Video Compression Txheej Txheem
Video compression yuav ua tau ib qho kev kos duab thiab kev tshawb nrhiav; tiam sis feem ntau ntawm peb tsis xav kom sib sib zog nqus. Siv cov sij hawm nyob rau video compression mus sib hais thiab yuam kev, peb xav tsim cov yeeb yaj duab, thiab nquag nrawm rau kom pom tseeb cov duab thiab cov playback du. Yog koj paub tias koj qhov video yog internet, muaj ntau yam uas koj tuaj yeem ua thaum koj tuaj yeem ua kom zoo dua rau ntawm lub computer screen thiab ua kom yooj yim video ua kom yooj yim.
Ua ntej, nws yuav pab kom nkag siab txog cov ntsiab lus ntawm cov ntaub ntawv video thiab video compression. Video compression software xyuas cov duab pixels hauv txhua thaij duab, thiab compresses lawv los ntawm cov khoom siv pixels zoo sib xws ua ke hauv cov blocks loj. Qhov no piav txog vim li cas tsis zoo nkauj video compression yuav muab koj cov dluab blocky uas tsis qhia zoo.
Xav txog kev yees duab ntawm lub ntuj xiav thiab cov nyom nrog tus aub khiav ntawm qhov screen. Uncompressed, tus yees duab muaj cov ntaub ntawv rau txhua pixel, hauv txhua kablus. Hloov siab, cov yees duab muaj cov lus qhia tsawg dua vim tias pixels zoo ib yam ua ke. Yog li, los ntawm kev pom zoo tias tag nrho cov pixels nyob rau sab saum toj ntawm cov ncej yog xiav, thiab tag nrho cov pixels nyob hauv qab ib nrab yog ntsuab, cov yees duab compressed txo cov ntaub ntawv loj. Qhov pixels hloov pauv tsuas yog cov uas qhia tau tus dev ua suab.
Yog li, tsawg dua qhov kev hloov video rau thav duab, yooj yim video compression tiav niam txiv. Tau kawg, shooting nrog lub qhov muag rau lub inert yuav tsim tau ib co zoo nkauj tho yeeb yaj duab. Tab sis kev sib haum xeeb tuaj yeem raug; cov tswv yim nram no yuav pab koj qhov video zoo dua hauv online, tsis tas ua kom koj muaj tswv yim:
Tau nruj
Thaum twg ua tau, tua koj cov duab rau ntawm ib lub kos . Qhov no, txawm tias muaj cov lus tsa suab hauv qhov chaw, qhov keeb kwm tseem nyob zoo li qub.
Brighten li
Tsawg kawg nkaus txo cov ntsiab lus sib xyaw ua ke, uas txhais tau tias tsawg dua cov ntaub ntawv rau txheej txheem ntawm video compression. Qhov no yuav khiav tsis sib luag rau koj cov kev xav, tab sis nco ntsoov, cov ntsiab lus zoo yuav tsis tshwm rau ntawm tus neeg siv Internet. Tsis tas li ntawd, lub computer cov ntxaij vab tshum yuav ua yeeb yaj duab zoo nkaus li tsaus nti, yog li ntxiv ci ntsa iab tuaj yeem txhim kho duab zoo.
Saib koj tom qab
Tej zaum koj yuav raug ntxias kom teeb meem rau koj lub ntsej muag ntawm ib tsob ntoo maj mam txav hauv qhov muag, tab sis koj yuav xav tau ntau qhov me me kom ntes cov kab ntawm cov nplooj hauv online. Sim nrhiav ib qho chaw tom qab uas tuaj yeem yooj yim nrawm thiab tseem saib zoo.
Mus nruj
Qhov ze ze koj mus rau ib qho kev kawm, cov lus qhia tsawg dua nyob hauv kev tshuaj ntsuam. Nyob ze nrog ib tug neeg hais lus, tsuas yog cov lus tsa suab nkaus xwb uas yog lub ntsej muag. Rub rov qab, koj mam li ntes ntau dua lub cev thiab tom qab zog, uas yuav ua rau video compression nyuab dua.