《边缘检测 中英文翻译》由会员分享，可在线阅读，更多相关《边缘检测 中英文翻译（17页珍藏版）》请在金锄头文库上搜索。
1、DiitalImgPren a dge DtctonDigitalImae PrcsigInteret indigitimage oessing ethos se rm twpiciplaplcao areas:improement of pictial inomaion foruman ntrpetatio; and rocessigoimge ta for orge， ansission, adrepsntinfor autnomouminprceptio。n mge my b died as woimina unctn, f(x,y）， hee xan yre satial(ane) c
2、oordinats，andth alie of f at any pai of coordinat (x, y) is calledteitesty r gray level of the mage at tt pointWhen x， y, an teamplide valeso refnite， iscete uantities, wecall he imagea igtal image。 hefeldfigtal iage processinrefers t procsng diitl img by means of a igitl comuter. Noteat a digital i
3、mag s op of afiitenumber ofeleets， each of which hs aparticular otin and vaue he elements are ree to as picur elmets, mge elemts， pls，d pixls。Pixe ithe term mos wiey ue odote he elemnt f gial mage。ison is thmot dd of our senes, so it isno surprisin th mage play te single mot mportan role i u percept
4、on Howeer,unlike humans， wo areimied to t visuaan o the eectromgetic (EM）sectum, imig acine cove almos the entr M scrum, ranging fm gaa o adio aves. anoperate on iages geeraeby srces t hmans are ot acustome to asociatig i ages Tese iclud ultraound， electrn micsc， and comuter enratedimages.Tus,ditl i
5、mageprocesin encomases a i and arie fl f pliction.Thres general agreemen auhos rerdig wher imgeprocesin stps andotr rlated are, sch siage analysisand oputervisin,sar Sometimesa isintion is made by defniagprocssing a a disciple i wichboththeinput andoututo a pocess e iags W eieve thist be lmiting ad
6、somewhat arifical onary. For exmple，ndrthis defnitn,even thetriviatask of cutn te averae innit f nmage (which yiela sile nmber) wul ntbe cnsered a imge rcesng opein. Ohe ter hand,thre are fild su as comutervsio whose ultimae oli te compuers to emuatehua visio, iding learng anbein abl to a inferenc a
7、ndtake ctions en vsual put。 Ts area iseisabrch f artfiial teligence（） hoseobjecti is eulate umnelienc The ield f I isin t earlies stgeoinfan n es of developent， wth pogrsshavin ben much lower hoiallyicpate. T re of imageanalyi (als caledimage undrstndng) i in betwen mage ocssing n compu viionTherear
8、 no clarc oundarie in thecontinu frm imarocei a oneedtoomputr visin the oher. However， oe ul aradgmis to onider three ty ofcomputerid processsin thsconuum: lo， mi，an ghlvl procss.Lowlevel pocees inolv rmitive oetions sch as imge prproesingto reduce nose，cntra enhanceent， an mage saenng. Ao-leel proc
9、ess s characterze ythe fat tat both ts nputs ad uput areiags. Md-evel pocessing n mags nvolves tasksuch as egmentaion (paitinan iagei rgions or objcs), descriton o h objects o rdue themto afm suitle fr comuterproessig, ndlassifiation （rgntion)of indvia ojects. A milevelprces schaaterze bthefact that
10、 ts puts enerallae iges，ut is outsre attrbutsexacted rom thos iag（e., dges，conturs，andtheidentit ofindivdua objcts)。 iny， ihereve ocessin inoles “makingss” of an enembl f cognizeojets， as n ige alyi, n, at the fandheotum， prfori the giti functions nrmaly asocited with visn。sed on theprecdigoments, e
11、 see taa logicl place foveap between imaerocssg an maganaysisithe aa of recognition of iniviual region bjcts in aimag. hus， what we callithis ook digital imag procesing enosse processeshos nuts oputs aremaes a， in additon,enompass rcesestht exr aribues from imges, uptandinludig he recogntioof inivid
12、ua bjects. s a simpleiluraoto clariy thes ocepts, onsdre ara of auomateanais of ext. The pocesses of acuiringan ima of the area conainig thetex， epocessin that age,extrcting （sgmentng） the indivdual haes， descbng te carat inaom sitblefor mpue procesin, andrecogniig thse indiidaharaces are the scoe te alldtal ige processing i this bok。 Makng sese f he ontt of he pagemy b view as bing n he doma ofmge alyis ad eve compuer visi, eedi on tel
