Abstract |
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The subject of extracting particular high-resolution
data from low-resolution images is one of the most important
digital image processing applications in recent years, attracting
much research. This paper shows how to improve the
resolution of real images when given image is in the degraded
form. In the superresolution restoration problem, an improved
resolution image is restored from several geometrically
warped, blurred, and noisy and downsampled measured
images. To obtain this result the use an iterative nonlinear
restoration blind deconvolution maximum likely-hood
algorithm imposing the low frequencies complete data of the
original low-resolution image and the high-resolution data
present only in a fraction of the image which suppresses the
noise amplification and avoid the ringing in deblurred image.
Our results show that a high resolution real image derived
from superresolution methods enhance spatial resolution and
provides substantially more image details. |