| 摘要 |
PROBLEM TO BE SOLVED: To provide a drawing inputting method capable of improving working efficiency for obtaining a superposed picture of drawings. SOLUTION: In the case of obtaining a multiple picture for plural mutually related drawings by a drawing input device for inputting a drawing to a computer as an image, recognizing and editing the image and converting the processed image into vector data, another related drawing is inputted by an image scanner (S1), the already inputted vector data are read out and converted into a vector picture (S2), the vector picture is compared with the picture of the other drawing to correct the distortion of the picture (S3), and the distortion- corrected picture is saved in a file (S4). Then the vector data are converted into a vector picture (S5) and exclusive OR between the stored picture of the other drawing and the vector picture is found out to obtain a multiple picture. Then a difference between the vector picture and the picture of the other drawing is found out, the histogram of the picture is prepared and a picture to be deleted is judged from the peak value of the histogram. |
