数字图像打印要点.docx

《数字图像打印要点.docx》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、(1)名词解释RGBRedGreenBlue,红绿蓝三原色CMYKCyanMagentayellowblacK,青、品红、黄、黑，用于印刷的四分色HISHorizontalSituationIndicator水平位置指示器FFTFastFourierTransformAlgorithm(method)快速傅氏变换算法CWTcontinuouswavelettransform连续小波变换DCTDiscreteCosineTransform离散余弦变换DWTDiscreteWaveletTransform离散小波变换CCD

2、ChargeCoupledDevice电荷耦合装置Pixel:adigitalimageiscomposedofafinitenumberofelements,eachofwhichhasaparticularlicationandvalue,theseelementsarecalledpixel像素DCcomponentinfrequencydomain频域直流分量GLHGrayLevelHistogram灰度直方图Mather(basic)wavelet:afunction(wave)usedtogeneratea

3、setofwavelets,母小波，用于产生小波变换所需的一序列子小波Basisfunctionsbasisimage:thereisonlyonesetofakforanygivenf(x),thenthe少k(x)arecalledbasisfunctions基函数基图像Multi-scaleanalysis多尺度分析F(h)=加4Gaussianfunction:isafunctionoftheform:forsomerealconstantsa0,b,c0,ande=2.718281828(Euler'numb

4、er).对于一些真正的常量0,b,c0,和e=2.71828182年拉数)。高斯函数sharpeningfilter锐化滤波器Smoothingfilter/convolution平滑滤波器/卷积smoothingfilterareusedforblurringandfornoisereduction平滑滤波器用于模糊处理和降低噪声/卷积Imageenhancement/imagerestoration图像增强和图像恢复空间域滤波Spatialdomainfiltering:频率域滤波Frequencydomainfi

5、ltering:Frequencydomainfilteringwithavariablefrequencyforthesignalfiltering以频率作为变量对信号进行滤波空间分辨率：spatialresolutionisameasureofthesmallestdiscernibledetailinanimage.图像中可辨别的最小细节的度量灰度分辨率：Intensityresolutionreferstothesmallestdiscerniblechangeinintensitylevel.灰度分辨率是指在

6、灰度级中可分辨的最小变化取样sampling:Digitizingthecoordinatevaluesiscalledsampling.对坐标值进行数字化量化quantization:Digitizingtheamplitudevaluesiscalledquantization.对幅值数字化图像压缩：Imagecompression,theartandscienceofreducingtheamountofdatarequiredtorepresentanimage.图像压缩是一种减少描绘一幅图像所需数据量的技术和

7、科学.(2)问答题1.CiteoneexampleofdigitalimageprocessingAnswer:Inthedomainofmedicalimageprocessingwemayneedtoinspectacertainclassofimagesgeneratedbyanelectronmicroscopetoeliminatebright,isolateddotsthatarenointerest.2.Citeoneexampleofspatialoperation举个空间操作的例子Answer:Int

8、hedomainofmedicalimageprocessingwemayneedtoinspectacertainclassofimagesgeneratedbyanelectronmicroscopetoeliminatebright,isolateddotsthatarenointerest.1.Citeoneexample