WebM → TIFF

Sinthani Yanu WebM ku TIFF mafayilo mosavuta

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Kukweza

Momwe mungasinthire WebM ku TIFF

Gawo 1: Kwezani yanu WebM 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 TIFF mafayilo

WebM ku TIFF Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame kuchokera ku WebM kanema ngati TIFF zithunzi?

Kutsitsa WebM ndi wosintha amasonyeza chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame panthawi yofunikira, kapena chiwonetsero chimodzi pasecond. Chosankha chilichonse chimayikidwa ngati fayilo ya TIFF ndipo zonse zimayikidwa mu archive ya ZIP yotsitsa. WebM ndi chigawo cholimba cha Matroska chomwe Google chidatulutsa mu 2010 pofuna kupatsa HTML5 kanema chidebe chopanda royalty. TIFF ndi Tagged Image File Format kuchokera 1986, ndipo ndi mtundu wa skanning, kufalitsa ndi archiving makampani standardized pa.

Kodi ma subtitle adzawonekera pa TIFF ma frame omwe ndimatulutsa?

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

Kodi TIFF 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 TIFF pambuyo pake popanda kusintha mtundu. TIFF imagwira ntchito ndi CMYK, 16-bit deepness, embedded ICC profiles ndi multi-page documents, zomwe ndi zomwe zimafunikira zosindikiza ndi zosunga zobwezeretsera.

Kodi ndi chiyani chofunikira pa TIFF mafayilo?

Kukula kwakukulu kuposa momwe mungayembekezere, chifukwa TIFF 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. TIFF ndi chonyamula zambiri kuposa codec: likhoza kunyamula uncompressed, LZW, ZIP kapena ngakhale JPEG deta, pa mpaka 32 bits pa channel, ndi masamba ambiri mu fayilo imodzi.

Kodi ndi pa chisankho chiyani chomwe chimatuluka pa TIFF chiwonetsero chosakira?

Kuwala kofanana ndi WebM kanema - 1080p WebM imapanga 1920 × 1080 TIFF ma frame; 4K WebM imapanga 3840 × 2160 TIFF ma frame. Pezani ntchito yosintha kukula pambuyo pochotsa ngati mukufuna zithunzi zochepa kapena zokongoletsera zazing'ono.

Kodi ndingagwiritse ntchito chilichonse cha WebM ngati TIFF?

Ndikofunika, koma onetsetsani kuti muwerenge fayilo - 30fps 1-mphindi WebM imapanga 1,800 TIFF ma frame. Timawapaka m'ma ZIP mosasintha. Kwa ma clip ochepa, kusankha "1 pa mphindi" (ma frame 60) kapena ma timestamps okhudzana ndi nthawi imapatsa zotsatira zoyenera.

Kodi zithunzi zosakira TIFF zidzasunga kujambula kwa WebM?

Ndikoyenera - mtundu umasinthidwa ndi mamatrix omwe chiyambi WebM chimagwiritsa ntchito (BT.709 kwa HD, BT.2020 kwa 4K HDR). Mafuta a HDR amasinthidwa ku SDR pochotsa ku TIFF chifukwa ambiri a TIFF amtundu (PNG, JPG) sangathe kusungira ma pixel a HDR mwanjira yosadziwika.

Kodi ndi kukula kwa fayilo ya TIFF ya frame?

Kutengera pa resolution ndi TIFF codec. 1080p PNG frame ndi 2 mpaka 5 MB; 1080p JPG pa quality-85 ndi 200 mpaka 500 KB; 4K PNG ndi 6 mpaka 15 MB. Pamapeto pake, kuchotsa PNG panthawi iliyonse ya 10-mphindi 1080p WebM kumabweretsa ~ 50 GB pamodzi.

Kodi TIFF yosanduka imasunga metadata ya kamera ya EXIF?

WebM yokhala ndi WebM siyimasunga EXIF pa frame momwe kamera ikugwirira ntchito, choncho mafayilo a TIFF amatuluka ndi EXIF yopanda pake. Timayika `creation_time` yokhala ndi nthawi yoyambira ya frame kuti muthe kubwezeretsa bundle ndi kujambula.

Kodi nthawi yayitali bwanji kuti mutenge ma frame kuchokera ku WebM kupita ku TIFF?

Kutulutsa kwa frame ndi kosavuta - nthawi zambiri 20 mpaka 30% ya nthawi yoyambira pa standard pipeline. 5-mphindi WebM → TIFF bundle imatha m'miphindi pafupifupi popanda malire a frame count, chifukwa bowa ndi TIFF encoder, osati WebM demuxer.

Kodi ndingagwiritse ntchito ma frame pa nthawi yoyenera mu WebM?

Ndiyo — njira yophunzirira imavomereza mndandanda wa ma timestamps ogawidwa ndi koma (mwachitsanzo `00:01:23,00:05:00,00:10:42`) ndipo imapanga fayilo imodzi ya TIFF pa timestamp. Ndikothandiza kwa mathumbnails a bokosi, ma shots a scene reference, kapena mathumbnails a maphunziro ochepa.

Kodi WebM kanema wanga ndi wapadera pamene ndimachotsa ma frame?

Ndikofunika - mtundu wofanana wa privacy monga pazosintha zonse. Video yochokera ndi TIFF yachikhalidwe imatha kuchitidwa m'maola ogwira ntchito osiyana ndi kuchotsa m'maola angapo; palibe kuyankha kwa munthu, palibe kuphunzitsa corpus, palibe kulowa kwachitatu.

WebM

WebM idapangidwira intaneti, imapereka makanema otsatsira opanda ndalama zambiri okhala ndi ma codec a VP8/VP9.

TIFF

Mafayilo a TIFF amathandizira kuzama kwa ma bit ambiri komanso kupsinjika kosataya, komwe ndi koyenera kujambula zithunzi ndi kusindikiza mwaukadaulo.