Yuav ua li cas yog GIFCA? GIF-daim duab "Vkontakte" xwb thiab tsis yog

Nyob rau lub xyoo dhau los no, animated dluab tau ua ib feem ntawm kev networking thiab kev lom zem kev pab. Nyob rau hauv no kev twb kev txuas, cov neeg siv "Vkontakte" thiab lwm yam kev tawm yog xav nyob rau hauv cov nqe lus nug ntawm yog dab tsi SIFCO.

Lub tswvyim ntawm cov hom

GIF yuav deciphered li "hom ntawv rau cov hloov duab dluab." Nws yog tsim los ntawm CompuServe nyob rau hauv 1987 rau xa bitmaps tshaj lub network.

Duab nrog rau cov extension .gif yuav khaws cia tsis compromising qhov zoo thiab suav mus txog 256 feem ntau xim. Nws yog ua tau los pab txhawb thiab ib tug loj tus naj npawb ntawm ntxoov nyob rau hauv lub animation thaum koj muaj ib daim palette rau txhua ncej, thiab pes tsawg ncua ntawm cov dluab. Cov hom ntawv yuav ua hauj lwm nrog rau tus txheej txheem xim palette. Cov duab yog muab los ntawm kab. Vim lub LZW-compressed ntaub ntawv nrog ib tug loj tus naj npawb ntawm homogeneous cheeb tsam yog yooj yim compressed. Cov duab tsis poob txhais.

Advanced GIF-duab

Nws txhais li cas GIFCA rau cov niaj hnub siv, yog hais tias nws twb tsis muaj animation? Qhov no yog tsis zoo li cas nws xav. Yog li ntawd, tsis ntev tom qab cov creation ntawm lub hom lawm: los ntawm 1989 GIF ntaub ntawv yuav ua tau dynamic thiab muaj pob tshab chaw. Animated GIFCA - ib tug duab uas muaj ntau yam ntas, raws li zoo raws li cov lus qhia txog qhov zaus thiab yam uas lawv cov zaub. Feem ntau, cov txheej txheem yog looped, thiab tom qab tus yeeb yam GIFCA restarted.

Ntawm cov palette ntawm cov xim muaj peev xwm yuav tshaj tawm hais tias muaj tseeb. Nyob rau hauv cov ntaub ntawv no, niaj hnub browsers yuav tso saib lub keeb kwm yav dhau los ntawm lub unpainted chaw. Ib nrab transparency, txaus siab nyob rau hauv PNG, rau gifok tsis yam ntxwv: pixel yuav tsum yog sau los yog pob tshab.

Qhov uas siv tau GIF-hom ntawv?

Paub raws nraim li cas GIFCA, peb yuav xaus hais tias qhov no hom ntawm cov duab yog heev pab tau nyob qhov twg cov ntaub ntawv yuav tsum tau muaj ib tug tsawg kawg nkaus loj. Qhov no cheeb tsam yog cov Internet: nyob rau hauv lub pursuit ntawm kev ceev ntawm chaw thau khoom nplooj ntawv, developers tseem tabtom los txo cov kev siv ntawm "hnyav" duab, preferring hnav GIFCA.

Cov GIF hom ntawv yog ib qho nyob rau hauv web tsim. Nws yog haum rau cov kis ntawm cov me me duab, nyob rau hauv Vol. H. Muaj cov ntawv nyeem. Beautifully dai kom zoo nkauj nrog ib tug ntau yam ntawm khawm ntawv - tsis yog hais tias lwm yam, raws li SIFCO. Cuaj kaum, GIF yog tsis haum rau khaws cia duab. Rau lub hom phiaj no yog zoo tagnrho JPEG (JPG): Qhov no hom ntawv yog tsis txwv nyob rau hauv lub xov tooj ntawm displayable xim.

Animated SIFCO feem ntau siv nyob rau hauv lub tsim ntawm cov websites. Nrog rau cov muaj peev xwm mus rau tawm hauv pob tshab pixels, GIF-duab haum txig rau hauv ib tug series ntawm lwm cov duab.

kev yam ntxwv

Yuav ua li cas yog GIFCA? Ua ntej ntawm tag nrho cov, nws yog txo los ntawm "hnyav" duab. Cov hom ntawv ntawm lub LZW-compression, uas tso cai rau koj mus muab duplicate pixels. Yog li ntawd, qhov ntau homogeneous chaw, lub zog yuav raug muab txo duab. Lub algorithm tso cai rau kom txo qhov luaj li cas ntawm yim-ntsis dluab nrog ib tug palette tsis pab zoo: lub compressed cov ntaub ntawv yuav tsum zoo tu qab tso. Raws li rau cov duab, cov kev txwv ntawm 256 xim yuav irreversible.

