| 摘要 |
PURPOSE:To prevent the generation of a boundary line between adjacent images when these images are inverted by applying the coordinate transformation to the right-left coordinate value and the upper-lower coordinate value of an image area based on the different expressions of transformation. CONSTITUTION:A coordinate transformation means 8 applies the coordinate transformation to the coordinate values of the right, left, upper and lower sides forming an image area with use of different expressions of transformation respectively. When an area to be inverted is specified by the means 8, a CPU 7 calls a program out of a memory device 6 to invert an image and computes the data on the corresponding image area to invert the image. As a result, a boundary line is never produced between the adjacent images when these images are inverted. |
