Tshintsha JPG ukuba GIF

Guqula Eyakho JPG ukuba GIF iifayile ngokulula

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*Iifayile zicinyiwe emva kweeyure ezingama-24

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Iyalayisha

Indlela yokuguqula JPG ukuba GIF

Inyathelo 1: Layisha eyakho JPG iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho GIF iifayile

JPG ukuba GIF Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyiguqula njani i-JPG ibe yi-GIF ngaphandle kokulahlekelwa umgangatho womfanekiso?

Layisha phezulu ifayile yakho JPG kwaye umguquli usebenzise umgangatho owaziyo wefomati efanelekileyo ye GIF. Ukungabikho kolahleko GIF (PNG, TIFF, BMP) yonke ipixel igcinwa; ukungabikho kolahleko GIF (JPG, WebP) ungalungisa umgangatho womsebenzi phambi kokukhuphela. I-JPG ilahlekile: umfanekiso uguqulwa nge-DCT, u-quantized, kunye ne-entropiy-coded, ngeqhosha lomgangatho elilawula ukuba kuphi okuninzi okulahlekileyo. I-GIF ayilahleki kodwa iphele kwi-256-imibala yengqokelela yezixhobo ngesakhelo ngasinye, isebenzisa uxinzelelo lwe-LZW kunye nokukhanya okubini kombala omnye.

Ndingafumana ukubonakala okucacileyo xa umfanekiso u GIF?

Ifomati GIF ixhasa oku, kodwa uguqulelo alukwazi ukulivelisa. A JPG ayinasiqhagamshelanisi se-alpha, ngoko ke yonke i-pixel equka indawo yangasemva ifika icacile ngokupheleleyo. Phumeza /susa indawo yangasemva/ emva koko ukucima isiqalo — ngoko i-alpha isiqhagamshelanisi GIF ibonelela ngento yokugcinwa. Umfanekiso ojikelezayo we GIF udlala ngokucacileyo naphi na - abaxhasi be-imeyili, iiforums, iinkqubo zokuncokola kunye neebrowser zonke ziyibonisa ngaphandle konxibelelwano lwe-codec.

Ingaba ukutshintsha JPG ukuya ku GIF kubuyisela ubunjani obulahlekileyo?

Hayi. Ii-artefacts zokucinezela eziphekwe kwi JPG zii-pixels zedata eziqhelekileyo ngoku, kwaye GIF igcina kakuhle kunokuba isuse. Ifayile ihlala ikhula, ngamanye amaxesha ikhula amaxesha amaninzi. Kubalulekile ukwenza phambi kohlela, kuba utshintsho oluthe kratya aluyi kunyusa udidi lwesibini lolahleko phezulu. I-JPG ayinabukhali, ikhupha ngaphezulu xa igcinwa kwakhona, kwaye ivelisa ukutshixa okubonakalayo kumbala othambileyo nombhalo oqaqambileyo.

Ingaba umbala wam we-CMYK uya kuqhubeka nokuguqulwa kwi GIF?

Iguqulwe kwi sRGB, kuba GIF ayinayo i CMYK indlela. Ukusetyenziswa kwesikrini oku kulungile. Ushicilelo lweshishini akusebenzi - utshintsho lwegama lokutshintsha indlela imibala ethambileyo ephindayo kwiqhosha, ngoko thumela umshicileli okuqala JPG endaweni ye GIF. I-GIF's 256-imibala ye-ceiling ilahla i-gradients kunye nevidiyo ehlala, kwaye ubungakanani befayili yayo yobuchule bunomlinganiselo onzima kune-WebP okanye i-MP4.

Ingaba i GIF igcina i-EXIF data evela kum JPG?

