1Whakarewa i tōna JPG images ki roto i te kāwai i runga ake nei, ka tīpako rānei i a rātou mai i tōna pūrere — kāore he mea hei whakatū, kāore he pūkete hei waihanga.
2Ka kōwhiria te uaua ki te whakatūtū: he hua, he whāinga bitrate rānei, ā, ka taea te iti iho ngā ahu mēnā he nui ake te rahi i te taipitopito.
3Ka tīmata te mahi, ā, ka whakaaetia e ngā kaimahi te whakatū i te pūrere; kāore i te whakarerekētia tōmu taketake i te wāhi.
4E whakataurite ana i te rahi hou ki te taketake, kātahi ka whakataki te pūkete whakawhāiti JPG.
Ka whakawhāiti JPG Ngā Pātai Auau
He pēhea te Ka whakawhāiti JPG kia iti ake te faila?
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Ko te āhua nei, Ka whakarewa anō e te kaituhi te DCT quantum i te take āhuatanga ā-waiho e kōwhiria ana e koe, nā reira ka puta mai te tiaki i ngā tauwhāiti i te āhua o ngā tauwhāiti nui ake, kaua i te iti iho i ngā pikitia — kāore anō kia huri te ahu o te whakaahua, ā, ko te āhuatanga 80 te wāhi mārō noa iho.. Kāore he mea e whakawhirinaki ana ki tō koe i te whakatū i te pūmanawa: ka haere te mahi i te taha hoapā, ā, ka hoki mai i tētahi pūranga oti.
He iti ake te rahi o te tāruatanga o te tāruatanga o te tāruatanga?
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E whakatauria ana e te ihirangi, ehara i te utauta. Ko ngā taipitopito whakaahua, te rākau kiriata me te mārō sensor e ātete ana i te whakawhāiti; tae mārō, ngā rohe nui ōrite, te toi raina me te whakaroa tuhituhi. E tūmanako ana ki tētahi whakaititanga nui i runga i tētahi whakaahua, i tētahi tohu rānei, ā, he iti noa iho i runga i tētahi whakaahua mārō.
Ka huri te āhua o tōku pūrangapū i te nui o te āhua o te pūrangapū ka taea e au te tiaki?
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He tino nui rawa. 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. Ka whakataua e taua mea te mokowā o te hau e wātea ana, ā, mēnā ka utu te taumahatanga ki a koe he mea i roto i te pono.
Tērā tētahi mea motuhake ki te JPG me mōhio au i mua i te whakawhāiti?
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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.. He pai te mōhio i mua i te tuhituhi i tētahi taketake e hiahiatia ana e koe.
He aha te hapa tino noa iho i te wā e whakawhāiti ana i te JPG images?
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Ka whakapeka anō te pūkete o te pūkete ōrite. He whakatipuranga hou o te ngaronga ia whakawhitinga i runga i tētahi hanga ngaro, ā, ka whakaiti te pūtea i te wā e whakatōpūtia ana te raruraru. Hiko mai i te taketake ki tōna ūnga i roto i tētahi hipanga, me te pupuri i te taketake.
He aha te whiwhingau ki te hokinga, ā, ka taea e au te whakahaere i te whakawhitinga?
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He tahi te pūkete whakawhāitia tāuru, i tētahi taumata āhuatanga e kōwhiri ana e koe i te mea kāore i te pūtake pūmau. Mēnā kāore tonu te hua i te iti rawa, ka nui ake te whakaiti i ngā ahu pikitia i te whakaiti i te kāwai o te āhuatanga.
He aha ka taea e au te whakarewa ki Ka whakawhāiti JPG?
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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.
Tērā tētahi tepe o te rahi o te pūranga i runga i Ka whakawhāiti JPG?
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He: Ko ngā pūkete wātea e mahi ana i ngā whakaahua tae noa ki te 25 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.
Ka whakaiti te Ka whakawhāiti JPG i te āhuatanga o tōku JPG images?
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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.
Ka taea e au te whakahaere Ka whakawhāiti JPG i runga i ētahi JPG images i te wā kotahi?
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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.
He aha e pā ana ki te EXIF me te raraunga tātai tae?
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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.
He aha te utu o Ka whakawhāiti JPG?
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Ko te No. Ka whakawhāiti 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.
