The Blind Deconvolution Algorithm can be used effectively when no information about the distortion (blurring and noise) is known. The algorithm restores the image and the point-spread function (PSF) simultaneously. The accelerated, damped Richardson-

Watermarking embeds information into a digital signal like audio, image, or video. Reversible image watermarking can restore the original image without any distortion after the hidden data is extracted. In this paper, we present a novel reversi

本文通过对两种显示器的对比，对两者优劣做出相对客观的评价。方法：对两种显示器的亮 度、对比度、分辨率、响应时间、视角、闪烁、几何失真和色彩等主要参数作对比，列出两种显示器 各自的优劣，且分析这些优劣对图像显示的影响。结果：LCD显示器在亮度、对比度、闪烁和几何失 真方面拥有优势。但在分辨率、响应时间和色彩表现力上尚有不足。结论：随着技术的发展，LCD显 示器具有取代CRT显示器的趋势。-Based on the comparison of the two displays on

lensfun is a library for correcting photo images. It can correct lens distortion, vignetting, chromatic aberrations, and also can convert between various lens types (rectilinear to fish-eye and so on). The library comes with a database that contains