Shintsha usayizi wezithombe ngendlela efanele, ngaphandle kokulahlekelwa ulawulo lwamaphikseli akho
Ukushintsha usayizi wesithombe kuzwakala kulula kuze kube yilapho umphumela ubukeka ucindezelekile, ungacacile, noma mkhulu kabili kunalokho okwakumele. Isishintshi sosayizi esihle sikunikeza izindlela ezimbili ezicacile zokushintsha izilinganiso futhi sigcina izilinganiso ziqondile phakathi. I-Sishintshi Sosayizi Wezithombe sethu senza umsebenzi ngokugcwele kusiphequluli sakho: ukhetha usayizi omusha ngamaphikseli noma njengephesenti, ubuke umphumela ngaphambili, bese ulanda. Ifayela lokuqala alikaze liphume kudivayisi lakho, ngakho akukho okulayishwayo, akukho ulayini olindile, futhi akukho khophi ehlala kuseva yomunye umuntu.
Amaphikseli noma iphesenti: izindlela ezimbili zokusho into efanayo
Ukushintsha usayizi ngamaphikseli kusho ukuthi uthayipha izinombolo ezicacile ozifunayo, njengo-1080 ngo-1080. Sebenzisa lokhu uma inkundla noma isampula idinga usayizi othile futhi ufuna ukufinyelela kuwo ngokunembile. Ukushintsha usayizi ngephesenti kulinganisa ngokuya ngomthombo, ngakho amaphesenti angu-50 anciphisa ububanzi nobude ngokulingana kabili, kanti angu-200 baba khuphindwe kabili. Iphesenti isheshayo uma nje ufuna into encane noma enkulu ngokulingana futhi ungakhathaleli izinombolo ezigcina zicacile. Zombili izindlela zikhiqiza uhlobo lomphumela olufanayo; ngokuvamile yizindlela ezahlukene zokuchaza indawo ehanjelwa. Uma wazi ububanzi bomgomo ngamaphikseli, thayipha amaphikseli. Uma wazi kuphela ukuthi ufuna sibe cishe ingxenye encike ngobukhulu, sebenzisa iphesenti.
Gcina isilinganiso sesimo ukuze kungabi khona okudonswayo
Isilinganiso sesimo (aspect ratio) yisihlobo phakathi kobubanzi nobude. Isithombe esingu-4000 ngo-3000 sinesilinganiso sika-4:3; sicindezele sibe uhlangothi olulinganayo bese ubuso bunwebeka, izindingilizi zibe ama-oval, futhi lonke ifreyimu libukeke lingafanele. Isixazululo wukuvala isilinganiso sesimo ukuze uma ushintsha isilinganiso esisodwa, esinye siyavumelana ngokuzenzakalela. Ngesikhiye sivaliwe, beka ububanzi ku-1200 bese ubude bulandela kunoma yini egcina izilinganiso. Vula kuphela uma ufuna ngamabomu ukushintsha isimo, futhi ulindele ukudonswa uma wenza njalo. Uma udinga isimo esihlukile ngaphandle kokudonsa, sika kuqala bese ushintsha usayizi kamuva, kunokuphoqa isishintshi sosayizi ukuthi sicindezele amaphikseli.
Ukukhulisa naphambene nokuncipha, nokwenzakalayo ekhwalithini
Ukwenza sincike, ukwenza isithombe sibe ncane, kuwuhlangothi oluphephile. Ithuluzi lisusa amaphikseli usayizi omncane ongawadingi, kanti umphumela uhlala ubukhali ngoba yonke imininingwane yokuqala isekhona, ivinjelwe nje. Ukukhulisa, ukwenza isithombe sikhulu kunosayizi womthombo waso, kuwuhlangothi olunobungozi. Akukho mininingwane engeziwe okuncikwa kuyo, ngakho ithuluzi kufanele lisungule amaphikseli amasha ngokulinganisa phakathi kwalawo asekhona. Isithombe siba sikhulu kodwa asibi bukhali, futhi ukusukumela kude ngale kosayizi womthombo kukhiqiza imiphetho ethambile nengacacile. Umgomo osebenzayo: uma ukwazi, qala ngomthombo omkhulu kunomgomo wakho bese uncikisa. Uma kumele ukhulise, gcina isici sisezingeni elilinganiselwe, ngaphansi kwamaphesenti angu-200, futhi wamukele ukuthi ukungacaci okuthile akuguqulwa. Isithombe samaphikseli angu-600 esikhuliswa sibe ngu-2000 wamaphikseli asisoze sabukeka sicacile njengesithathwe ngo-2000 kusukela ekuqaleni.
