Shaded watermark: watermark with opaque rather than tranaparent appearance.
暗调水印:有着遮光而并不是透光现像的水印。
On Crack-preventing Measure in Concrete of Lugouqiao Burried Culvert of South-to-north Water Transfers Project
南水北调卢沟桥暗涵混凝土防裂措施
Environmental effects of excavation of the Beijing west-fourth ring underground tunnel project for the South-North Water Diversion
南水北调中线西四环暗涵工程暗挖施工对环境的影响研究
Controlled Blasting Practice on the Foundation Excavation of the East River in the South-to-North Water Transfer Project
南水北调东河暗渠基础开挖控制爆破实践
Lining concrete crack prevention experience in covered culverts of south-north water transfer project
南水北调暗涵衬砌混凝土裂缝防治经验
An improved watermarking method for halftone images
一种改进的半调数字图像水印方法
Digital Halftone Watermark Based on Hybrid Halftone;
基于混合加网的半色调水印技术研究
Digital Watermarking Algorithms Based on HVS for Halftone Images;
基于HVS的半色调数字水印算法研究
A piece of paper used on a press tympan to vary the pressure that produces light and dark tones.
轮廓纸为调整印刷压力而覆在调压滚筒上的纸，产生明暗相间的色度
Research on HVS-Based Adaptive Blind Watermarking Algorithm and Halftone Images Watermarking Algorithm;
基于HVS的自适应盲水印算法和半色调图像水印算法研究
Research on DWT-Based Adaptive Blind Watermarking Algorithm and Halftone Images Watermarking Algorithm;
小波域自适应盲水印算法和半色调图像水印算法的研究
Digital Watermarking Algorithms Based on Threshold-Adjustment for Halftone Images;
基于阈值调整的半色调数字水印算法研究
Study on type of air valve for PCCP pipeline and buried culvert of water conveyance system for Mid-route of South-to-North Water Transfer Project
南水北调中线工程PCCP及暗涵输水系统空气阀型式研究
Analysis on effect of groundwater on design of buried culvert under West No.4 Ring Road in Beijing for Mid-route of South-to-North Water Transfer Project
地下水对南水北调中线西四环暗涵工程设计的影响分析
The latest research has investigated the implications of the burn holes and water marks.
最近的研究调查出这与烧焦的洞和水印牵连。
The Research of Spread Spectrum and Phase Modulation Techniques Applied in the Digital Watermark;
扩频及调相技术在数字水印中的应用研究
Watermarking algorithm for halftone image based on edge and model
基于边缘和模型的半色调图像水印算法
Text Watermarking Algorithm Based on the Tone of Chinese Characters and Genetic Algorithm
一种基于遗传优化和汉字声调的文本水印算法