重采样

Given a planar point set,the moving least squaremethod is adopted to denoise and resample it so that the resulting point set is with low noise and uniform sampling density.Then the reliable signed distance field of the preprocessed point set is constructed by using the Level Set method.Finally,an algebraic B-spline function is adopted to fit the signed distance field by solving a linear equation system.

首先给定一个表示封闭曲线、可能带有噪音且分布不均匀的平面点云，采用移动最小平方(moving least square，简称MLS)方法对点云去噪、重采样，得到一个低噪音、分布均匀的"线状"点云，再通过Level Set方法建立该"线状"点云的离散几何距离场，最后用一个代数B-样条函数光顺拟合该离散距离场，代数函数的零点集即为重建曲线。

The experimental results show the two practical algorithms can preserve inaudibility and they are robust enough to against the different signal processing operations. In addition, the watermarking information can be embedded into the original audio signal adaptively, which also doesnt require the use of the original audio signal for detection. Furthermore, it can resist the different attacks, such as lossy compression (MP3), filtering, resampling and requantizing, etc.

仿真实验结果表明，两种方法都具有较强的鲁棒性和不可感知性，水印嵌入容量的自适应性，提取水印时不需要原始音频信号的参与，且对包括MP3有损压缩、低通滤波、重采样/重量化等多种攻击性试验具有较强的稳健性，是可行的数字音频水印算法。

Supported effects which can be processed in batch mode include: Adjust HSL, Adjust RGB, Blend, Brightness, Buttonize, Color Depth, Contrast, Crop, Draw Text, Motion Blur, Mosaic, Perspective, Pinch, Posterize, Resample, Resize, Ripple, Rotate, Sharpen, Soften, Solarize, Swirl, Auto Contrast, Blur, Diffuse, Dilate, Emboss, Equalize, Erode, Flip, Median, Mirror, Negate, Outline, Replace Colors, Colorize, Merge.

支持的影响可以处理在批处理模式包括： hsl调整，调整的RGB ，共混物，亮度， buttonize ，颜色深度，相反，作物，制定文本，运动模糊，马赛克，角度来看，箍缩， posterize ，重采样，大小，纹波，旋转，锐化，柔化，曝光，漩涡，自动调整对比度，模糊，弥漫性，扩张， emboss ，平衡，削弱，倒装，中位数，是一面镜子，否定，纲要，取代的颜色， colorize ，合并。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。