picture portion (914), and determines the location, within the image in said picture portion, that has been captured. From pre-stored image data of a picture image that is the same as the picture portion (914), image data for a part (a partial image) corresponding to the location being captured are then read out and are displayed on a touch panel (942). If the location being captured fulfills certain location conditions, one image element from image elements W41 to W49 is also selected as a special image and is displayed superimposed on the partial image.

The invention describes a method for protecting the authenticity of an object, item, document, packaging and/or a label from imitation, forgery and theft, whereas during such marking by means of graphic halftone visually encoded image keeping qualitative-quantitative data of an subject and containing a hidden verification hash code in the form of a digital watermark (DWM), square data cells of the cross-linked structure of the graphic halftone image with identical brightness values are revealed in the entire area inside the revealed square data cell, thereafter a square-cross-linked mask is formed to store the base of the revealed readable data cells, the applied digital watermark (DWM) is read and opposed by means of comparison of the brightness of color components of the central of the revealed readable data cell against the arithmetic mean value of the brightness of the components of the eight neighbor squares surrounding the revealed readable data cell.

An information processing apparatus includes a processor configured to: receive an electronic document generated while maintaining text information by an application program or an electronic document generated by reading an image with a document reading apparatus; perform type determination as to whether the received electronic document including a portion representing a text is generated by the application program or generated by the document reading apparatus; and determine based on a result of the type determination whether an optical character recognition process is to be performed on the electronic document.