| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an image compressing apparatus capable of rapidly compressing image data to a target code amount with a simple configuration while maintaining the quality of a reproduced image as much as possible. <P>SOLUTION: This image compressing apparatus is provided with a coding section for coding coefficient data obtained by applying frequency processing to the image data, for each processing unit to generate the code data; a data reducing section for reducing the amount of the code data by reducing the code data generated for each processing unit in the coding section; and a data processing section for further dividing the coefficient data for each processing unit into coefficient data of a second processing unit, and increasing the reduced amount of the code data in the data reducing section for each second processing unit, according to a value of the coefficient data of the second processing unit. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
