Lub JPEG thiab-g.webp
Ntau txog JPEG
JPEG sawv cev rau Pawg Kws Tshaj Lij Tshaj Lij Tshaj Lij, tom qab pawg thawj coj uas tau tsim nws thaum xyoo 1990's. Nws yog ib txoj kev lossy compression (tus qauv algorithm) uas yog ib qho kev sib pauv ntawm qhov loj thiab qhov zoo ntawm daim duab. Nyob rau hauv lossy compression me me cov ntsiab lus yog neglected kom txo qhov luaj li cas ntawm cov ntaub ntawv. JPEG compression algorithm yog qhov ua tau zoo tshaj plaws nrog cov duab nrog cov duab tiag tiag nrog kev hloov me ntsis ntawm lub suab thiab xim. Nws qhov kev ua tau zoo kuj qis nrog cov kab kos xws li cov tsiaj ntawv, logos thiab cartoons. JPEG txhawb 24-ntsis cov duab puv xim.
Ntau yam JPEG muaj nyob rau hauv kev siv nrog cov ntaub ntawv txuas ntxiv.jpg,.jpg,.jpg,.jif,.jfif,.jfi. JFIF yog tus qauv qub tshaj tawm hauv xyoo 1992 thiab JPEG 2000 yog tus qauv tshiab ntawm tus qauv uas ua rau ob qho tib si poob thiab tsis muaj compression thiab siv 'wavelets' txoj kev thiab muaj peev xwm compressing dluab ntau tshaj 20%. JPEG/Exif version yog hom nrov tshaj plaws siv hauv cov duab kos duab xws li cov koob yees duab digital thiab cov xov tooj ntse.
Ntau txog GIF
Qhov txawv ntawm JPEG thiab-g.webp
• JPEG yog ib txoj kev lossy compression, thaum-g.webp
• JPEG txhawb 24-ntsis tag nrho cov duab xim, thaum-g.webp
• JPEG txo qhov loj me ntawm cov ntaub ntawv los ntawm kev poob cov ntsiab lus ntawm cov duab, thaum-g.webp
• JPEG haum rau cov duab tiag tiag thaum,-g.webp
• JPEG yog siv hauv cov koob yees duab digital thiab cov khoom tsim duab, tab sis cov xim tsis muaj xim tiv thaiv kev siv-g.webp
•-g.webp
