Device and method for interpolating image data and medium on which image data interpolating program is recorded

An image data interpolating method which obtains image data containing attribute information capable of distinguishing a type of image in the unit of pixel and enlarges the image data by an interpolating process, the method comprising the steps of:

• reading out the image data;
• and
• distinguishing a plurality of image types of the pixels based on the attribute information, applying one of a plurality of interpolating processes differing for every one of the image types to each one of the pixels, and synthesizing the pixels interpolated by the different interpolating processes.

A medium on which an image data interpolating program is recorded, the program accomplishing the function of obtaining image data containing attribute information capable of distinguishing a type of image in the unit of pixel and enlarging the image data by an interpolating process, the program accomplishing on a computer the steps of:

• reading out image data;
• and
• distinguishing a plurality of image types of the pixels based on the attribute information, applying one of a plurality of interpolating processes differing for every one of the image types to each of the pixels, and synthesizing the pixels interpolated by the different interpolating processes.