Akekho impendulo efanele kulo mbuzo
Amaphikseli ngamasentimitha angu-intshi (PPI) wombukiso yilokho okubhekwa ngokuthi yi- pixel mass futhi ngempela ngempela ukuthi ungaphila amaphikseli amaningi uma ubala amaphikseli, okuyi-horizontal noma eqondile, okukhona ku-intshi eyodwa ekuboniseni kwakho.
Kunezizathu eziningana zokuthi kungani ukwazi ukuthi zingaki amaphikseli akhona ku-intshi yesiboniso sakho, kodwa ngokuvamile lokhu kuyasiza kakhulu uma uzama ukucabanga ukuthi isithombe esisekrinini sakho singase sibheke kanjani kwesikrini esihlukile.
Okunye ukucabanga okuvamile ukuthi udinga ukwazi i-PPI yokubonisa noma iphrinta ukuze uqonde ukuthi isithombe esikhulu noma esincane singavela kanjani uma sinyatheliswa, kodwa empeleni awukho kulokhu. Okuningi kulokho ngezansi.
Ayikho Impendulo KwaPixel Nge-inch
Uma wonke ama-pixel ayesayizi ofanayo, ama-pixel angama-intshi angaba yinombolo eyaziwayo njengangaki amamentimitha angu-intshi (2.54) noma zingaki amasentimitha ngezinyawo (12).
Kodwa-ke, amaphikseli ahlukene ngobukhulu obuboniswayo, ngakho impendulo ingama-pixels angama-58.74 ngamasentimitha kuthelevishini engu-75 "4K, isibonelo, namaphikseli angu-440.58 ngamasentimitha ku-5" I-HD Full Screen smartphone.
Ngamanye amazwi, mangaki amaphikseli nge-intshi axhomeke kubukhulu nosombululo kwesikrini okhuluma ngaso, ngakho-ke kuzodingeka senze ezinye izibalo ukuthola inombolo oyilandelayo eyakho.
Indlela Yokubala Ama-Pixel In Inch
Ngaphambi kokuba singene kulokho okubukeka njengezibalo eziphambili (akusiyo, ungakhathazeki), senze umsebenzi onzima kuwe ngenombolo yezibonisi ku- Pixels Per Perch Table ephansi kwekhasi.
Uma uthola i-PPI yakho yokubonisa, qhubeka ku- Indlela Yokusebenzisa I-Pixels Yakho Nge-Inch Inombolo , kodwa uma kungenjalo, sizoyiqonda lapha ngezindlela ezimbalwa zezibalo ezilula.
Okuzodinga kunoma yikuphi ukulinganisa usayizi wokubonisa ohlangothini ngamasentimitha kanye nesinqumo seskrini . Zombili lezi zinombolo zingatholakala ekhasini lobuchwepheshe lobuchwepheshe bokubonisa noma idivayisi yakho.
Bheka Indlela Yokuthola Imininingwane Yokwesekwa Kwamakhasimende uma udinga usizo lokumba lokhu.
Nakhu ukulingana okugcwele kwakho kubantu abakwa-savvy, kodwa yeqa ngakwesokunxele ukuze uthole izinkomba zesinyathelo ngezinyathelo:
ppi = (√ ( w ² + h²)) / d... lapho i- ppi ingamaphikseli ngamasentimitha ngamasentimitha ozama ukuwathola, w isinqumo sokubanzi ngamaphikseli, h isinqumo sokuphakama ngamaphikseli, futhi d ubukhulu bokuda kwesikrini ngamasentimitha.
Uma ulala ngesikhathi sokulandelana kwesahluko sokusebenza esiklasini samatriki, nakhu ukuthi wenza kanjani lokhu ngesibonelo sesibuko esingu-60 "4K (3840x2160):
- Faka isikwele ngamaphikiseli obubanzi: 3840 = = 14,745,600
- Isikwele ngamaphikseli wokuphakama: 2160² = 4,665,600
- Engeza lezo zinombolo ndawonye: 14,745,600 + 4,665,600 = 19,411,200
- Thatha impande yesikwele yale namba: √ (19,411,200) = 4,405.814
- Hlukanisa leyo nombolo ngesilinganiso se-diagonal screen: 4,405,814 / 60 = 73.43
Ngezinyathelo ezinhlanu ezincane, sithole amaphikseli ngamasentimitha kuthelevishini engu-60 "4K ukuthi ibe ngu-73.43 PPI. Okudingeka ukwenze manje kuphinda lezo zinyathelo ezinhlanu ngokubonisa kwakho , usebenzisa isinqumo sakho nesayizi sakho.
