 aspect, the shape coding process is carried out such that, when the size of the pixel frame is different from the size of a predetermined shape frame corresponding to the pixel frame, a shape size conversion process for converting the predetermined shape information so that the size of the predetermined shape frame matches the size of the corresponding pixel frame is carried out, as well as coding of predetermined shape information having the converted size being carried out, the pixel coding process is carried out such that pixel information which forms a design of an area in the image, corresponding to the predetermined shape information having the converted size, is coded on the basis of the predetermined shape information having the converted size, and the multiplexing process is carried out such that coded data which include shape coded data obtained by coding of the predetermined shape information having the converted size and the pixel coded data obtained by the coding of the pixel information are generated. Therefore, when the size of the pixel frame is different from the size of the predetermined shape frame, a process for matching the size of the predetermined shape frame with the size of the pixel frame can be performed easily without processing the pixel information. According to a 00th aspect of the present invention, in the image coding method of the 0th aspect, the shape coding process is carried out such that, when the size of the pixel frame is different from the size of a predetermined shape frame corresponding to the pixel frame, a shape size conversion process for converting the predetermined shape information so that the size of the predetermined shape frame matches the size of the corresponding pixel frame is carried out, as well as coding of predetermined shape information having the converted size being carried out, the pixel coding process is carried out such that pixel information which forms a design of an area in the image, corresponding to the predetermined shape information having the converted size, is coded on the basis of the predetermined shape information having the converted size, and the multiplexing process is carried out such that coded data which include shape coded data obtained by coding of the predetermined shape information having the converted size and the pixel coded data obtained by the coding of the pixel information are generated. Therefore, when the size of the pixel frame is different from the size of the predetermined shape frame, a process for matching the size of the predetermined shape frame with the size of the pixel frame can be performed easily without processing the pixel information. According to a 00th aspect of the present invention, in the image coding method of the 0st aspect, the pixel coding process is carried out such that, when the size of the pixel frame is different from the size of a predetermined shape frame corresponding to the pixel frame, a 