Izilinganiso ezijwayelekile ezifanele zikhunjulwe
Imisebenzi eminingi yokushintsha usayizi ifika kwizilinganiso ezimbalwa ezijwayelekile. Kumaqoqo enkundla yokuxhumana, izithombe eziyisikwele ngokuvamile ziyi-1080 ngo-1080 wamaphikseli, izindaba ezimile namafreyimu wamavidiyo amafushane angu-1080 ngo-1920, kanti isandulela sesixhumanisi esilele ngokuvamile singu-1200 ngo-630. Izithombe zeprofayela ngokuvamile ziyisikwele futhi zincane esikrinini, ngakho noma yini kusukela ku-400 ngo-400 kuya ku-1080 ngo-1080 kwanele; ukwenyusa kudlulela lapho kuchitha nje amabhayithi. Kumawebhusayithi, izithombe zegunya nezempawu ngokuvamile zihlala phakathi kuka-1600 no-1920 wamaphikseli ngobubanzi, kanti izithombe ezingaphakathi kokuqukethwe azidingi ngaphezu kuka-800 kuya ku-1200 wamaphikseli. Umkhuba omuhle oboleke kubaklami ukukhipha ngosayizi oncoshiwe noma ongaphezulu kancane, bese uvumela inkundla incikise, ngoba izinkundla zincikisa kahle kodwa zikhulise kabi.
Uma sekusayizi ofanele, isithombe kaningi silokhu sisinda kunalokho okudingekayo. Ukushintsha usayizi kushintsha inani lamaphikseli; akulungisi ifomethi noma ukucindezela. Uma inhloso yakho iyifayela elincane hhayi izilinganiso ezincane, dlulisa umphumela ku-sicindezeli sethu sezithombe emuva kwalokho, noma uhlole konke okunye kuma-mathuluzi ezithombe okusika, okuguqula, nokunye.
Konke kuhlala kudivayisi lakho
Ubumfihlo yiyona nzuzo ethulile yokushintsha usayizi kusiphequluli. Izishintshi zosayizi zejwayelekile ze-inthanethi zithumela isithombe sakho kuseva, zisicubungule khona, bese zibuyisela ukulanda, okusho ukuthi umthombo wakho uhlala ekwakhiweni okungenayo ulawulo lwakho. Leli thuluzi lifunda isithombe ngekhanvasi yesiphequluli uqobo, sishintshe usayizi ngokwendawo, futhi sibhale ifayela elisha ngqo kokulandiwe kwakho. Akukho okulayishwayo, akukho okugcinwayo, futhi umsebenzi uyaqhubeka ngisho noma uxhumo lwakho luphelile phakathi nomsebenzi. Lokho kubaluleke ezithombeni zomuntu siqu, izithombe zesikrini zangaphakathi, ukuskena kwamadokhumenti, kanye nanoma yini ongafisi ukuyinikeza umuntu wesithathu ukuze nje uyenze incane.
Imibuzo evame ukubuzwa
Ukushintsha usayizi kuzonciphisa ikhwalithi yesithombe sami?
Ukwenza isithombe sincike sigcina sibukhali ngoba imininingwane ivinjelwe, hhayi isungulwa. Ukwenza sikhulu kunomthombo asengezi mininingwane yangempela futhi singabukeka singacacile, ngakho ukwenza sincike kuhlale kuphephe kunokukhulisa.
Ngiyigwema kanjani ukudonswa noma ukungacaci?
Gcina isilinganiso sesimo sivaliwe ukuze ukushintsha ububanzi kuvumelane ngokuzenzakalela nobude. Vula kuphela uma uhlela ngamabomu ukushintsha isimo, futhi sika kunokudonsa uma udinga isilinganiso esihlukile.
Ngishintshe usayizi ngamaphikseli noma ngephesenti?
Sebenzisa amaphikseli lapho inkundla idinga izilinganiso ezicacile, njengo-1080 ngo-1080. Sebenzisa iphesenti uma ufuna nje isithombe sincike noma sikhule ngokulingana ngaphandle kokukhathalela izinombolo zokugcina ezicacile.
Isithombe sami siyalayishwa ndawana thize?
Cha. Ukushintsha usayizi kwenzeka ngokugcwele kusiphequluli sakho usebenzisa ikhanvasi yendawo. Ifayela lakho lokuqala alikaze liphume kudivayisi lakho futhi akukho okuthunyelwa kuseva.
Isithombe seprofayela kufanele sibe nabani usayizi?
Isithombe esiyisikwele phakathi kuka-400 ngo-400 no-1080 ngo-1080 wamaphikseli sisebenza kucishe zonke izinkundla. Ukudlula lapho kwengeza nje usayizi wefayela ngaphandle kwenzuzo ebonakalayo kubukeko obuncane be-avatar.
Kungani ifayela lami lisalokhu likhulu ngemva kokushintsha usayizi?
Ukushintsha usayizi kushintsha izilinganiso zamaphikseli, hhayi ukucindezela. Ukuze wenze usayizi wefayela uqobo lube ncane, dlulisa isithombe esesishintshiwe kusicindezeli sezithombe emva kwalokho.