Kumvetsa Metadata: Zomwe Zibisika Zamafayi Mafoto
Funso: Kodi Metadata ndi chiyani?
Za EXIF, IPTC ndi XMP Metadata Zagwiritsidwa ntchito ku Graphics Software
Yankho: Metadata ndilo mawu ofotokozera omwe ali mkati mwa fano kapena mtundu wina wa fayilo. Metadata ikufunika kwambiri m'zaka zajambula zajambulajambula kumene ogwiritsa ntchito akuyang'ana njira yosunga zinthu ndi zithunzi zawo zomwe ziri zotheka ndikukhala ndi fayilo, zonse pakali pano komanso m'tsogolo.
Mtundu umodzi wa metadata ndizowonjezera zambiri zomwe pafupifupi makamera onse a digito amasunga ndi zithunzi zanu. Maseti omwe adagwidwa ndi kamera yanu amatchedwa deta ya EXIF, yomwe imayimira Exchangeable Image File Format. Mapulogalamu ambiri a digito angagwiritse ntchito mauthenga EXIF kwa wosuta, koma nthawi zambiri samasinthidwa.
- Zonse Zokhudzana ndi EXIF Information mu Digital Photo Files
Komabe, pali mitundu yina ya metadata yomwe imalola olemba kuwonjezera zidziwitso zawo zofotokozera mkati mwa chithunzi cha digito kapena fano lajambula. Masewu awa angaphatikizepo maonekedwe a chithunzi, chidziwitso cha chigamulo, mawu, zilembo, mawu achinsinsi, tsiku la kulenga ndi malo, chidziwitso cha chitsimikizo, kapena malangizo apadera. Maofesi awiri omwe amagwiritsidwa ntchito kwambiri ndi mafayili a zithunzi ndi IPTC ndi XMP.
- IPTC ndi yomwe inayambira m'ma 1970 ndi International Press Telecommunications Council. Poyambirira, idakhazikitsidwa ngati chikhalidwe cha kusinthana mfundo pakati pa mabungwe a mabungwe ndi kusintha kwa nthawi. Pakati pa 1994, mawonekedwe a "Files Info" a Adobe Photoshop anathandiza ogwiritsa ntchito kukhazikitsa ndi kusintha mapepala a IPTC m'mafayilo ajambula.
- XMP ndizowonjezera zatsopano za XML zowonjezeredwa ndi Adobe m'chaka cha 2001. Adobe amagwira ntchito ndi IPTC pophatikizapo "akapitawo a IPTC" m'ndandanda watsopano wa XMP ndipo mu 2005 "adatulutsidwa" IPTC Core Schema ya XMP " . XMP ndi malo otseguka, omvera a anthu onse, zomwe zimapangitsa kuti omasulirawo azikhala ndi zolemba zomwe zimagwiritsidwa ntchito ndi anthu ena. Ma XMP metadata akhoza kuwonjezeredwa ku mitundu yambiri ya mafayilo , koma chifukwa cha zithunzi zojambula, nthawi zambiri amasungidwa m'mafayilo a JPEG ndi TIFF .
Mapulogalamu ambiri a lero ojambula zithunzi ndi ojambula ali ndi mphamvu zowonjezera ndi kusinthira metadata m'mafayilo anu a fano, ndipo palinso zothandiza kwambiri zogwirira ntchito ndi mitundu yonse ya metadata kuphatikizapo EXIF, IPTC, ndi XMP. Mapulogalamu ena akale sagwirizana ndi metadata, ndipo mumayika kutaya uthengawu ngati mutasintha ndi kusunga mafayilo anu okhala ndi metadata yomwe ili mkati mwa pulogalamu yomwe sichichirikiza.
Zisanayambe miyezo ya metadata, dongosolo lililonse la kasamalidwe ka mafano ali ndi njira zake zoyenera kusungiramo zithunzithunzi, zomwe zikutanthauza kuti chidziwitsocho sichinapezeke kunja kwa pulogalamuyo - ngati mutumiza chithunzi kwa wina, nkhaniyo siinayende nayo . Metadata imalola kuti chidziwitso ichi chichotsedwe ndi fayilo, mwa njira yomwe ingamvetseke ndi mapulogalamu ena, hardware, ndi ogwiritsa ntchito mapeto. Ikhoza ngakhale kusamutsidwa pakati pa mafayilo a mafayilo.
Mantha a Kugawana ndi Ma Metadata
Posachedwapa, pakukwera kwa kujambula zithunzi pa malo ochezera a pa Intaneti monga Facebook, pakhala mantha ndi kukhudzidwa ndi mauthenga aumwini monga deta ya malo yomwe imakhala muzithunzi za zithunzi zomwe zagawidwa pa intaneti. Zowopsya izi sizingakhale zopanda maziko, komabe, chifukwa malo onse akuluakulu ochezera a pa Intaneti amachokera kumatawu ambiri kuphatikizapo maulendo a malo kapena magulu a GPS.
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