Ngakho manje uyazi i-PPI yakho yokubonisa ... kodwa kuhle ngani? Uma ngabe ufuna ukwazi, usuqedile! Kodwa-ke, njengoba sikhuluma ngesingeniso esingenhla, isikhathi esiningi idivaysi noma i-PPI iyisinyathelo sokuqala samanyathelo amabili ukuze uthole okuthile okusebenzayo.
Indlela Yokusebenzisa Amaphikseli Akho Nge-Inch Inombolo
Manje ukuthi uyazi isikrini sakho noma idivayisi ye-PPI, sekuyisikhathi sokuyisebenzisa kahle.
Hlola ukuthi i-Big Image isibheke kanjani kwenye idivayisi
Ungadala noma uhlele isithombe ku-17 "yekhompuyutha yakho ephathekayo ene-HD (129.584 PPI) kodwa wazi ukuthi uzoyikhombisa ekuboniseni okungama-84" 4K UHD (52.45 PPI) ehhovisi ngesonto elizayo.
Ungaqiniseka kanjani ukuthi isithombe sidalwa esikhulu ngokwanele noma sinemininingwane efanele?
Ukuze uphendule lo mbuzo, uzodinga kuqala ukwazi i -PPI yedivayisi noma ukubonisa ukuthi ufuna ukwazi . Sifunde ukwenza lokhu esigabeni sokugcina, noma uthola eyodwa noma zombili izinombolo etafuleni elingezansi.
Uzodinga futhi ukwazi ubukhulu bephikseli engezansi nomzimba wesithombe sakho . Udala noma uhlele ukuthi ngakho kufanele kube lula ngokwanele ukuthola ohlelweni lwakho lwehluzo.
Njengasekuqaleni, nansi ukulingana okuphelele uma ususelwe kakhulu, kodwa imiyalo ingezansi:
hsize = w / ppi vsize = h / ppi... lapho i- hsize ne- vsize yizinkinobho ezilinganiselwe nezilingana zesithombe ezinama-intshi, ngokulandelana, kwesinye isibonakaliso, w ububanzi besithombe ngamaphikseli, h ubude besithombe ngamaphikseli, futhi i- ppi yi-PPI esinye isibonisi.
Nakhu ukuthi wenza kanjani lokhu uma isithombe sakho singama-pixels angu-950x375 ngobukhulu futhi isibonakaliso osihlelayo siyisikrini esingu-84 "4K (38,40x2160)" (52.45 PPI):
- Hlukanisa ububanzi nge-PPI: 950 / 52.45 = 18.11 "
- Hlukanisa ukuphakama nge-PPI: 375 / 52.45 = 7.15 "
Lapha sibonise ukuthi, kungakhathaliseki ukuthi "big" noma "encane" isithombe singase sibonakale sisesesikrinini sakho , ngokulinganisa kwamaphikseli ka-950x375, leso sithombe sizovela sibe ngu-18.11 "ngo-7.15" kulawo 84 "4K TV it ' Izoboniswa ku.
Manje ungasebenzisa lolo lwazi njengoba ubona kufanelekile ... mhlawumbe yilokho okwakungemva kwakho, noma mhlawumbe akukona okwanele ukucabangela ukuthi isikrini esingu-84 "cishe u-73" ngaphesheya no-41 "ubude!
Hlola Ubukhulu Bomfanekiso Ozophrinta Ngesiphetho Esigcwele
Ngenhlanhla, akudingeki ukuthi uhlole idivayisi yakho noma ubonise i-PPI ukuze ubone ukuthi lukhulu kangakanani isithombe osiphrinta kuzoba ephepheni.
Konke okudingayo ukwazi ulwazi oluqukethwe esithombeni ngokwawo - ubukhulu bephikseli ephezulu , ubukhulu bephikseli , kanye ne- PPI yesithombe .
Zonke izingxenye ezintathu zedatha ziyatholakala ezakhiweni zesithombe ongayithola ohlelweni lwakho lokuhlela ihluzo.
Nazi izilinganiso:
hsize = w / ppi vsize = h / ppi... lapho i- hsize ne- vsize kukhona ukulinganisa nobukhulu bomfanekiso emasentimitha, ngokulandelana, njengoba kuzokhicilelwa , w ububanzi besithombe ngamaphikseli, h ubude bezithombe ngamaphikseli, futhi i- ppi yiyona I-PPI yesithombe ngokwayo.
