Tải bản đầy đủ - 0 (trang)
Section 8. About Finding Images with Image Search

Section 8. About Finding Images with Image Search

Tải bản đầy đủ - 0trang

ButsomesignificantdifferencesexistbetweenusingGoogle

ImageSearchandusingGoogle,andtheyhavetodowiththe

natureofimagesthemselves.

InanormalGooglesearch,Googlelooksthroughtextithas

indexedfromhundredsofmillionsofwebpages.Usinga

complicatedseriesofrules,itdecideswhichpagesbestmatch

yoursearchterms.

Withimages,though,thingsaredifferent.Animageisnot

madeupoftext;itcontainsnowords.Assmartacompanyas

Googleis,itssearchenginecannotexamineapictureandknow

whatit'sapictureof.ToGoogle,apictureofazeppelinisno

differentthanapaintingbytheRenaissanceartistCaravaggio

oraphotographofHawaii.Basically,toGoogle,allthreeof

theseimagesarejustbunchesofbits.

SohowcanGoogleknowwhatthosepicturesareifitcan't

decipherthem?ByusingdetectiveworkthatevenSherlock

Holmeswouldenvy.Forastart,itlooksattheimage'sfilename.

IfthefilenameisCaravaggio.jpg,forexample,there'sagood

chancethattheimagecontainedinthefileiseitheraportraitof

CaravaggioorapaintingbyCaravaggio.

Googlealsolooksatthetextneartheimageonawebpageas

wellasatthetextontheentirewebpage.Veryfrequently,web

pagesincludeacaptiondirectlyabove,beneath,ornexttoan

image.Googlecanassociatethatcaptioninformationwiththe



image.Inaddition,othertextonthewebpageitselfprovides

moreinformationabouttheimage,andGoogleextractsthat

informationaswell.Asanexample,lookatthenearbyfigure.

ThepageisabiographyofthepainterCaravaggioandincludes

imagesofhispaintings,withthenamesoftheimagesandmore

informationnexttoeachpainting.

Sokeepinmindwhenyou'redoingyourGoogleImageSearch

thatyou'reactuallysearchingforinformationGooglecanfind

abouteachimage.Asyou'llseein PerformanAdvanced

ImageSearch,thisknowledgecanhelpyoubetternarrow

yoursearch.

Googlecanextractinformationfromthispagetohelpitindex

everyimageonthepage.



[Viewfullsizeimage]







9.BrowseThroughImageSearchResults

BEFOREYOUBEGIN



AboutFindingImageswithImage

Search



SEEALSO



AboutInterpretingGoogleResults

BrowseThroughSearchResults



WhenyoudoasearchonGoogleImageSearch,thesearch

resultsarenotthesameastheyarewhenyoudoanormal

Googlesearch.Thistaskshowsyouhowtobrowsethroughthe

results.



BrowseThroughImageSearchResults



GotoGoogleImageSearch

GettotheGoogleImageSearchbygoingto

http://images.google.comorbystartingattheGooglehome

page(www.google.com)andclickingtheImageslinkjust



Tài liệu bạn tìm kiếm đã sẵn sàng tải về

Section 8. About Finding Images with Image Search

Tải bản đầy đủ ngay(0 tr)

×