A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image

Figure 4

Comparison of traditional interpolation method and our method. Because the image resolution is too high after magnifying, we only showed the dotted line area of original image: (a) original image; (b) nearest-neighbor interpolation method; (c) our proposed scaling interpolation method.

(a)

(b)

(c)