| 摘要 |
<p>PURPOSE:To facilitate the input of plural pieces of mask area information. CONSTITUTION:An area designation image with plural colors per picture is generated (S3, S4, and S5) by performing the color designation of plural mask areas by an operator. An area image is identified (S6) at every color from the area designation image, and a mask image is generated at every color, then, plural mask images can be obtained (S7). Mask processing can be performed (S11) by using the mask image. Thereby. since area designation can be performed by using plural colors on one picture, it is possible to designate the plural mask images without switching a display picture.</p> |
