Patent ID: 8823774

Claim:
An apparatus for processing a digital image, comprising: an image sensor unit configured to sense a hand-drawn sketch and to convert the sensed hand-drawn sketch to the digital image, wherein the hand-drawn sketch corresponds to a physical sketch being expressed with a liquid or solid substance; an image storage unit configured to store the converted digital image; an image display unit configured to visualize the stored digital image to a virtual hand-drawn sketch; and a controller configured to: sense, through the image sensor unit, a first hand-drawn sketch on a first sketching plane and store the sensed first hand-drawn sketch as a first digital image; detect a second sketching plane which is different from the first sketching plane; visualize the stored first digital image as a first virtual hand-drawn sketch on the second sketching plane; sense, through the image sensor unit, a second hand-drawn sketch being drawn on the second sketching plane, while the first virtual hand-drawn sketch is visualized on the second sketching plane, and store the sensed second hand-drawn sketch as a second digital image, wherein the first sketching plane and the second sketching plane exist in different times and different places providing the first virtual hand-drawn sketch as a 3-dimensional virtual view and the second hand-drawn sketch.