《matlab數(shù)字圖像處理初步實驗》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學術(shù)論文-天天文庫。

1、實驗一MATLAB數(shù)字圖像處理初步總共1o小題一、實驗?zāi)康募耙髮W習在MATLAB環(huán)境下對圖像文件的I/O操作，為讀取各種格式的圖像文件和后續(xù)進行圖像處理打下基礎(chǔ)。1.熟悉及掌握在MATLAB中能夠處理哪些格式圖像。2.熟練掌握在MATLAB中如何讀取圖像。3.掌握如何利用MATLAB來獲取圖像的大小、顏色、高度、寬度等相關(guān)信息。4.掌握如何在MATLAB中按照指定要求存儲一幅圖像的方法。5.圖像間如何轉(zhuǎn)化。二、實驗設(shè)備與軟件1.PC計算機像處理工具箱(ImageProcessingToolbox)2.MAT

2、LAB軟件/語言包括3.實驗所需要的圖片三.實驗內(nèi)容1.利用imread函數(shù)讀取一幅圖像，假設(shè)其名為flower,tif,存入一個數(shù)組中；?l=imread(9pout.tif9);NewtoMATLAB?WatchthisVideo,seeDemos,orreadGettingStarted.NameMAILABdesktopkeyboardshortcuts,suchasCtrl+S,arenowcustomizable.Inaddition,翼anykeyboardshortcutshavechange

3、dforimprovedconsistencyacrossthedesktop.Iocustomizekeyboardshortcuts,usePr亡f令r令nc令s.Fromthere,youcanalsorestorepreviousdefaultsettingsbyselectmgR2009aWindowsDefaultSet"fromtheactivesettingsdrop-downlist.For霣oreinformation,seeHelp.Clickhereifyoudonotwanttose

4、ethisMessageagain.?I=imread(,pout.tif):fx?rnCommandHistoryValue<291x240uint曰…X~15-3-23下牛5:15I=ijnread(zpout.tif*):2.利用whos命令提取該讀入圖像flower,tif的基本信息;?whosI?I=imreadCpout,tif'):>>whosIBytesClassAttributesNameISize291x24069840umt8A?13.利用imshow函數(shù)來顯示這幅圖像;?imshow(

5、l)inaddition^mapacrossthedeskTocustomizekerestoreprevioufromtheactiveClickhereify>>I=imreadCpou>>whosINameSiI,o，?d八y個廣，，個c*廣IFigure1FileEditViewInsertToolsDesktopWindowHelpQ己H4Ifel'嘆r;??X▼I③丨口29lx>>imshow(I)A?3.利用imfinfo函數(shù)來獲取圖像文件的壓縮，顏色等等其他的詳細信息;?imfinfopout

6、.tif>>lmfinfopout,tifans=Filenaae:pout,tFileModDate:*2卜三月-201300:00:00*FileSize:69004For戴at:*tirFormatVersion:[]Width:240Height:291BitDepth:8Colorlype:'grayscale'FormatSignature:[7373420]ByteOrder:#little-endian*NewSubFlieType：0BitsPerSanple:8Compression:'P

7、ackBits*Photometnclnterpretation:’BlaclcIsZero*StnpOffsets:[9x1double]SamplesPerPixel:1RowsPerStnp:34StripByteCounts:[9x1double]AXResolution:72▼3.利用imwrite函數(shù)來壓縮這幅圖象，將其保存為一幅壓縮了像素的jpg文件，設(shè)為flower,jpg;語法：imwrite(原圖像，新圖像，‘quality’，q)，q取0_100。?imwrite(l/flower.jp

8、g,/quality,580)6.同樣利用imwrite0函數(shù)將最初讀入的tif象另存為一幅bmp像，設(shè)為flower.bmpo＜同上＞?imwrite(I,'flower,jpg.,quality',80)A?7?用imread函數(shù)，讀入圖像：Lenna.jpg和camema.jpg;由于文件中只有l(wèi)ena.bmp和camera.gif,所以要用imwrite函數(shù)，將兩個圖另存為。imwrite(