Tahuri JFIF Tuhinga o mua JPG

E whakawhirinaki ana, ā, i te wāhi e noho ai te ūnga ki te whakatakoto i a ia - te tauira kāmera, ngā whakaritenga whakakite, te tītara me ngā taururuku GPS katoa e whakawhiti ana. Ko GPS te āpure e whakaaro ana: mēnā ka whakaputaina te whakaahua, ka whakamahia te kōwhiringa metadata-strip kia kore ai e whakapāpāho i te wāhi i hoatu ai te whakaahua. Ko te JFIF te Rerekētanga Reke JPEG File - te whakaahuatanga o te tohuāhua e hanga ana i tētahi aho-kati JPEG mārō ki roto i tētahi pūranga whakarerekē.

Ka ora te mārama ina PNG, WebP, TIFF, GIF, SVG rānei te JPG. Ka whakarerekē te tahuri ki JPG i te kanikani ā-autōhiko ki tētahi papamuri mā. Mēnā e hiahiatia ana e koe te mārama i te hua, ka ūngatia he mārama-mārama JPG i te wāhi o JPG=JPG. Ko JPG te paerewa JPEG mai i te tau kotahi mano e 1992, i whakawhiwhia ki raro i ngā whakaroatanga.jpg,.jpeg, me.jfif, ā, i muri i ngā tekau tau e toru, ko te āhua tonu o te nuinga o ngā kāmera me te nuinga o ngā whatunga e whakamahia ana mō ngā whakaahua.

Embedded ICC color profiles are read from JFIF and re-attached to the JPG output where the format supports it (JPG, PNG, TIFF, WebP). Formats without profile support fall back to sRGB, which keeps colors consistent across most modern displays.

E pupuritia ana te EXIF o te kāmera (ISO, shutter, lente, GPS coordinates) mā te pūmau i te wā JFIF → JPG ina tautokona e ngā āhuahira e rua te metadata. Ka whakamahia te kōwhiringa whaiaro hei whakakore i te metadata i mua i te whakataki mēnā e hiahiatia ana kia tiritiri ngā whakaahua me te kore tauwāhi.

He — ka tangohia e tātau ētahi JFIF ngā pūranga ki te rohe tāpiri, ā, ka whakatūtautau i a rātou i te taha kotahi. Ka whiwhi ngā kaiwhakamaori wātea ki te 100 MB ia pūranga; Kāore he kōpaka i ia pūranga, ā, ka haere tonu ngā kaimahi ā-tahi, nā reira ka oti te 200-pitanga i raro i te rua minu.

Mō te tahuritanga ā-tūturu o te āhua, ka whakarewaina e tātau te pūtautau ōrite libpng / libjpeg-turbo / libwebp / ImageMagick e whakamahia ana e te kaiwhakawhanake papamuri, me te ōritetanga o te huaputa. Ko te rerekētanga ko te whakahaere rōpū whakatata - ka whakatuwheratia e ngā taupānga papamuri tētahi pūranga i tētahi wā; ka whakaaetia e tātau tētahi rōpū.

Ko te pūmau ko te 1:1 — e pupuri ana tōtou JPG i ngā ahu pikitia o te pūtake JFIF. Mēnā e hiahiatia ana e koe kia whakarea hei wāhanga o te tahuritanga, ka whakamahia /resize-image/ i muri i te tahuritanga, ka whakapāpā rānei ki te /image-resize/.

Mō JPG / WebP, ko te āhuatanga 75-85 e whiwhi ana i te JPG 60-80% iti iho i te JFIF me te kore rerekētanga mārama i te tawhiti tirohia noa iho. Mō te kore ngaro JPG (PNG, TIFF), e tūmanako ana ki ngā pūtea iti iho — i te nuinga o te wā 5-30% mā te whakawhāititanga pai ake / LZW. E whakawhāiti ana te JPG i ngā whakaahua māori, ā, ka taea te whakamātau i ia pūrere, te kaiwhaiwāhi me te tātari i te tīariari.

He — ka whakarewaina ngā pūranga JFIF i te mahi takitahi, ā, ka tangohia i roto i ngā minu. Kāore anō tātau ki te whakaako, ki te rokiroki roa, ki te tiritiri rānei i te raraunga pikitia. Ko te matapihi tiaki katoa e tuhituhi ana i /privacy/.

He mō te wāteatanga tae noa ki te 100 MB. Ka whakahaeretia e te utu ngā tāuru nui ake (300 MB+) me ngā hōhonu-pōtuhi-pōtuhi (16-bit PNG, 32-bit float TIFF). Ka rere te pūtautau i ngā rārangi kia tauinetia ai te whakamahinga pūmahara me te tau o te rārangi, ehara i te tau o ngā pikitia katoa.

Ko tētahi JFIF me te whakawhāititanga kaha o nāianei (JPG ngaro) ka nui haere i te wā ka whakawaengatia anō ki te kore ngaro JPG (PNG, TIFF). Ko tētahi kore ngaro JFIF ka whakaiti kētia i te wā e haere ana ki JPG / WebP. E whakawhirinaki ana te ōwehenga ki ngā ihirangi whakaahua — he rerekē te whakawhāititanga o ngā whakaahua i te toi raina. Ko te whakaroanga.jfif e whakawātea ana i ngā Windows me ngā taupānga whatunga maha ki te whakakāhore i te pūkete, ko te take anake e whakarerekē ana tētahi tangata. Kāore he mārama a JPG, ka whakapeka anō i ia wā ka tiakina, ā, ka whakaputaina i te ātetetanga mārama i runga i te tae mārama me te kupu mārama.