Tahuri WebP Tuhinga o mua PNG

Kāore. Ko ngā ahanoa whakawhāiti kua whakawhāititia ki roto i te WebP ko ngā raraunga pikitia noa iho ināianei, ā, ka tiaki i te PNG i rātou kia kore ai i te tango i a rātou. Ko te nuinga o te wā ka nui ake te faila, i ētahi wā he maha ngā wā nui ake. Ka tika tonu te mahi i mua i te whakarerekētanga, nā te mea kāore e whakawātea anō ngā whakarerekētanga i te whakatupuranga tuarua o te ngaronga i runga ake. Ko PNG te kōwhiringa tika mō ngā whakaahua mata, ngā tohu, ngā toi raina me ētahi atu mea me ngā taitapa mārō, mārama rānei — kāore he whakawhāiti, kāore he tae. Kei te WebP tonu te waeine tuarua i waho o te kaiwhaiwāhi — kāore e whakaaetia e ngā rerenga mahi tātai, ngā hanganga Tari tahito me ētahi whare tātari.

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 WebP te āhua whakaahua o Google 2010, i hangaia mai i te kaituhituhi VP8, ā, i whakaritea kia whakakapia i te JPG, PNG me te GIF i te kotahi.

Ko te tāruatanga tuatahi anake e ora ana, nā te mea he āhua tūturu te PNG kāore he wāhi hei rokiroki i te toenga. Mēnā he mea hira te whakatangitanga, ka ūngatia tētahi hanga e whakatangi ana, ka tahuri rānei ki tētahi kāwai ataata, ā, ka pupuri i te nekeneke. He pūāhua whakaahua kino te PNG: ko te whakaahua i tiakina hei PNG, e rima ki te tekau ngā wā e nui ake ana i te whakaahua ōrite, pēnei i te JPG, i te WebP rānei.

Ka ora te mārama ina PNG, WebP, TIFF, GIF, SVG rānei te PNG. 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 PNG. I hangaia a PNG i te tau kotahi mano e 1996 hei whakakapi kore whakawhiwhinga ki te GIF, ā, ka noho hei hanga whakaahua pātata kore ngaro o te Wīwī.

Ka whakamātauria ngā tātai tae ICC whakatinana mai i te pūtake WebP, ā, ka hono anō ki te huaputa PNG 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.

E pupuritia ana te EXIF o te kāmera (ISO, shutter, lens, GPS) mā te pūmau i te wā o WebP -> PNG 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.

He — ka tangohia he maha ngā pūranga WebP 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.

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

Ko te whanonga pūmau ko te 1:1 — he ōrite ngā ahu o ngā pikitia o tōtou huaputa PNG ki te pūtake WebP. 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/.

Mō JPG / WebP, ko te āhuatanga 75-85 e hua ana i tētahi PNG 60-80% iti iho i te WebP me te kore rerekētanga mārama i te tawhiti tirohia noa iho. Mō te PNG 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.

He — e whakaata ana ngā pūranga WebP 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/.