Ukuhlukaniswa kwesibili ngenxa yephethini yeminwe ye-residial esithwebuli somunwe

Indawo esele yendawo yokuthungwa yendawo engaphambili ekuhlukanisweni kwengxenye yokuqala ihlukaniswe yileveli yesibili.

Inhloso yesiqeshana sokuqala ukuhlukanisa indawo ebekiwe endaweni engabhaliwe, kanye nokuhlukanisa indawo ebekiwe ngokubala okuqondile okuqondile nendawo ebalwa. Ngakho-ke, uma isithombe seminwe siqukethe izindawo ezenzelwe abebekhona ezifundwayo, uma ukuqondiswa kubalwa kahle, lezi zindawo ezibekiwe ezibekiwe zibaluleke kakhulu. Ingahlukaniswa njenge-block engaphambili ekuhlukanisweni kokuqala, futhi indawo ye-residial ukuthungwa ibhekwa ngokwahlukana. Lolu hlobo lwendawo lunesakhiwo se-testture, kanye nendawo yokuthungwa eyinsalela ezithombeni ezimbili zeminwe kungenzeka kube nezindawo ezifanayo endaweni engeyona eyosalayo ezithombeni ezimbili zeminwe. Ngakho-ke, kunzima nge-algorithm yokuhlukaniswa ukwahlukanisa indawo ye-resurial ukuthungwa, indawo engabhalwanga kanye nendawo engasanyelwanga ngokuhlukaniswa okukodwa. Ngesithombe esiqukethe indawo ye-residual ukuthungwa, ngaphakathi kwesithombe esifanayo, indawo esele yokuthungwa kanye nendawo yokuthungwa eyinsalela ekhona ngale ndlela elandelayo: umehluko ngemvelo:
1. Inani elimpunga lokwehla endaweni ye-residual ukuthungwa ngokuvamile likhulu kunenani elimpunga yokwehla endaweni engeyona eyosalayo.
2. Umehluko we-grayscale phakathi kohlamvu nezigodi zokusanhlamvu endaweni yokusala okuseleyo mncane kunalokho okusanhlamvu nezigodi zokusanhlamvu endaweni yokusanhlamvu engasapheli.
Lokhu okungenhla kuyisici esivumelanayo esivumelanayo sendawo ye-resiual ukuthungwa nendawo yokuthungwa okusalayo esithombeni esinendawo yokubeka izisulu. Ngakho-ke, phakathi nengxenye yesibili, i-block engaphambili yomphumela wokuhlukaniswa kokuqala iskena ibhulokhi ngebhulokhi, futhi izici zomuntu ngamunye zibalwa:
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. Afushanise amanoni, athathe ifomula (2.23) ukubala.
Lesi siqeshana sesibili emshinini wokufika we-Fingerprint sibaluleke kakhulu ohlelweni lokulawula ukufinyelela zeminwe, futhi lusiza kakhulu ekuthuthukisweni kohlelo uma lusetshenziswa kahle.