Nakhu ukuthi wenza kanjani lokhu uma isithombe sakho singama-pixel angu-375x148 ngobukhulu futhi sinama-PPI angama-72:
- Hlukanisa ububanzi nge-PPI: 375/72 = 5.21 "
- Hlukanisa ukuphakama nge-PPI: 148/72 = 2.06 "
Uma ucabanga ukuthi awukali isithombe ngesikhathi sokunyathelisa, isithombe sizoshicilelwa ngokomzimba ngobukhulu be-5.21 "ngu-2.06". Yenza izibalo ngesithombe onayo futhi uziphrinta - zisebenza njalo!
Qaphela: Isinqumo se-DPI iphrinta yakho isethwe, kube yi-300, 600, 1200, njll, ayithinti ubungako bokuthi isithombe sinyatheliswa! Le nombolo ifana kakhulu ne-PPI futhi imelela "ikhwalithi" lapho isithombe esithunyelwe kuphrinta sinyatheliswa kodwa asifanele sifakwe njengengxenye yezibalo zakho zesayizi wesithombe.
Amaphikseli Ngetafula Lama-intshi
Njengokwethenjelwe ngenhla, nangu PPI yethu "yokukopela ishidi" okufanele ikugcinele izibalo eziningi eziboniswe ngenhla.
| Usayizi (ngaphakathi) | I-8K UHD (7680x4320) | I-4K UHD (3840x2160) | I-HD egcwele (1920x1080) |
|---|---|---|---|
| 145 | 60.770 | 30.385 | 15.192 |
| 110 | 80.106 | 40.053 | 20.026 |
| 85 | 103.666 | 51.833 | 25.917 |
| 84 | 104.900 | 52.450 | 26.225 |
| 80 | 110.145 | 55.073 | 27.536 |
| 75 | 117.488 | 58.744 | 29.372 |
| 70 | 125.880 | 62.940 | 31.470 |
| 65 | 135.564 | 67.782 | 33.891 |
| 64.5 | 136.614 | 68.307 | 34.154 |
| 60 | 146.860 | 73.430 | 36.715 |
| 58 | 151.925 | 75.962 | 37.981 |
| 56.2 | 156.791 | 78.395 | 39.198 |
| 55 | 160.211 | 80.106 | 40.053 |
| 50 | 176.233 | 88.116 | 44.058 |
| 46 | 191.557 | 95.779 | 47.889 |
| 43 | 204.922 | 102.461 | 51.230 |
| 42 | 209.801 | 104.900 | 52.450 |
| 40 | 220.291 | 110.145 | 55.073 |
| 39 | 225.939 | 112.970 | 56.485 |
| 37 | 238.152 | 119.076 | 59.538 |
| 32 | 275.363 | 137.682 | 68.841 |
| 31.5 | 279.734 | 139.867 | 69.934 |
| 30 | 293.721 | 146.860 | 73.430 |
| 27.8 | 316.965 | 158.483 | 79.241 |
| 27 | 326.357 | 163.178 | 81.589 |
| 24 | 367.151 | 183.576 | 91.788 |
| 23 | 383.114 | 191.557 | 95.779 |
| 21.5 | 409.843 | 204.922 | 102.461 |
| 17.3 | 509.343 | 254.671 | 127.336 |
| 15.4 | 572.184 | 286.092 | 143.046 |
| 13.3 | 662.528 | 331.264 | 165.632 |
| 11.6 | 759.623 | 379.812 | 189.906 |
| 10.6 | 831.286 | 415.643 | 207.821 |
| 9.6 | 917.878 | 458.939 | 229.469 |
| 5 | 1762.326 | 881.163 | 440.581 |
| 4.8 | 1835.756 | 917.878 | 458.939 |
| 4.7 | 1874.815 | 937.407 | 468.704 |
| 4.5 | 1958.140 | 979.070 | 489.535 |
Yiqiniso, akuwona wonke amadivaysi noma abonisa ngaphandle kukhona 8K UHD , 4K UHD , noma Full HD (1080p) . Nansi elinye ithebula elinombalwa wamadivayisi athandwayo anezinqumo ezingezona ezejwayelekile kanye ne-PPI yabo ebalwa:
| Idivayisi | Usayizi (ngaphakathi) | Isixazululo (x / y) | I-PPI |
|---|---|---|---|
| I-Chromebook 11 | 11.6 | 1366x768 | 135.094 |
