Digital Image Sharpening Processing based on MATLAB Software

With the development of science and
technology, the application of digital image technology is
more and more extensive, such as aircraft remote sensing
and satellite remote sensing technology in aerospace
technology, ultrasonic image processing in biomedical
engineering, communication engineering wavelet
transform image compression coding. As a part of digital
image preprocessing, image sharpening plays an
important role in enhancing and extracting the edge and
contour of the scene in the image. This paper mainly
studies single-direction first-order differential sharpening
and directionless first-order differential sharpening.
Relevant simulation codes are written by MATLAB
software, and then corresponding conclusions are drawn
by comparison.