PROBLEM TO BE SOLVED: To utilize the information of a clear character with much information amounts without generating a shift phenomenon of the character occurring in the case of enlarging the character as a compression rate is enhanced and to obtain the clear character when it is decoded by using and compressing the information of the character larger than the character to be compressed. SOLUTION: When the character of 3232 dots is reproduced, the character font of 4848 dots decoded already and reduced to 2/3 by a 2/3 reducing device 57a is used as a context. Then, first compression data 51 are reproduced as the character font of 3232 dots by an entropy decoder 54. When the character of 2424 dots is reproduced, the data of the character font of 4848 dots are obtained. Thereafter, after they are made to the character of 2424 dots by a 1/2 reducing device 57b, the data of its character are used as the context and the character font of 2424 dots is reproduced from second compression data 52 by an entropy decoder 55.
展开▼
