Image Sharpening Algorithm and Implementation for Small Size TFT-LCD
Tingcun Wei · Chinese Journal of Liquid Crystals and Displays · 2009
An image sharpening algorithm for small size TFT-LCD was proposed based on the architecture character of one-chip TFT-LCD driver IC. The proposed algorithm uses a novel unsharp masking algorithm. By considering the characteristics of the human visual system and adding the energy dispersion filter, the proposed algorithm improves the sharpen result by reducing the noise and overshoot artifacts and avoiding the color distortion. The proposed algorithm is easy to be implemented and has a very low hardware cost, furthermore, the quality of image can be optimized by adjusting registers' values. The proposed algorithm especially suits for small size TFT-LCD devices,such as cell phone, etc.