Method of managing and viewing image data

A conventional method of organizing image data taken by a digital camera attaches to each data only information on date and time and position, without acquiring information related to content of the data. Therefore, positional information is obtained and attached to a data of image or text, and when storing the data, information related to the position is acquired based on the positional information and stored in association with the data. Related information is acquired when the data is viewed, also. A size of a data file is reduced with decreased size of information attached to the file. Acquiring the latest information as well as previous information upon data view is possible, since information related to the position of data creation is available in addition to information on the date and time and position, when storing and viewing the data. The acquired information enables detailed categorizing, searching and rendering data.