TIFF imasunga chithunzicho moyenera kuposa kuika kwa pixel, kotero kusintha pakati pa mitundu iwiri yopanda kusowa ndi yosinthika ndipo imatha kuchitidwa mobwerezabwereza popanda kuwononga. Zomwe zingathe kuwonongeka ndi zonse zomwe zili m'ma pixels - ma profiles amtundu, kuwala, animation, metadata yophatikizidwa - chifukwa chithandizo cha iwo chimasiyana kwambiri pakati pa ma formats kuposa momwe kusungira ma pixels kumakhalira. TIFF ndi chonyamula zambiri kuposa codec: likhoza kunyamula uncompressed, LZW, ZIP kapena ngakhale JPEG deta, pa mpaka 32 bits pa channel, ndi masamba ambiri mu fayilo imodzi.
N'chifukwa chiyani ma scanners ndi archives amapanga TIFF?
+
Chifukwa chake imasunga chithunzi chothamanga popanda kuzindikira chilichonse kwa inu - palibe kutsitsa kwa lossy komwe kumapangidwa pakupanga, komanso malo a metadata omwe akufuna ntchito ya deta. Izi zimapangitsa kuti ikhale ndi mtundu woyenera panthawi yojambula ndi yovuta yogawa, chifukwa chake ma archives amasunga mtundu woyamba ndikupatsanso zidutswa zosinthidwa. TIFF imagwira ntchito ndi CMYK, 16-bit deepness, embedded ICC profiles ndi multi-page documents, zomwe ndi zomwe zimafunikira zosindikiza ndi zosunga zobwezeretsera.
Kodi mawu a TIFF akhoza kusinthidwa pambuyo posintha?
+
Sichoncho — imatulutsidwa m'zithunzi limodzi ndi zonse zina. Live type ndi khalidwe la fayilo yogwira ntchito, ndipo mtundu uliwonse wotumiza umasunga pixels omaliza, choncho typo yowonekera pambuyo pa kutumiza kunja imatha kusinthidwa pobwerera ku mtundu woyamba ndi kutumiza kunjanso. Izi ndi chifukwa chosunga fayilo yokhala ndi ma layers monga master ndi kuganiziranso kuti iliyonse ya kope yokhala ndi ma flattened ikhoza kugawidwa ngati chiwonetsero chazithunzi chosatha kuposa ngati buku.
Nchifukwa chiyani TIFF yanga ndi yochuluka kwambiri kuposa chithunzi chimodzi chomwe chili ngati JPG?
+
Chifukwa chake, imasunga ma pixel onse, ndipo mu chithunzi cha zithunzi, palibe ma pixel awiri omwe ali ofanana. Kuchepetsa kwa lossless kumagwira ntchito pofuna kuzindikira kubwereza, ndipo mbewu, fumbi ndi ma gradients amapatsa ochepa kwambiri, kotero fayilo imakhala pafupi ndi kukula kwake koyambirira. Pazithunzi, logo kapena line art, kuchepetsa kwachimodzimodzi ndi kochititsa chidwi. Kusinthasintha TIFF ndi kupweteka kwake - awiri TIFFs angagwiritsidwe ntchito mosiyana kuti mapulogalamu kuphunzira wina sachita pa ena - ndi mafayilo ndi akulu.
Kodi TIFF imasunga kumbuyo kowonekera?
+
Yes — format amasunga weniweni alpha channel, kotero cut-out logos, zinthu shots ndi overlays kuteteza khalidwe lawo lowala kuposa kufika pa woyera rectangle. Kusintha kwa mtundu popanda alpha ndi pamene izo zimakhala zoipa: zowonekera zowala nyanja ndi kulowa ndi wolimba mtundu, nthawi zambiri woyera kapena wakuda, ndi palibe njira yopita kumbuyo pang'ono kuteteza mfundoyonso.
Kodi TIFF ndi mtundu woyenera wazithunzi zazithunzi ndi line art?
+
Yes, for exactly the reason it is the wrong one for photos. Interface chrome, text and hard-edged graphics are large areas of identical color with sharp boundaries, which lossless compression handles efficiently and lossy compression smears — the tell is the faint halo that appears around lettering once a screenshot has been through a photographic encoder. Keep screenshots here and convert only when something downstream insists.
Kodi TIFF imatha kusamalira CMYK yosindikiza?
+
Ikhoza, amene ndi chifukwa chake fayilo kuchokera kusindikiza workflows nthawi zina kuwoneka zosadziwika pazenera: zobiriwira ndi zowunikira za ink peresenti kwa kusindikiza kuposa kuwala kwa monitor. ambiri web-facing mtundu ndi RGB okha, kotero kusintha ayenera kutanthauzira, ndi kutanthauzira ndi zosawerengeka - saturated cyan ndi orange shift kwambiri. kwa chilichonse kuyendera kwa wosindikiza, kusamalira oyambirira mbali iliyonse inu kusintha.
Kodi ndi vuto kuti TIFF ili ndi zaka zoposa makumi atatu?
+
Age yekha si vuto - angapo mtundu kuchokera kuti nthawi ndibe bwino, makamaka chifukwa chilichonse chili ndi zaka kuti akwaniritse iwo. Zimene zikukhudza ndi zimene nthawi anaganiza: mavidiyo ang'onoang'ono, mofulumira processors, palibe netiweki, ndi zizindikiro aliyense anafunikabe. Pamene amene anaganizabebe, mtundu ndi bwino. Pamene iwo sachita, kuti ndi chifukwa chosintha. TIFF ndi Tagged Image File Format kuchokera 1986, ndipo ndi mtundu wa skanning, kufalitsa ndi archiving makampani standardized pa.
Kodi kamera ndi malo a metadata amasungidwira pamene ndimasintha TIFF?
