Isisombululo semaski vs ubungakanani bokubonwa kwangaphambili

By Technical specialist

Isisombululo semaski kunye nobungakanani bokubonwa kwangaphambili ziyazalana, kodwa azilinganisi umlinganiselo ofanayo. Isisombululo semaski sichaza igridi yepixel egcina umxholo. Ubungakanani bokubonwa kwangaphambili buchaza ukuba umkhulu kangakanani umhleli uzoba iziphumo kwiscreen sakho. Umboniso we-300-pixel-wide-wide unokumela umfanekiso omkhulu kunye nemaski; Usondezo lokujonga kuqala alongezi iinkcukacha zemaski entsha.

Ukubhidanisa ezi zimbini kunokukhokelela kwizigqibo ezibubuxoki. I-cutout inokubonakala igudile xa ifakelwe kwiphaneli encinci kwaye iveze ihalo kubungakanani bokuthumela ngaphandle. Inokujongeka ijagged kwi-zoom egqithileyo nangona ezo pixels zemaski zingabonakali kusetyenziso oluqhelekileyo.

Ubukhulu obuthathu bunokubakho kuhlelo olunye

Ukuhamba komsebenzi wokusika isikhangeli kunokubandakanya ubuncinci izithuba ezithathu ezilungelelanisiweyo:

1. Ubungakanani bomthombo: ububanzi obuchaziweyo kunye nobude bomfanekiso okhethiweyo.
2. Intelekelelo okanye ubungakanani bemaski esebenzayo: igridi ekubalwa kuyo ugutyulo lwesifundo luze luhlelwe.
3. Imboniso yobungakanani: umboniso olinganisiweyo olingana nendawo yomhleli okhoyo.

Ezi sayizi zinokuhambelana, kodwa akufuneki. Umthombo omkhulu unokuncitshiswa ngaphakathi kwimodeli yokulinganisa ukulawula ixesha lokucubungula kunye nememori. Imaski enesiphumo emva koko inokukalwa kwindawo yokusebenza okanye yokuthumela ngaphandle. Ekugqibeleni, isikhangeli silinganisa indibaniselwano kwakhona ukuze ilingane isikrini.

Easy Background Remover inokusebenza imifanekiso emikhulu kakhulu kwisisombululo esincitshisiweyo sangaphakathi kwaye ibonise isilumkiso. Ukuthunyelwa ngaphandle kusajolisa kwimilinganiselo yomthombo. Oku kugcina imilinganiselo yemveliso iluncedo, kodwa ayinakuyila iinkcukacha zomphetho ebezingekho kwisigqubuthelo esibalwe ngaphakathi.

Ziivenkile zepixel yemaski

Imaski ayinyanzelekanga ukuba ibe yistensile emnyama okanye emhlophe. Iphikseli yemaski nganye inokubamba ixabiso le-alpha ukusuka ngasemva ngokugubungela ngokuyinxenye ukuya kumxholo ogcinwe ngokupheleleyo.

Kumda wento enzima, inguqu inokuthatha kuphela ibhendi emxinwa. Kwiinwele ezithambileyo, uboya, ukufiphala, okanye isithunzi, amaxabiso aluncedo angaphelelanga kwindawo ebanzi. Xa imaski ilungiswa ngokutsha, uguqulelo luqikelela amaxabiso phakathi kweesampulu zemaski zokuqala.

I-interpolation inokwenza inguqu ibonakale ilula. Ayinako ukuphinda ibume kanye ubume bentambo ethe yanyamalala ngexesha lokuqikelelwa kwesigqibo esisezantsi. Ukuguda kunye neenkcukacha ezifunyenweyo ziimpawu ezahlukeneyo.

Kutheni umboniso ofakiweyo ufihla iziphene

Xa umhleli elingana nomfanekiso omkhulu kwiphaneli encinci, uninzi lweepikseli zomthombo negalelo kwipixel nganye ebonisiweyo. Imingxuma emincinci, imiphetho yepixel enye, kunye nealpha engalinganiyo inokulinganiselwa kude.

Oko kuluncedo ekuqulunqweni: unokugweba ukuba umxholo uphakathi kwaye ingaba ulwahlulo olubanzi luchanekile. Akwanelanga umgangatho womphetho.

