抄録
The biggest objective and subjective loss of quality using the widely spread bicubic algorithm is at the supposed
sharp edges of an image. This study focuses on developing an algorithm to restore the sharpness by using un
-
sharp masking
influenced
by the intensity of edges in each area.
Testing this algorithm on 97
monochrome
standard images results in up to
1dB improvement PSNR in nearly all cases, showing that the quality improved objectively. Subjective testing results favoured
all the filtered i
mage compared to the bicubic picture.
