图像处理实验指导书(英文).doc

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1、实验一数字图像的基本认识Experiment1IntroductionofDigitalImageI.experimentalpurpose.1.Befamiliarwiththefilestructureofdifferenttypesofimages,andmasterthereadingandwritingprocessofimagefiles.2.Masterthecalculationmethodsofvariousstatisticalindicatorsofimages.II.Experimentalprinciple.1.Basictypesofimages

2、.Inthecomputer,theimagecanbedividedintobinaryimage,grayscaleimageandtruecolorRGBimageaccordingtothecolorandgrayscale.2.DiscreteconvolutionFordiscretesequences,convolutioncanbeobtainedbyasimilarmethodtocontinuousfunctions.Therefore,theconvolutionformulaoftwosequenceswithtwolengthsmandnis:Th

3、eaboveformulagivesanoutputsequenceoflength.Discreteconvolutionandcontinuousconvolutionindigitalimagehavealmostcorrespondingproperties,whichcanbedescribedbycontinuousconvolution.3.Grayhistogram.Grayhistogramisafunctionofgrayscale,describestheimagewiththenumberofpixelgrayscaletheabscissaisgr

4、ayscale,ordinateisthefrequenciesofthegrayscale(thenumberofpixels).Itisworthnotingthatthehistogramonlyreflectsthefrequencyofdifferentgrayscalevaluesintheimage,anddoesnotreflectthelocationofagrayvaluepixel.Differentimagesmayhavethesamehistogram;Thesumofthehistogramofeachsubregionofanimageise

5、qualtothehistogramofthegraph.预备知识：　　读取图像：F=imread(’e:图片.jpg’)　　显示图像：imshow(f)　　返回指定点的坐标和颜色值：[crp]=impixel(f)　　RGB彩色图像转换为灰度图像：rgb2gray(x)　　灰度图像转换为二值图像：im2bw(x)　　图像滤波（图像与模板卷积）：imfilter(x1,w,'replicate')，或用P填充边界　　获得图像直方图：imhist（f）三、实验题目1.编制一个程序，读取位图并显示在屏幕上，将图像数据化并显示结果，学会如何返回指定点的像素坐标。2.编制一个程序

6、，将RGB彩色图像转换为灰度图像，将灰度图像转换为二值图像。3.编制一个程序，实现二维离散卷积，用于对图像滤波。4.编制一个程序，对任意图像统计灰度值，并在屏幕上绘出直方图。四、实验步骤１．编写程序。２．调试程序。３．写出程序运行结果。五、实验要求1.提交题目1、2的源程序清单、程序流程图及代码各部分的详细说明。2.提交题目3的原始图像和直方图结果。实验二数字图像的基本运算Experiment2OperationofDigitalImageI.experimentalpurpose.1.Understandtheconceptsofpointoperation,algebr

7、aicoperationandgeometricoperation.2.Graspthebasicmethodsofgrayscaletransformation,gradientamplitudeandgeometrictransformation.II.Experimentalprinciple.1.ThepointofoperationInimageprocessing,pointarithmeticisasimplebutimportantclassoftechnologythatallowsusersto