Āhuatanga teitei-hōputu, te tono, me te take mo te rongonui

Ko tētahi o nga mahi matua anga te Imposer o ngā pae hou he nohopuku uta whārangi pūtirotiro. Mai kore he hoahoa iti rite reira kaiwhakamahi katoa i ki te kitea te ngātahitia i waenganui i te hoahoa ataahua ki whakairoiro huatau, me te tere o te rauemi tukutuku. I mua, i roto i te tikanga ki te whakaiti i te taimaha o nga whakapakoko, i nga ngā o ngā pae whakamahia ranei GIF, JPG ranei. Na whakamahi ake me te ake kaihoahoa tukutuku whakapakoko i roto i te hōputu teitei. Tahi, kia tamata tatou ki te mahino aha te tupu tenei.

Teitei-hōputu aha i tapa

Whakarāpopototanga, e ko te ingoa o tenei momo o te tuhi, i hanga i te pukapuka tuatahi o te kupu Pākehā e whai ake nei: ". Whakairoiro placeable mō te whakamahi i runga i te whatunga" whakairoiro whatunga kawe, e taea te iritihia rite Kua whakaaro āta teitei-hōputu ki te whakakore i te āhuatanga o te kōpeketanga te whakamahi i te GIF hātepe ohie, e āta timata ki kua riro tawhitotia. I tua atu, kia ki etahi whānuitanga kia whakamahia reira ki te whakakapi i te TIFF mōmona nui, whakamahia te nuinga hoki whakatika.

He aha te teitei-hōputu

I teie mahana whakamahia whānuitia e rua putanga o te hātepe. I roto i te take o mua e tono reira he bit-8 papatae tae, a i roto i te tuarua - 24 moka. Photos i roto i teitei-8 hōputu, whakaritea ki a GIF-putanga faikehekehe paku pai ake ōwehenga kōpeketanga me te kore o te kaha ki te hanga i pakiwaituhi. Ahakoa te meka e taea i roto i taua whakapakoko i te mōrahi o 256 tae, Kei te whānui whakamahia tenei hātepe papatono ki te waihanga i tētahi kauwhata kuputuhi, waitohu, whakaahua ki te taha motuhake, me ngā whakaahua ki te mārama rōnaki. I roto i te wā i reira e kore te mea nui tenei, te whakamahi i ngā moka-24 teitei-hōputu, e kua he rota o painga atu, pērā i:

• Hātepe kōpeketanga Superior, e whakaiti ki noa iho tetahi mate o te kounga.
• Ko te kaha ki te whakamahi i Arepa te māramatanga whakarato 256 taumata rerekē o te mārama.
• Ko te aroaro o te gamma ako, e whakarite aunoa i te wherikotanga o te whakapakoko, ka tākaro i roto i ngā hōtaka rerekē.
• Ko te kaha ki te whakamahi i pā ana ki 16.7 miriona tae.

tenei katoa whakahaere tahi te PNG24 tono ki te kōpeke tetahi whakapakoko ngā nga wahi mārama o tuhi ki atu tae, me te koi tapa o te whakapakoko.

whanaketanga au

Ahakoa te meka e te horapa o teitei-hōputu akiaki tonu i pūtirotiro pakeke, me te iti, me te oti tautoko o tenei āhuatanga hātepe i roto i putanga hou, teitei hoki whakairoiro tukutuku ko te tino whaihua. Ina whakaritea ki GIF kua reira e toru painga nui: he hongere ārepa, gamma ako me te interlacing rua-ahu (he tikanga o ahu whakamua pikitia whakaatu). Na whakaritea ki JPEG reira e kore mate o kounga. Kia mōhio e i whakaaro te teitei-hōputu e January 4, 1995. Mai reira kua haere 18 nga tau, a ka meinga e ia he mata mo te whakamahi i roto i tukutuku, GIF aki ki wahi tuarua. Te nuinga ritenga pūmanawa whakairoiro (hei tauira MS Paint) tangohia tenei ra reira rite te paerewa mō te whakaora kōnae "i te taunoa". Pea, ki te kahore hākoritanga me te quirks o ngā putanga tawhito Internet Explorer, GIF ki hoatu ara ki tona tāwhai mua.