LZW algorithm nrhiav tib thaj av ua ntaub ntawv thov hu ua cov nqe lus, txib kom lawv npiv zas thiab nyob nyob rau hauv ib lub rooj. Piv txwv li, ib daim duab muaj 70 poob lawm ntawm pixels dawb lias nyob rau hauv cov txiv kab ntxwv, daj thiab liab nyob rau hauv cov xim. Txhua tus yuav tau muab tib tus nqi - piv txwv li, 8. Cov ntaub ntawv yuav tsum muab cia rau hauv daim ntawv ntawm cov 70 lub sij hawm nrog yim nkag. Lub sab lub suab nrov nyob rau hauv lub daim duab, tus compression yog siab zoo.

Lwm feature ntawm cov hom yog lub interlace txoj kev khaws cia cov ntaub ntawv. Cov kab yog muab faib ua tej pawg neeg, hloov lawv cov kev txiav txim tsis pub dhau cov ntaub ntawv. Thaum cov duab yog loaded, nws maj mam emerges. Yog li, thaum GIFCA tsis siab loaded, nws yuav pom, tab sis nyob rau hauv ib tug qis daws teeb meem.

Thawj kaw 1, 5, 9 thiab ntxiv cov kab ntawm ua mib "4" nyob rau hauv qhov kev txiav txim lawv tshwm sim tom khau raj. Thaum 25% yog downloaded, koj yuav saib tau ib qhov muag plooj duab. Ntxiv tshwm 3, 7, 11 thiab ntxiv cov kab, daim duab yuav 2 lub sij hawm dlaim phaj. Ces loaded lwm series (2, 6, 10, ... thiab 4, 8, 12 ...), thiab acquires kawg hauv daim ntawv ntawm daim duab. Qhov no cov ntaubntawv povthawj siv txoj kev me ntsis tsub kom qhov luaj li cas ntawm SIFCO, tab sis ua tau mus saib nws tus ua ntej thaum xaus ntawm lub download yog raws nraim li cas no me ntsis khuam.

Yuav ua li cas yog GIFCA "Nyob rau hauv kov"?

Animated dluab, uploaded los ntawm cov neeg BK - cov no yog cov mus dluab nyob rau hauv lub GIF hom. Rau cov neeg uas twb paub dab tsi GIFCA yuav xav paub yuav ua li cas tso nws nyob rau ib lub social network.

Yuav kom muab tshuaj txhuam ib tug animation los ntawm lwm qhov chaw, koj yuav tsum nias rau ntawm txoj cai nas khawm thiab nrhiav tau cov zaub mov uas tso cai rau koj mus luam tau cov chaw nyob (URL). Ces koj yuav tsum mus rau qhov chaw "Vkontakte" thiab muab tshuaj txhuam qhov chaw nyob ntawm qhov chaw nyob rau hauv uas mus tshwm sim GIFCA (piv txwv li, nyob rau hauv lub teb chaw uas koj sau ib tug ncej hauv cov ntawv nyeem nyob rau hauv lub phab ntsa). Lub system yuav muab tau cov duab, thiab ces tus link muaj peev xwm yuav muab tshem tawm. Xovxwm Sau mus rau luam tawm SIFCO.

SIFCO mus download tau los ntawm koj lub computer, nws yuav tsum tau muab tso rau hauv lub "Cov ntaub ntawv" seem (muab faib yog qhib nyob rau hauv lub chaw). Nyem "ntxiv ib daim ntawv", xaiv qhov kev nkag theem. Yuav kom muab tso SIFCO nyob rau hauv ib cov lus los yog post, koj yuav tsum nias lub khawm "Muab" thiab nrhiav tau cov ntaub ntawv.

Animated dluab, pom los ntawm cov phooj ywg, koj yuav txuag koj tus kheej. Ua li no, koj yuav tsum mus rau deploy daim duab nrog rau cov "+", nias rau ntawm nws, txoj nyem thiab xaiv los ntawm cov ntawv qhia zaub mov rau yam khoom.

Yuav ua li cas yog SIFCO nyob rau hauv VC? Qhov no yog ib txoj kev zoo rau decorate koj profile, qhia tus cwj pwm txawv, ua kom zoo siab rau koj tus kheej thiab cov phooj ywg. Ntxiv animation nyob rau hauv xov xwm los yog nyob rau ntawm cov phab ntsa nrog koj tus kheej lub computer los yog websites: Tam sim no koj paub yuav ua li cas yuav ua rau nws!