Uphononongo oluthembekileyo lusebenzisa isikali esingaphezulu kwesinye:

• umbono ofanelekileyo wesifundo sonke; -i-zoom ephakathi yolwandlalo kunye nezikhewu zangaphakathi;
• ukusondeza okuphezulu kuphela kwiindawo ezikrokrelayo;
• ubungakanani obujoliswe ekusetyenzisweni kwesigwebo sokugqibela.

Ukuba umfanekiso uya kuba yi-avatar encinci, isiphene se-microscopic sinokungaze sibaluleke. Ukuba iya kuprintwa ibe nkulu okanye ibekwe phezu kwemvelaphi emnyama, isiphene esifanayo sinokubonakala.

Kutheni usondezo lunokwenza umphetho olungileyo ubukeke ungalunganga

Kwi-zoom ephezulu, umhleli wandisa ii-pixels ezicacileyo. Izitepsi zilindeleke kwidayagonal kunye nemida egobileyo kuba igridi yepixel ayiqhubeki. Inguqu ethambileyo inokukhangeleka njengebhendi engwevu ebonakalayo xa ipixel nganye yandiswa.

Umbuzo awukho ukuba iipikseli zibonakala kwiipesenti ezingama-800. Baza ku. Imibuzo eluncedo yile:

• Ingaba umda ukwindawo echanekileyo?
• Ngaba umda ujonge ngokwendalo kubungakanani obucetyiweyo bomboniso?
• Ngaba kukho umbala ongasemva omdala oxutywe kwiipixels ezingaphelelanga?
• Ingaba iinkcukacha ezibalulekileyo ezibhityileyo zigciniwe?
• Ngaba inguqulelo yealpha iyasifanela isihloko?

Sukucima iipikseli ezithambileyo ezisebenzayo ngenxa yokuba zijongeka zingwevu ngokuchasene nebhodi yokujonga xa usondeza kakhulu. Zivavanye ngemvelaphi eyiyo yokuqala.

Ubungakanani bomthombo awuqinisekisi iinkcukacha zomgangatho womthombo

I-PNG ethunyelwa ngaphandle inokuba nobubanzi kunye nobude obufanayo njengomthombo ngelixa imaski yayo yealpha isuka kwisisombululo esisezantsi. Ukunyusa iimephu ezigquma ubungakanani obupheleleyo bepixels ezinombala. Ubungakanani befayile buhlala buchanekile, kodwa ukuchaneka komda kukhawulelwe lulwazi olukwimaski esisombululo esisezantsi kunye naluphi na ukulungiswa kamva.

Oku kufana nokuzoba ulwandlalo olulula kwiphepha legrafu kwaye uyandise. Ulwandlalo olwandisiweyo lunokugudiswa, kodwa alufumani ukugoba okungazange kuzotywe.

Loo nto ayikwenzi ukuba intelekelelo encitshisiweyo ingabi namsebenzi. Izifundo ezininzi zinemiphetho ecacileyo, ebanzi, kwaye ubukhulu bangaphakathi obunengqiqo bunokubonelela ngolungelelwaniso olulungileyo phakathi kwesantya, ukusetyenziswa kwememori, kunye nomgangatho. Kuthetha ukuba iinkcukacha ezincinci zifuna ingqalelo ekhethekileyo.

Iibrashi zifuna ulungelelwaniso lwemephu

Xa upeyinta Yongeza okanye Cima imivumbo kumboniso owenziwe isikali, umhleli kufuneka enze imephu yolungelelwaniso lwesalathiso emva kwimaski esebenzayo. Irediyasi yebrashi nayo ifuna ukutolikwa okufanayo. Isangqa se-pixel ezilishumi kwiscreen akufuneki ukuba ngempazamo sibe luhlelo olwahluke ngokupheleleyo ngenxa yokuba umboniso wangaphambili ulinganisiwe.

Iiakhawunti ezintle zemephu ze:

• isikali somboniso kunye ne-offset;
• nayiphi na i-zoom kunye ne-pan yokuguqula;
• umthombo-to-mask isikali; -umlinganiselo we-pixel wesixhobo;
• irayidi yebrashi kunye nokuthamba.

