Enlarging a digital image

Details Enlarging a digital image Enlarging a digital image

2008-01-08

2011-12-13

Desire, Gregory M (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C345S698000

Reexamination Certificate

active

08078007

ABSTRACT:
Enlarging a digital image. In one example embodiment, a method for enlarging a digital image includes various acts. First, an enlargement factor λ is selected for an input image. Next, a pixel in the input image is selected. Then, a supporting window is placed over the input image. Next, a λ×λ block of output pixels is produced. Each pixel in the block of output pixels is produced using a set of λ2distinct weight matrices. Then, the block of output pixels is assembled into an output image. Next, the acts of selecting a pixel, placing the supporting window, producing a block of output pixels, and assembling the block of output pixels into the output image are repeated for each of the remaining pixels in the input image.

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