Umhleli we-Photoshop uvame ukusetshenziselwa ukukala isithombe.
Okukhethwa kukho kuyathandwa kangangokuthi ngisho nabasebenzisi abangajwayelekile ngokuphelele ukusebenza kohlelo bangabhekana kalula nokuguqula isithombe.
Okubalulekile kwalesi sihloko ukuguqula izithombe kwi-Photoshop CS6, ukunciphisa ukwehla kwekhwalithi okungenani. Noma yikuphi ukuguqulwa kobukhulu bokuqala kuzothinta ikhwalithi, kodwa ungahlala ulandela imithetho elula ukuze ugcine ukucaca kwesithombe bese ugwema "ukufiphaza".
Isibonelo sinikezwe ku-Photoshop CS6, kwezinye izinguqulo ze-CS i-algorithm yezenzo zizofana.
Imenyu yesithombe sesithombe
Isibonelo, sebenzisa lesi sithombe:
Inani eliyinhloko lezithombe ezithathwe ngekhamera yedijithali lalikhulu kunomfanekiso owethulwe lapha. Kodwa kulesi sibonelo, isithombe sicindezelwe ukuze kube lula ukubeka kuso esihlokweni.
Ukunciphisa usayizi kulo mhleli akufanele kubangele noma yikuphi ubunzima. Kunemenyu yalolu khetho ku-Photoshop "Usayizi wesithombe" (Usayizi wesithombe).
Ukuthola lo myalo, chofoza ithebhu yemenyu enkulu. "Isithombe - Usayizi Wesithombe" (Isithombe - Usayizi Wesithombe). Ungasebenzisa futhi ama-hotkeys. I-ALT + CTRL + I
Nasi umfanekiso wesimenyu, uthathwe ngokushesha ngemuva kokuvula isithombe kumhleli. Azikho izinguquko ezengeziwe ezenziwe, izilinganiso zilondoloziwe.
Leli bhokisi lebhokisi linamabhuloki amabili - Isilinganiso (Ubukhulu bePixel) futhi Isayizi lokuphrinta (Usayizi weDokhumenti).
Ibhokisi elingezansi alisithakazelo, ngoba akuyona eyesihloko sesifundo. Bheka phezulu kwebhokisi lengxoxo, ekhombisa usayizi wefayela kuma-pixel. Lesi sici sinesibopho sobukhulu bangempela besithombe. Kulesi simo, amayunithi wesithombe angamaphikseli.
Ukuphakama, Ububanzi nobukhulu
Ake sifinyelele ekutadisheni le menyu ngokuningiliziwe.
Ngakwesokudla kwento "Isilinganiso" (Ubukhulu bePixel) Kubonisa inani elilinganiselwe elivezwe ngezinombolo. Bakhombisa ubukhulu befayela lamanje. Kungabonakala ukuthi isithombe sithatha 60.2 M. Incwadi M imele i-megabyte:
Ukuqonda ubukhulu befayela lesithombe okucutshungulwa kubalulekile uma ufuna ukuliqhathanisa nesithombe sokuqala. Ake sithi sinezizathu zesisindo esiphezulu sesithombe.
Noma kunjalo, lokhu akuthinti usayizi. Ukuze unqume lesi sici, sizosebenzisa izinkomba zokuphakama nokuphakama. Amanani womabili amapharamitha abonakala kuwo amaphikseli.
Ukuphakama (Ukuphakama) isithombe esiyisebenzisayo Amaphikseli angu-3744futhi Ububanzi (Ububanzi) - Amaphikseli angu-5616.
Ukuqedela umsebenzi bese ufaka ifayela lesithombe ekhasini lewebhu, udinga ukunciphisa usayizi walo. Lokhu kwenziwa ngokushintsha idatha yamanani egrafu "Ububanzi" futhi "Ukuphakama".
Faka inani elingenamkhawulo ngobubanzi besithombe, isibonelo Amaphikseli angu-800. Uma singena izinombolo, sizobona ukuthi isici sesibili sesithombe sesishintshile futhi manje Amaphikseli angu-1200. Ukusebenzisa izinguquko, cindezela ukhiye "Kulungile".
Enye indlela yokungenisa ulwazi mayelana nosayizi wesithombe ukusebenzisa iphesenti yesayizi yesithombe sokuqala.
Emenyu efanayo, ngakwesokudla kwenkambu yokufaka "Ububanzi" futhi "Ukuphakama", kunamamenyu wehla-phansi amayunithi wokulinganisa. Ekuqaleni bayama amaphikseli (amaphikseli), okwesibini okukhethwa kukho kuyatholakala inzalo.
Ukushintshela ekubalweni kwamaphesenti, mane ukhethe enye inketho kwimenyu ehlayo.
Faka inombolo oyifunayo ensimini "Inzalo" futhi uqinisekise ngokucindezela "Kulungile". Lolu hlelo lushintsha ubukhulu besithombe ngokuhambisana nenani lephesenti langenisiwe.
Ukuphakama nobubanzi besithombe kungacatshangwa ngokwehlukana - isici esisodwa kumaphesenti, okwesibili ngamaphikseli. Ukuze wenze lokhu, gcina ukhiye SHIFT bese uchofoza esimweni esifunyiwe sezinyunithi zokulinganisa. Bese sibonisa izici ezidingekayo emasimini - amaphesenti namaphikseli, ngokulandelana.
Ukuhlelwa nokuthungwa kwesithombe
Ngokuzenzakalelayo, imenyu ilungisiwe ukuze uma ufaka ububanzi befayela noma ukuphakama, esinye isici sikhethiwe ngokuzenzakalelayo. Lokhu kusho ukuthi ukuguqulwa kwenani lamanani lobubanzi kuzofaka nokuguqulwa kokuphakama.