Umahluko omncinci wokujikeleza awunakuphepheka, kodwa ukubetha okuphindaphindiweyo kufuneka kuhlale apho isalathisi sibonisa. Ukuba i-stroke ibonakala i-offset, qala ujonge ukuba ingaba i-canvas yafakwa okanye i-zoom ye-browser itshintshe uyilo ngaphambi kokuba ucinge ukuba imaski yemodeli ayilunganga.

Ukukhanya kunye nemvelaphi emnyama iveza iipikseli ezahlukeneyo

Ii-Checkerboards zinxibelelana ngokungafihlisiyo, kodwa aziluvavanyo lomgangatho jikelele. Iintsalela eziPale ezivela kwimvelaphi emhlophe zinokudibanisa kwizikwere ezikhanyayo. Umphetho omnyama unokunyamalala kwiindawo ezimnyama.

Hlaziya umphetho ofanayo ngaphezulu:

• umhlophe okanye omnye umbala okhanyayo;
• omnyama okanye omnye umbala omnyama;
• umbala kufuphi nendawo ekujoliswe kuyo;
• ukungafihli ukuba ukuthunyelwa ngaphandle kufuna ialpha.

Umphetho osebenza kuzo zontathu imvelaphi yomelele ngakumbi. Ukuba isiphumo sokugqibela sihlala sisebenzisa ukuzaliswa okusisigxina okunye, lungiselela indawo yokufikela kunokuleqa imfezeko yethiyori yonke indawo.

Iimaski, umbala omqukumbelo, kunye nokuchaneka okungeyonyani

Isisombululo semaski silawula apho utshintsho olucacileyo. Ayiwususi ngokuthe ngqo umbala wangemva omdala osele udityanisiwe kwiipikseli zomphetho womthombo. Imaski emile ngokuchanekileyo isenokuthi iveze ihalo ephaphathekileyo okanye enemibala xa umthombo ubufotwe kwimvelaphi eyomeleleyo.

Ukucutha isigqubuthelo sobuso kunokuwufihla loo mphetho ngokusika umbandela. Ukuyandisa kunokugcina iinkcukacha ezininzi kunye nombala omdala. Ulungiso oluchanekileyo lulinganisa imilo kunye nombala kwisayizi yendawo ekuyiwa kuyo.

Yiyo loo nto umyinge onamanani omnye ungenakuqinisekisa ukuthunyelwa ngaphandle okucocekileyo. Umgangatho we-Edge udibanisa ijiyometri yemaski, ialpha, umbala wemvelaphi, imvelaphi yemveliso, kunye nesikali sokujonga.

Ujongo olusebenzayo lokuthumela ngaphandle

Ngaphambi kokuthumela ngaphandle i-cutout ebalulekileyo:

1. Qinisekisa ukuba umboniso ubonisa imaski esulungekisiweyo yangoku.
2. Faka umfanekiso kwaye ujonge umxholo uwonke.
3. Sondeza iinwele, uboya, izinto ezibhityileyo, izikhewu, kunye nezithunzi zokudibana.
4. Tshintsha phakathi kwemvelaphi ekhanyayo kunye nemnyama.
5. Buyela kubungakanani obujoliswe ekusetyenzisweni.
6. Thumela ngaphandle kwaye uhlole eyona PNG kwindawo yayo xa kunokwenzeka.

Ukuba umfanekiso uqalise ukucutshungulwa kwesisombululo esicuthiweyo, lumka ngakumbi kwiinkcukacha ezimxinwa. Ulungiso lweManuwali kunye noCima lungayilungisa injongo, kodwa alunako ukuphinda luphinde luveze ulwazi olungabonakaliyo kumthombo.

Ngenqanaba lemaski elizenzekelayo, bona Ibonwa yintoni imodeli yokusika kwisixhobo. Ukuze uqonde ukuba kutheni uphinda useto lusenokufuna amagalelo alawulwayo kunye neenguqulelo, funda Ukuthunyelwa ngaphandle okuphinda kuveliswe ngoluhlu olufanayo.