The Scientific World Journal / 2013 / Article / Tab 1

Research Article

An Efficient and Self-Adapted Approach to the Sharpening of Color Images

Table 1

Comparisons of the sharpened images with respect to original images in terms of PSNR.

ImageDimensionEdge sharpening images
(a) HVD without LPF(a) HVD with

House512 × 51268.6359.0654.5969.1259.5555.0839
F-16512 × 51279.5569.9065.4280.4370.7866.3038
Peppers512 × 51286.4177.0272.5888.8479.4975.0641
Woodland Hills, CA 512 × 51262.2752.7548.3262.9053.3848.9541
Lena512 × 51285.9076.4172.0086.7377.2672.8436
Sailboat on lake512 × 51273.0963.4859.0073.9164.3059.8236
Baboon512 × 51266.3056.7252.2166.6657.0752.5639
Foster City, CA512 × 51279.1569.4664.9680.7471.0866.5932
Tiffany512 × 51277.3168.9865.1678.3270.0166.1958
Neck504 × 70088.7678.6073.9391.0380.8876.2120
Moon surface256 × 25676.0466.4061.8778.4668.8364.3031
Goldhill720 × 57676.3966.6762.1477.3767.6563.1223

” is scaling factor between 0 and 1.
Low-pass filtering (LPF) and edge sharpening is for edge pixel only.

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