Sinthani AV1 ku Image

Sinthani Yanu AV1 ku Image mafayilo mosavuta

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Kukweza

Momwe mungasinthire AV1 ku Image

Gawo 1: Kwezani yanu AV1 mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa Image mafayilo

AV1 ku Image Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame amodzi kuchokera ku AV1 ngati Image zithunzi?

Kutsitsa fayilo ya AV1 ndi wosinthira amatulutsa chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame panthawi yofunikira, kapena chiwonetsero chimodzi pasecond.Katundu uliwonse wosankhidwa umasunthidwa kuchokera ku AV1 video stream, amasinthidwa kukhala fayilo ya Image yosiyana, ndipo imaphatikizidwa ngati ZIP yotsitsa. AV1 ndi royalty-free video codec Alliance for Open Media anatulutsa mu 2018 monga wotsatira wa VP9. Image pano ndi zofuna zazikulu: wosinthira amasankha raster format zomvetsa chisoni kwa cholinga cha m'malo mwa kuletsa mmodzi pa inu.

Kodi ma subtitle adzawonekera pa Image ma frame omwe ndimatulutsa?

Sikuti ngati ndi mndandanda wa subtitle wachikhalidwe. A AV1 amasunga ma subtitle monga ma stream awo okha ndipo wosewera amawapanga pazithunzi nthawi yosewera, kotero decoded frame yomwe wosintha amalemba ngati Image ili ndi pixels oyera pansi. Ma subtitle omwe adasungunuka mu kanemayo asanakhale AV1 ndi nkhani ina - pomwepo ndi gawo la chithunzicho ndipo chilichonse chopangidwa ndi frame chimasunga iwo.

Kodi ndingatenge imodzi mwa Image kuchokera ku gawo lililonse la AV1?

Si monga batani limodzi, koma AV1 imapangitsa kuti zikhale zosavuta: masamba omarkidwa amasungidwa m'mabokosi monga nthawi yotchedwa, choncho werengani mndandanda wa masamba kuchokera pa fayilo ndi kuika nthawiyo m'malo a nthawi yolemba. Mumapeza Image imodzi patsamba, m'njira, yomwe ndi njira yodziwika bwino yopanga mathumbnail kwa kujambula kotalika. Mafuta opanda masamba omarkidwa akukupangitsani kusankha mafilimu ndi maso. AV1 amabweretsa pafupifupi 30% yabwino kusamvana kuposa H.264 pa ubwino wofanana ndi kunyamula palibe ndalama latsopano, chifukwa chake YouTube ndi Netflix kunyamula izo.

Kodi Image imathandizira kuwala?

Format imagwira ntchito, koma chiyambicho sichimakhala ndi alpha kuti ipereke - ma frame a video ndi masamba opangidwa ndi mawonekedwe owoneka bwino, kotero kuti ma pixel onse amafika molimba. Chingwe cha alpha chimakhala chothandiza pambuyo pake: kumatanthauza kuti mutha kuchotsa chinthu kuchokera ku Image pambuyo pake popanda kusintha mtundu. Kusankha chitukuko mwamsanga kumatanthauza inu mupeza fayilo yomwe imatsegula kulikonse popanda kuganizira za codecs koyamba.

Kodi ndi chiyani chofunikira pa Image mafayilo?

Kukula kwakukulu kuposa momwe mungayembekezere, chifukwa Image imasunga ma pixel onse moyenera kuposa kuyerekezera. 1080p imakhalabe pafupi ndi 2-5 MB ndipo 4K imakhalabe pafupi ndi 6-15 MB, kotero kutulutsa kwanthawi yayitali kumawonjezera mwachangu. Izi ndi malonda abwino pamene zithunzi zimatha kutulutsa kuwongolera, ndipo zoyipa pamene zikuyenda mozungulira patsamba la webusaiti. Mafuta a photovoltaic amagwiritsa ntchito mphamvu ya dzuwa kuti atenge kutentha kwa dzuwa, ndipo mafuta a photovoltaic amagwiritsa ntchito mphamvu ya dzuwa kuti atenge kutentha kwa dzuwa.

Kodi ndi yankho liti lomwe limatuluka Image zithunzi zosadziwika?

