Image processing apparatus directed to image outline processing, image processing method of the same, and computer-readable storage medium storing instructions for performing image processing

An image processing method comprising the steps of:

• detecting, by a processing device, a plurality of coordinate values indicating an outline of an object included in an input image;
• and
• calculating relative coordinate values of the coordinate values detected based on a coordinate value set as a reference;
• calculating a normalization coefficient for normalizing said relative coordinate values to values within a numeric value range defined by a prescribed number of digits;
• and
• generating outline data by multiplying the respective relative coordinate values by said normalization coefficient.

A non-transitory computer-readable storage medium storing computer executable instructions to perform the steps of:

• detecting a plurality of coordinate values indicating an outline of an object included in an input image;
• calculating relative coordinate values of the coordinate values detected based on a coordinate value set as a reference;
• calculating a normalization coefficient for normalizing said relative coordinate values to values within a numeric value range defined by a prescribed number of digits;
• and
• generating outline data by multiplying the respective relative coordinate values by said normalization coefficient.