| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To facilitate display and recording of contents written on a blackboard during a lecture. <P>SOLUTION: An image processing system includes: a photographing means 103 for photographing a writing board; a reference luminance value calculating means for calculating a reference luminance value from an initial image obtained by photographing the writing board in an initial state; an extraction means for extracting an image in a region, where a difference from the reference luminance value is equal to or larger than a predetermined value, as a drawing image drawn on the writing board; and an image output means 102a for combining the drawing image extracted by the extraction means and a material image preliminarily prepared for a lecture, to output a combined result. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
