Tahuri JFIF Tuhinga o mua JPEG

Tahurihia Tō JFIF Tuhinga o mua JPEG kōnae ngawari

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Tukuatu ana

Me pēhea te huri JFIF Tuhinga o mua JPEG

Hipanga 1: Tukuatu tō JFIF ngā kōnae mā te whakamahi i te pātene i runga ake nei, mā te tōia me te whakataka rānei.

Hipanga 2: Pāwhiritia te pātene 'Tahuri' hei tīmata i te tahuritanga.

Hipanga 3: Tikiake i tō mea kua tahurihia JPEG kōnae

JFIF Tuhinga o mua JPEG Ngā Pātai Auau mō te Tahuritanga

He pēhea te tahuri i a JFIF ki JPEG me te kore e ngaro te āhuatanga whakaahua?

Whakataki i tōna JFIF me tātau kaiwhakarere e hoatu ana i te whakawhanaketanga o te āhua o te āhua mo te huaputa JPEG. Mō ngā ūnga kore ngaro (PNG, TIFF, BMP) ka tiakina ngā pīti i ia wā ki te iti; mō ngā ūnga ngaro (JPG, WebP) ka taea te whakarerekē i te take ā-waiho (whakamatau 90) i mua o te tāutunga. Ko te raraunga whakaahua he JPEG noa iho; E tautuhi ana te JFIF anake i te kiato me ngā āpure tātuhi i te taha, nō reira ko te.jfif me te.jpg te pikitia ōrite. He ōrite te rerenga ira ki te.jpg: te whakawhāititanga whakangaromanga i runga i te DCT, i te nuinga o te wā me te 4:2:0 chromatic subsampling, i whakawhāititia ki roto i te JFIF, Exif rānei.

E pupuri ana te JPEG i te raraunga EXIF mai i tōku JFIF?

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 pupuri te tahuritanga o te tahuritanga JFIF ki JPEG?

Ka ora te mārama ina PNG, WebP, TIFF, GIF, SVG rānei te JPEG. Ka whakarerekē te tahuri ki JPG i te kanikani ā-autōhiko ki tētahi papamuri mā — mēnā e hiahiatia ana e koe te mārama, ka kōwhiria he ūnga mārama-mārama i te JPEG. He ōrite te paerewa o JPEG ki te JPG — ko te whakaroatanga-whā-whā te taketake, ā, ko te tohutoro-toru-whā anake nā te whakawhāititanga o te ingoa pūranga DOS 8.3.

Ka ora te āhua o tōku tātai tae (sRGB / Adobe RGB / CMYK) mai i te JFIF ki te JPEG?

Ka whakamātauria ngā tātai tae ICC whakatinana mai i te pūtake JFIF, ā, ka hono anō ki te huaputa JPEG i reira ka tautokona e te hanga (JPG, PNG, TIFF, WebP). Ko ngā hanga kāore i te tautoko i te tātai e hoki ana ki te sRGB me tētahi hipanga whakamātautau.

He aha e puta ana ki te metadata EXIF ina tahuri JFIF ki JPEG?

E pupuritia ana te EXIF o te kāmera (ISO, shutter, lens, GPS) mā te pūmau i te wā o JFIF -> JPEG ina tautokona e ngā āhua rua ngā metadata. Ka whakamahia te whakarerekē ā-whakaaro hei whakawātea i ngā metadata i mua i te whakataki mēnā e hiahia ana kia tiritiri i ngā whakaahua me te kore tauwāhi, pūrere-kitenga rānei.

Ka taea e au te tahuri-whakahaere i ngā rau o ngā pūranga JFIF ki JPEG i tētahi wā?

He — ka tangohia he maha ngā pūranga JFIF ki te rohe tāpiritanga, ā, ka whakatū i te raupapa. Ka whakaaetia e te taumata wātea 100 MB ia pūranga; Kāore he kōpaka-whakahaere, ā, ka haere tonu ngā kaimahi whakawhāiti ake, nō reira ko te 200-pihi te whakamutu i raro i ngā minu e rua.

He pēhea te ōrite o JFIF ki JPEG ki Photoshop / GIMP mō te mahi ōrite?

Mō te tahuri ā-whakahaere, ka whakarewaina e tātau te pūtautau pūrākau pū

He aha te rongoā me ngā ahu o te JPEG?

Ko te whanonga pūmau ko te 1:1 — he ōrite ngā ahu o ngā pikitia o tōtou huaputa JPEG ki te pūtake JFIF. Mēnā e hiahiatia ana e koe te whakarea hei wāhanga o te tahuritanga, ka whakamahia /resize-image/ i muri, ka whakapāpāho rānei i ngā mahi me te utauta /image-pipeline/.

He iti rawa te JPEG i te faila me te kore ngā ahanoa e kitea ana?

Mō JPG / WebP, ko te āhuatanga 75-85 e hua ana i tētahi JPEG 60-80% iti iho i te JFIF me te kore rerekētanga mārama i te tawhiti tirohia noa iho. Mō te JPEG kore ngaro (PNG, TIFF), e tūmanako ana ki ngā pūtea iti iho — i te nuinga o te wā 5-30% mā te whakawhāititanga pai ake / LZW i te pūtake. Ko te JPEG te whakaroatanga e manakohia ana e te nuinga o ngā kāmera, ngā karaehe me ngā pūmanawa taketake Unix, ā, e mōhiotia ana i te ao whānui.

He tūmataiti ahau JFIF i te wā o te tahuritanga?

He — e whakaata ana ngā pūranga JFIF i whakarewaina i roto i ngā kaimahi motuhake, ā, ka tangohia i roto i ngā minu. Kāore anō tātau kia pānui, ki te penapena, ki te tiritiri rānei i te raraunga pūwhiti. Kua tuhituhitia te matapihi tūturu i te /privacy/.

He mahi te JFIF ki te JPEG whakarerekē mō ngā whakaahua nui rawa (50MP+)?

He mea tika mō te wāteatanga tae atu ki te 100 MB. Ka whakahaeretia e te utu ngā tāuru nui ake (300 MB+) me ngā hōhonutanga pūtauira-pōtuhi (16-bit PNG, 32-bit float TIFF, HEIF 10-bit). Ka rere te pūtauira i ngā rārangi pūtauira kia tauinetia ai te pūmahara me te tatau rārangi, ehara i te tatau pūtauira katoa.

He aha te nui ake, iti ake rānei o te uara o te JPEG i te uara?

Ko te JFIF pūranga me te whakawhāiti kaha (JPG tino ngaro) ka tipu ina whakawaengatia anō ki tētahi JPEG kore ngaro (PNG, TIFF), ā, he nui te whakawhāiti i te bitrate-high-lossless JFIF ina haere ki JPG/WebP. E whakawhirinaki ana te ōwehenga ki ngā ihirangi whakaahua (he rerekē te whakawhāiti i ngā whakaahua mai i te toi raina, i ngā whakaahua rānei). 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. E tiritiri ana a JPEG i ia whakawhāititanga JPG — kāore he huamanu, he ngaronga whakatupuranga i te whakaoranga — me te āhua o te pūmanawa tāpiri e rerekē ana te āhua o ngā whakaroatanga e rua.