Ngokungagqibekanga ewe, apho naphi na apho injongo ifuna ukubekwa khona - imodeli yekhamera, izicwangciso zokubonisa, iinwele kunye neGPS ikhowudi zihamba zonke. I-GPS yindawo efanele ucinga ngayo: ukuba umfanekiso uzakupapashwa, sebenzisa ukhetho lwe-strip-metadata ukuze ungasazibonisi apho umfanekiso uthathwe khona. I-JPG yi-JPEG eqhelekileyo ukusukela ngo-1992, kwaye emva kweminyaka emithathu ihlala i-format esetyenziswa ziikhamera ezininzi kunye ne-web sites ezininzi zomfanekiso.

Ingaba uguqulelo JPG ukuya GIF lugcina ukubonakala?

Ukubonakala ngaphaya kuqhubeka xa GIF i-PNG, WebP, TIFF, GIF, okanye SVG. Ukutshintsha kwi-JPG kugubungela isiqhagamshelanisi se-alpha phantsi kokungasemva omhlophe. Ukuba ufuna ukubonakala ngaphaya kwiziphumo, cwangcisa ukubonakala ngaphaya okuziyo GIF endaweni ye-GIF=JPG. I-GIF yifomati ye-CompuServe ye-1987, kwaye isizathu esifanayo esiphilayo kukuba ibonisa ubugcisa.

Ingaba iprofayili yam yombala (sRGB / Adobe RGB / CMYK) izakuhlala i JPG ukuya ku GIF?

Iiprofayili zombala we-ICC ezifakwe ngaphakathi zifundwa ukusuka kwi JPG kwaye zidityaniswe kwakhona kwi-GIF apho ifomati ixhasa khona (JPG, PNG, TIFF, WebP). Iifomati ezingaxhaswanga zibuyela kwi-sRGB, egcina imibala ihambelana nakwimboniselo eninzi yexesha elidlulileyo.

Yintoni malunga ne-EXIF metadata xa uguqula JPG ukuya GIF?

I-EXIF yekhamera (ISO, i-shutter, i-lens, i-GPS coords) igcinwa ngokumiselweyo ngexesha JPG → GIF xa zombini iifayili zixhasa i-metadata. Sebenzisa ukhetho lobumfihlo ukususa i-metadata phambi kokukhuphela ukuba ufuna ukuthumela imifanekiso ngaphandle kolwazi lwendawo.

Ndingaguqula iifayili ezininzi JPG zibe GIF ngaxeshanye?

Ewe - tsala iifayile ezininzi JPG kummandla wokulayisha kwaye sizibeke kwifolokhwe ngokuthe ngqo. Abasebenzisi abakhululekileyo bafumana i-100 MB kwifayili nganye; iPremium ayinalo icebo kwifayili nganye kwaye iqhuba abasebenzi abathe ngqo, ngoko ke umfanekiso we-200-iqela ligqiba ngaphantsi kwemizuzu emibini.

I-JPG ithelekiswa njani ne-GIF kwi-Photoshop / i-GIMP kumsebenzi ofanayo?

Uguqulelo lwefomati ethe ngqo siqhuba i libpng / libjpeg- turbo / libwebp / ImageMagick imijelo yomhleli we desktop osebenzisa, ngemveliso efanayo yobunjani. Utshintsho luhamba ngaphaya kolawulo lweqela - iinkqubo ze desktop zivula ifayile enye ngexesha; siyamkela iqela.

Uphi ubungakanani obuzakubakho kwifayili yam GIF?

Okumiselweyo ku 1:1 — GIF wakho ugcina ubungakanani be-pixels yomthombo JPG. Ukuba ufuna ukuguqula ubungakanani njengenxalenye yokuguqula, sebenzisa /resize-image/ emva kokuguqula, okanye uyibeke kwi- /image-resize/ utility.

Ingaba i GIF incinane kangakanani na ukuba ingabonakali i-artifacts?

Kwi-JPG / WebP, umgangatho we-75-85 ufumana GIF 60-80% omncinane kune-JPG ngaphandle kotshintsho olubonakalayo kumgama wokujonga oqhelekileyo. Kwi-lossless GIF (PNG, TIFF), lindele ukonga okuncinci - ngokuqhelekileyo 5-30% nge-deflate / LZW uxinzelelo olungcono.