Kuwala kofanana ndi choyamba AV1: 1080p AV1 kumabweretsa 1920x1080 Image ma frame, 4K AV1 kumabweretsa 3840x2160 Image ma frame. Wosinthayo sasintha kapena kuchepetsa - ma pixels amachokera pa frame yosinthidwa. Musanagwiritse ntchito /resize-image/ ngati mukufuna zithunzi zochepa.

Kodi ndingagwiritse ntchito chilichonse cha AV1 ngati Image?

Ndino, koma ganizirani kuchuluka kwa fayilo - 30 fps 1-mphindi AV1 imapanga 1,800 Image mafremu. Timawapaka m'chigawo chimodzi cha ZIP mwamsanga. Kwa mavidiyo ochepa, yesani "1 pa mphindi" (60 mafremu pa mphindi) kapena kusankha nthawi yoyenera. Ora la AV1 pa mafremu onse lidzapanga ~100,000 Image zithunzi.

Kodi Image ma frame adzasunga AV1 kujambula kwa mtundu?

Ndikoyenera - mtundu umasinthidwa ndi mapangidwe omwewo omwe amapezeka patsamba la AV1 (BT.709 kwa HD, BT.2020 kwa 4K HDR). Mafuta a HDR amasinthidwa ku SDR pamene akugwiritsidwa ntchito ku Image omwe sangathe kusungira ma pixel a HDR mwanjira yachibadwa (JPG, PNG-8).

Kodi ndi chiyani chosapanga dzimbiri chosapanga dzimbiri Image pa diski?

Kutengera pa resolution ndi Image codec kusankhidwa: 1080p PNG frame ndi 2-5 MB yopanda kusowa, 1080p JPG pa 85 quality ndi 200-500 KB. Kuwonjezeka kwa mitengo ya frame kuti muchepetse ZIP - pamapeto pake, kutulutsa kwa PNG kwa 10-1080p AV1 kwa 10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-1

Kodi Image yosakira imasunga metadata ya EXIF ya kamera?

AV1 chonyamula sichimangokhala ndi EXIF pa frame momwe kamera ikugwirira ntchito, kotero mafayilo a Image amatuluka ndi ma blocks EXIF opanda pake. Wosintha amagwiritsa ntchito `creation_time` field yomwe imasonyeza nthawi yoyambira ya frame, kuti muthe kubwezeretsa bundle m'njira yoyenera kapena kugwirizana ndi masamba a subtitle / chapter.

Kodi nthawi yayitali bwanji kuti mutenge chiwonetsero cha AV1 mpaka Image?

Kusintha kwa frame ndi kosavuta - nthawi zambiri 20-30% ya nthawi yochokera. 5-mphindi AV1 -> Image bundle imatha m'miphindi 1 popanda kutengera kuti ndi mapazi angati omwe mumasankha, chifukwa chingwe ndi Image encoder kulemba mafayilo ambiri ochepa mofanana, osati AV1 demuxer.

Kodi ndingagwiritse ntchito ma frame panthawi yoyenera m'mavidiyo a AV1?

Ndiyo — njira yowonjezera ya timestamp imavomereza mndandanda wogawidwa ndi koma (mwachitsanzo `00:01:23, 00:05:00, 00:10:42.5`) ndipo imapanga fayilo imodzi Image pa timestamp. Ndikothandiza kwa thumbnails ya chapter, zithunzi zokhudzana ndi scene, kapena kulenga bokosi la mauthenga kuti lifufutidwe.

AV1

AV1 ndi mawonekedwe otseguka, opanda malipiro a kanema opangidwa kuti aziyenda bwino pa intaneti. Amapereka mphamvu yopondereza kwambiri popanda kusokoneza mawonekedwe.

Image

Mafayilo azithunzi, monga JPG, PNG, ndi GIF, amasunga zambiri zowoneka. Mafayilo awa akhoza kukhala ndi zithunzi, zithunzi, kapena zithunzi. Zithunzi zimagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo kapangidwe ka mawebusayiti, zida zamagetsi, ndi zojambula zamakalata, kuti apereke zomwe zili ndi zithunzi.