Lokhu kwenziwa ukuze ugcine ubukhulu bokuqala kwesithombe. Kuyaqondakala ukuthi ezimweni eziningi uzodinga ukuguqulwa okulula kwesithombe ngaphandle kokuphazamiseka.
Ukwehlisa isithombe kuzokwenzeka uma ushintsha ububanzi besithombe, futhi ubude buhlala bufanayo, noma ungashintsha idatha yezinombolo ngokuzenzakalelayo. Lolu hlelo luphakamisa ukuthi ukuphakama nobubanzi buxhomekile futhi buguquke ngokulingana - lokhu kuboniswa yilo logo ye-chain chain ehlangene ngakwesokudla kwewindi nge amaphikseli namaphesenti:
Ubuhlobo obuphakathi kokuphakama nobubanzi kukhutshaziwe kuzintambo "Gcina izilinganiso" (I-Constrain Proportions). Ekuqaleni, ibhokisi lokuhlola lihloliwe, uma udinga ukushintsha izici ngokuzimela, kwanele ukushiya insimu ingenalutho.
Ukulahlekelwa kwekhwalithi uma kukhula
Ukushintsha usayizi wezithombe ku-Photoshop kuwumsebenzi obalulekile. Noma kunjalo, kunama-nuances okubalulekile ukwazi ukuze ungalahlekelwa ikhwalithi yefayela okucutshungulwayo.
Ukuze uchaze ngalokhu iphuzu ngokucacile, ake sisebenzise isibonelo esilula.
Ake sithi ufuna ukushintsha usayizi wesithombe sokuqala - hlehlisa. Ngakho-ke, kufasiteleni le-Image Size pop-up engifaka 50%:
Uma uqinisekisa isenzo ngesikhiye "Kulungile" efasiteleni "Usayizi wesithombe" (Usayizi wesithombe), uhlelo luvala iwindi le-pop-up bese lisebenzisa izilungiselelo ezibuyekeziwe kwifayili. Kulesi simo, kunciphisa isithombe ngesigamu kusukela usayizi wangempela ngobubanzi nokuphakama.
Isithombe, njengoba singabonakala, sesinciphile kakhulu, kodwa ikhwalithi yayo ayizange ihlupheke.
Manje sizoqhubeka nokusebenza ngalesi sithombe, ngalesi sikhathi sizokwandisa usayizi wayo wangempela. Nalapha, vula ibhokisi elifanayo lebhokisi lengxoxo yesithombe. Faka amayunithi wamaphesenti wokulinganisa, futhi nasemasimini eseduze esikushayela ngenombolo 200 - ukubuyisela usayizi wangempela:
Siphinde sibe nesithombe enezici ezifanayo. Noma kunjalo, manje ikhwalithi ayimpofu. Imininingwane eminingi ilahlekile, isithombe sibheka "zamylenny" futhi silahlekelwe kakhulu ngobukhali. Njengoba ukwenyuka kuyaqhubeka, ukulahlekelwa kuyokwanda, ngaso sonke isikhathi ukuhlaziya izinga eliphezulu nokuningi.
Ama-algorithms we-Photoshop ngenkathi e-Scaling
Ukulahlekelwa kwekhwalithi kwenzeka ngesinye isizathu esilula. Uma kunciphisa ubukhulu besithombe besebenzisa inketho "Usayizi wesithombe", I-Photoshop imane iyanciphisa isithombe, isuse amaphikseli angadingekile.
I-algorithm ivumela uhlelo ukuthi luhlolisise futhi lususe amaphikseli esithombeni, ngaphandle kokulahlekelwa kwekhwalithi. Ngakho-ke, ukunciphisa izithombe, njengombuso, ungalahlekelwa ubukhali babo nokuphambene nhlobo.
Enye into ukukhula, lapha sibhekene nobunzima. Uma kwenzeka ukwehla, lolu hlelo aludingi ukusungula noma yini - vele ususe okungaphezu kwalokho. Kodwa uma kudingekile ukwanda, kubalulekile ukuthola ukuthi i-Photoshop izoyithathaphi amaphikseli adingekayo ukuze ivolumu yesithombe? Lolu hlelo luphoqeleka ukuba luzenzele isinqumo mayelana nokufakwa kwamaphikseli amasha, okwenza kube ngumfanekiso wokugcina okhulisiwe.
Ubunzima ukuthi lapho ukwandisa isithombe, uhlelo luzodinga ukudala amaphikseli amasha angakaze abe khona kule dokhumenti. Futhi, akukho ulwazi lokuthi isithombe sokugcina kufanele sibonakale kanjani, ngakho-ke i-Photoshop iqondiswa kalula yizinhlelo zayo ezijwayelekile lapho enezela amaphikseli amasha esithombeni, futhi akukho okunye okunye.
Ngaphandle kokungabaza, abathuthukisi baye basebenza ukuze balethe le algorithm eduze nendawo efanele. Noma kunjalo, ngokucabangela izithombe ezihlukahlukene, indlela yokwandisa isithombe yisisombululo sesilinganiso esivumela ukunyuka okuncane esithombeni ngaphandle kokulahlekelwa kwekhwalithi. Ezimweni eziningi, le ndlela izonikeza ukulahlekelwa okukhulu ngokubukhali nokuphambene.
Khumbula - ushintsha izithombe kwi-Photoshop, cishe ngaphandle kokukhathazeka mayelana nokulahleka. Noma kunjalo, kufanele ugweme ukwandisa ubukhulu bezithombe, uma sikhuluma ngokulondoloza ikhwalithi yesithombe esiyinhloko.
