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Whakahōu te JPG

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He pēhea te whakarerekētanga o te JPG

1 Whakataki i te JPG images e hiahiatia ana e koe kia whakawhānui - mahi mai i te taketake tino nui rawa o koe, kaua mai i tētahi tārua kua whakaititia kētia.
2 Ki te tātai i tētahi whānui whāinga, tētahi tiketike whāinga, ōrau rānei, me te waiho i te kōkuhu ōwehenga āhua, engari rawa ka hiahia koe ki te whakaroa.
3 Ka whakahaeretia te whakarerekētanga o te rahi; ka tangohia ia faila i roto i te rōpū ki te ūnga ōrite i roto i tētahi whakawhitinga kotahi.
4 Whakataki te pūranga whakarārangi JPG, te tautuhi katoa rānei hei pūranga kotahi.

Whakahōu te JPG Ngā Pātai Auau

He pēhea te huri i ngā ahu a Whakahōu te JPG?
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Ko te āhua o te āhua, Ka whakamātau anō te whakaahua me tētahi tātari Lanczos, kātahi ka tāuru anō, ko te tikanga he whakatōpū anō hoki te whakatōpūtanga - kia kotahi anō te mahi i te taketake nui rawa o tātou, kaua i roto i ngā wāhanga.. Ka hoatu e koe he whānui whāinga, he tiketike whāinga, he ōrau rānei, ā, ka mahi mai i te taketake, kaua i te tārua i whakarārangitia i mua.
E rua. Ka kati te ōwehenga, ā, ka puta mai tētahi ahu mai i tētahi atu, ko te mea e hiahiatia ana e koe i ngā wā katoa. Ka katia, ā, ka whiwhi i te tau tika i tātuhia e koe, i te utu o te whakaroa — whai hua mō tētahi taupuni pūmau, hē mō tētahi whakaahua.
Ka rokiroki te JPG i te RGB 8-biti mā tētahi DCT ngaro me te 4:2:0 chromatic subsampling e te pūmau, nā reira ko te tuhipoka mārō me ngā taitapa mārō te mea tuatahi hei whakangākau. Koia te mea e whakatau ana mēnā ko te whakaiti i te faila he take anake o ngā pikitia, he take rānei o te whakakōrero anō.
He — Ka haere anō ia tiaki i te whakawhāiti, nā reira ka whakahōu anō te whakamātautau me te tiaki anō i tētahi JPG ki te ngaro i te whakawhanaketanga ahakoa kāore i whakaiti te whakarerekētanga o te āhuatanga.. E tika ana te whakamātau i mua i te whakarerekētanga o te rahi o te pūkete kāore e taea e koe te whakahōu anō.
Whakapae. Kāore e taea e te whakawhānui te waihanga i ngā taipitopito kāore i tangohia, nā reira ko te hua he putanga mārō o te taketake i te rahi nui ake. Ka whakamōrahi i ngā wā katoa i te pūtake nui rawa o tātou, me te whakamōrahi i te rahi kotahi i te wā kotahi, kaua i ngā wā.
E ōrite ana ki te taupuni e noho ana i roto. He iti iho te hiahiatia e te tīwae tīwae whānui nui ake i te 1920 ngā pikitia whānui, he whakaahua ihirangi 1200, he whakaahua iti 400, ā, ko te whakarua i ēnei tau e taupoki ana i ngā mārakerake DPI tiketike. Ko ngā mea katoa i muri i tērā he huaputa kāore e kitea e tētahi.
Ko tētahi mea i roto i te whānau raster ngaro — JPG, JPEG, JFIF me WebP — tae atu ki ngā āhua kāore i ngaro (PNG, BMP, TIFF) mēnā e hiahia ana koe ki te whakakotahi i a rātou ki tētahi rōpū. Ka pānuitia te āhua mai i te pūtāhua o te pūrākau, ehara i te whakaroanga, nā reira ka haere tonu te whakaahua i tiakina ki te whakatata hē.
He: Ko ngā pūkete wātea e mahi ana i ngā whakaahua tae noa ki te 5 MB ia, e āpiti ana i ngā whakaahua JPG me ngā whakaahua tātari; ka mahia te mahi e libjpeg-turbo me te libwebp, ko ngā puna ōrite he pātahitanga o te kaiwhakawhanake papamaha ki a ia. Ko ngā pūranga nui ake te mea kotahi e whakatūpato ana te taumata wātea, ā, ko te tepe i ia pūranga, ehara i te whakatōpūtanga.
Ko te pūtake ngaro te hua o tētahi whakawhitinga whakawhāiti, ā, ko tētahi mahi me tāpiri anō i tētahi tuarua. Ki te taea te mahi i te mahi me te kore e pā ki te raraunga pikitia ka mahi tātau i taua mea, ā, i te kore e taea e koe te kōwhiri i te take āhuatanga mārō kia kore ai e whiwhi i tētahi pūtake pūmau.
He. Ka whakarewa te tautuhi katoa ki roto i te rohe whakarewa, ā, ka whakatū i te raupapa i te taha kotahi me ngā whakaritenga ōrite — ko te take matua kia mahia tēnei i roto i tētahi kaitiaki, kaua i tētahi faila i tētahi wā i roto i tētahi kaiwhakawhanake. Ko ngā pūkete wātea e whakahaere ana i tētahi faila i ia rōpū; Ka whakarewatia e te whakawhitinga.
Ko te EXIF o te pūrere (ISO, shutter, lens, GPS) me te tātai ICC whakawaitara e mau ana i te pūmau, nā te mea ko te whakawātea i te tātai e whakarerekē ana i ngā tae i te tāuru anō. Ka whakamahia te kōwhiringa whaiaro hei whakawātea i te metadata i mua i te whakataki mēnā e whakapuakina ana e koe te pūkete.
Ko te No. Whakahōu te JPG e wātea ana me te kore kāwai, kāore he tohu wai i te huaputa, ā, kāore he pakitara whakaingoatanga i mua i te whakataki. Ka tangohia ngā tāurunga i te wā poto i muri i te mutunga o te mahi.

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