CONVERSION OF DIGITAL IMAGES INTO DIGITAL LINE DRAWINGS

摘要

Techniques described herein convert digital images into images suitable for use as coloring book pages and the like. The techniques include applying a smoothing operator to at least one channel image of a digital input image to form at least one smoothed image. A scaling operator is then applied to the at least one smoothed image to form at least one scaled image. A tone equalization operator is then applied to the at least one scaled image to form at least one equalized image. An edge detection operator is then applied to the at least one scaled image to form at least one edge image. In addition, a threshold operator is applied to the at least one edge image to form at least one threshold image. A digital line drawing is then created based at least in part on the at least one threshold image.

主权项

1. A method of converting a digital image to a digital line drawing, the method comprising:
applying a smoothing operator to at least one channel image of a digital input image to form at least one smoothed image; applying a scaling operator to the at least one smoothed image to form at least one scaled image; applying a tone equalization operator to the at least one scaled image to form at least one equalized image; applying an edge detection operator to the at least one scaled image to form at least one edge image; applying a threshold operator to the at least one edge image to form at least one threshold image; and creating a digital line drawing based at least in part on the at least one threshold image.