| 摘要 |
<p>The invention relates to a method and a device for semi-automatic image tracing, particularly for computer-aided design. The graphics processing device comprises an image data storing unit (13, 26) for storing image data, a graphic data storing unit (14, 25) for storing graphic data, a display unit (16) for displaying the image data and the graphic data, a trace designation inputting unit (12) for inputting the designation for tracing, and a semi-automatic image trace processing unit (21) disposed so as to trace image points of the imaee data according to the designation for tracing, and comprising a parameter table (23) for providing control data on a condition for tracing the image points of the image data and for providing control data on correction processing by the result of tracing, and further comprising a branch-point neighborhood display processing unit (24) for enlarging and displaying the image in the neighborhood of a branch point for tracing, which comprises the steps of tracing the image points of the image data according to the control data of the parameter table (23) in response to the designation for tracing, interrupting trace processing at every branch point of the tracing path at which the designation by the operator is required on the way of tracing, enlarging the display of the image data in the neighborhood of the branch point, waiting for the designation for tracing by the operator to be made next, and continuing the trace processing due to the next designation for tracing.</p> |
