将矢量图转换为光栅图也很简单，可反过来则不行。
It is also very easy to convert from vector to raster formats, but the same ease doesn't hold true vice-versa.
这种情形中最大的错误在于使用了光栅图而非矢量图。
The bigger mistake, in this case, is using raster rather than vector images.
本文研究了将TIFF/IT格式的光栅图象文件转换成PDF文件的方法。
The paper investigates a method to convert pages of the TIFF/IT format into those of the PDF format .
矢量图无论放大多少都不会损失图片质量，而光栅图(或位图)一旦放大就会出现锯齿。
Vector images can be blown up to any size without loss of quality. Raster (or Bitmap) images become jagged when made larger.
写本文是出于，有的工作中偶尔会需要用到矢量图，当然有时也需要用到光栅图(比如摄影)。
There are times when working with vector images is what's called for. Of course, there are also times (like photography) when you have to go with raster images.
研究了光栅图象的投影、采集及预处理方法，并对得到的被测物体表面三维数据点进行重构显示。
The preprocessing methods of grating image are studied, and the 3d object surface data is reconstructed.
导致logo设计失败的原因形形色色，但你只要看到，就会知道：剪贴图、光栅图不相关的想象和选择不当的字体。
The things that make a logo truly awful aren’t easy to define, but you know a bad one when you see it – clip art, raster graphics, unrelated imagery and poor choices in typeface.
现有的交互式电子技术手册（IETM）解决方案主要有光栅图、电子文档化和数据库三种，它们既有独特之处，又有各自的局限性。
There are three current projects about the digitized technical manuals, including raster image, archives and database. Each of them has its characteristics and limitation.
可以用胶片、全息图和光栅作为滤波片。
本文叙述了利用光栅调制漂白法对医学黑白图象的处理过程，并介绍了典型病例。
The process of black-white medical pictures by grating modulation decolorization method was described with analysing typical cases.
实验中制作出了高衍射效率和信噪比的体积全息光栅和反射全息图。
The holographic volume gratings and reflection holograms having high diffraction efficiencies and signal noise ratio are also fabricated in experiment.
说明傅里叶频谱面的滤波处理及编码光栅的衍射效率对图象输出信噪比的影响。
This is mainly influenced by the filtering process in Fourier plane and the low diffraction efficiency of the encoding grating.
图。2…双光栅单色仪结构图。
方法：用平面光栅摄谱仪拍摄未知样品之原子发射光谱图，并作定量分析。结果：测定营养品中微量元素的含量。
Methods:Use the Grating Spectrograph to take photograph of atomic emission spectrum of unknown sample and make quantitative analysis Results:Quantitative determination of trace elements in nutriment.
介绍了平场全息光栅、图象全息光栅、超环面全息光栅、激光全患光栅和闪耀全息光栅的新进展。
The new development of flat field holographic gratings, monographs holographic gratings, toroidal holographic gratings, laser holographic gratings and blazed holographic gratings are discussed.
虚光栅移相莫尔条纹法是一种对静态干涉图的处理方法。
The virtual grating phase shifting moire fringe is a method to manipulate the static interferogram with carrier fringes.
利用该方法对资源卫星图片世行翻拍、滤波和光栅调制，实现图象的反差增强和假彩色增强。
Increases both in image contrast and in image color are completed by duplicating ERS image, filtering and grating modulation.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
利用此结论创建用于压缩的二值掩模矩阵，并对光栅投影图之一的位相图进行基于离散余弦变换的压缩。
Using this conclusion and considering the characteristic of grating projective images, the paper creates the 0-1 value mask to compress the DCT coefficient matrix.
本文用有效光源法分析了正交光栅干涉仪的干涉图。
The interference pattern of a cross-grating interferometer is analyzed by the so-calledeffective source approach.
为了增强点阵光栅全息图的闪耀效果和获得奇妙的动态视觉效果，作者在实验中采用了两项特有的单元技术，即光斑整形和像元移位。
Two unique techniques, spot shaping and pixel shifting, are adopted for improving sparkling and kinetic visual effects of dot matrix hologram in our experiments.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
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