A method of transmitting stereoscopic image data, comprising:
- outputting a stereoscopic image data of a predetermined transmission format including left-eye image data and right-eye image data;
- outputting data of overlapping information to overlap an image by the left-eye image data and the right-eye image data;
- converting the data of the overlapping information output in the outputting of data of overlapping information into transmission overlapping information data including data of left-eye overlapping information corresponding to the left-eye image data included in the stereoscopic image data of the predetermined transmission format and data of right-eye overlapping information corresponding to the right-eye image data;
- and
- transmitting multiplexed data stream that includes a first data stream including the stereoscopic image data output in the outputting of a stereoscopic image data and a second data stream including the transmission overlapping information data output in the outputting of data of overlapping information.