Image printing method based on image processing technology

The invention discloses an image printing method based on the image processing technology. The image printing method specifically comprises the following steps that first, preprocessing is conducted on an original image; second, contour extraction is conducted on the image preprocessed in the first step; third, the image on which the contour extraction is conducted is compressed; fourth, the compressed image obtained in the third step is printed to a drawing board through a point printing device, and therefore printing and drawing of the original image are achieved. Various image processing technologies are integrated, the image is collected, processed and analyzed, and the processed image is printed out on the drawing board through the point printing device. The image printing method based on the image processing technology can effectively extract the outline of the image. Compared with manual image carving, the image printing method based on the image processing technology greatly shortens time, improves efficiency, achieves liberation of labor, achieves image information collection, processing and analysis, and solves the problem that an existing manual image printing method is low in efficiency.