| I-Chromebook Pixel | 12.9 | 2560x1700 | 238.220 |
| I-Chromebox 30 | 30 | 2560x1600 | 100.629 |
| Indawo yeDell 8 | 8.4 | 1600x2560 | 359.390 |
| I-Dell Venue 11 Pro | 10.8 | 1920x1080 | 203.972 |
| Ifoni Eyisisekelo | 5.71 | 2560x1312 | 503.786 |
| I-Google Pixel | 5 | 1080x1920 | 440.581 |
| I-Google Pixel XL | 5.5 | 1440x2560 | 534.038 |
| I-Google Pixel 2 | 5 | 1920x1080 | 440.581 |
| I-Google Pixel 2 XL | 6 | 2880x1440 | 536.656 |
| I-Google Pixelbook | 12.3 | 2400x1600 | 234.507 |
| I-HTC One M8 / M9 | 5 | 1080x1920 | 440.581 |
| iMac 27 | 27 | 2560x1440 | 108.786 |
| I-iMac 5K | 27 | 5120x2880 | 217.571 |
| I-iPad | 9.7 | 768x1024 | 131.959 |
| I-iPad Mini | 7.9 | 768x1024 | 162.025 |
| I-iPad Mini Retina | 7.9 | 1536x2048 | 324.051 |
| I-iPad Pro | 12.9 | 2732x2048 | 264.682 |
| I-iPad Retina | 9.7 | 1536x2048 | 263.918 |
| iPhone | 3.5 | 320x480 | 164.825 |
| iPhone 4 | 3.5 | 640x960 | 329.650 |
| I-iPhone 5 | 4 | 640x1136 | 325.969 |
| I-iPhone 6 | 4.7 | 750x1334 | 325.612 |
| iPhone 6 Plus | 5.5 | 1080x1920 | 400.529 |
| I-iPhone 7/8 | 4.7 | 1334x750 | 325.612 |
| iPhone 7/8 Plus | 5.5 | 1920x1080 | 400.528 |
| I-iPhone X | 5.8 | 2436x1125 | 462.625 |
| I-LG G2 | 5.2 | 1080x1920 | 423.636 |
| I-LG G3 | 5.5 | 1440x2560 | 534.038 |
| MacBook 12 | 12 | 2304x1440 | 226.416 |
| I-MacBook Air 11 | 11.6 | 1366x768 | 135.094 |
| I-MacBook Air 13 | 13.3 | 1440x900 | 127.678 |
| I-MacBook Pro 13 | 13.3 | 2560x1600 | 226.983 |
| I-MacBook Pro 15 | 15.4 | 2880x1800 | 220.535 |
| I-Nexus 10 | 10.1 | 2560x1600 | 298.898 |
| I-Nexus 6 | 6 | 1440x2560 | 489.535 |
| I-Nexus 6P | 5.7 | 1440x2560 | 515.300 |
| I-Nexus 9 | 8.9 | 2048x1536 | 287.640 |
| I-OnePlus 5T | 6.01 | 1080x2160 | 401.822 |
| I-Samsung Galaxy Note 4 | 5.7 | 1440x2560 | 515.300 |
| I-Samsung Galaxy Note 8 | 6.3 | 2960x1440 | 522.489 |
| Samsung Galaxy S5 | 5.1 | 1080x1920 | 431.943 |
| Samsung Galaxy S6 | 5.1 | 1440x2560 | 575.923 |
| Samsung Galaxy S7 | 5.1 | 2560x1440 | 575.923 |
| Samsung Galaxy S8 | 5.8 | 2960x1440 | 567.532 |
| I-Samsung Galaxy S8 + | 6.2 | 2960x1440 | 530.917 |
| Ithebulethi ye-Sony Xperia Z3 | 8 | 1920x1200 | 283.019 |
| Ithebulethi ye-Sony Xperia Z4 | 10.1 | 2560x1600 | 298.898 |
| Surface | 10.6 | 1366x768 | 147.839 |
| Okuphezulu 2 | 10.6 | 1920x1080 | 207.821 |
| Ingaphezulu 3 | 10.8 | 1920x1080 | 203.973 |
| Incwadi Yobuso | 13.5 | 3000x2000 | 267.078 |
| Surface Pro | 10.6 | 1920x1080 | 207.821 |
| Surface Pro 3 | 12 | 2160x1440 | 216.333 |
| Surface Pro 4 | 12.4 | 2736x1824 | 265.182 |
Ungakhathazeki uma ungatholanga isinqumo noma idivayisi yakho. Khumbula, ungabala ukuthi zingaki amaphikseli asesintshi kudivayisi yakho, kungakhathaliseki ukuthi usayizi noma isinqumo, usebenzisa izibalo esichazwe ngenhla.