Mai Juyawa TIFF zuwa PSD

A matsayin diff, na'am, duk inda manufar take da wani wuri don sanya shi - nau'in kamara, daidaitattun nunawa, linzamin kwamfuta da GPS coordinates duk suna daukewa. GPS shine filin da ya cancanci tunani: idan hoton zai kasance an wallafa shi, amfani da zaɓin metadata-strip don haka ba ka daukewa inda hoton aka dauka. TIFF shi ne Format na Fayil na Hoto mai Dauke da Alama daga 1986, kuma shi ne format na scanning, publishing da kuma masana'antu na adana bayanai da aka ƙaddara a kan.

Ba da bayanai game da piksel, ba. Nau'ukan biyu suna adana hoton ba tare da ƙuntata ba, don haka hoton da ke fitowa yana daidai da wanda ya shiga kuma ana iya sake canzawa ba da daɗewa ba. Abin da ke canzawa shine girman fayil, da kuma abin da ke tafiyar da fasali - zurfin launin, siffofin da aka rufe, layuka da motsi ana goyon baya su duka ba daidai ba tsakanin nau'ukan da ba su da asara. TIFF wani akwatin da ya fi codec: zai iya riƙe bayanai ba-da-ƙuƙumi, LZW, ZIP ko har ma JPEG, a har zuwa bita 32 ga kowace hanya, da shafuka da yawa a cikin fayil guda. A PSD na kiyaye layuka, masks, moɗa na haɗewa, abubuwa masu hankali, layuka na daidaitawa da rubutun da ake iya gyarawa kamar ɓangarorin rayuwa daban-daban.

Hasken gani zai ci gaba idan aka je zuwa PNG, WebP, TIFF, GIF, ko SVG. Canja zuwa JPG zai sauya layin alfa zuwa bango mai fari — idan kana buƙatar hasken gani, ka yi niyya ga wani siffar hasken gani mai sani ba PSD ba.

An karanta siffofin launin ICC da aka rufe daga wurin asali TIFF kuma aka sake haɗa su zuwa fitarwa PSD inda siffar ke goyon baya (JPG, PNG, TIFF, WebP). Siffofin da ba su da goyon bayan siffar suna komawa zuwa sRGB.

An kiyaye EXIF na kamara (ISO, shutter, lens, GPS) bisa diff yayin da ake canja TIFF → PSD idan nau'ikan biyu suna goyon bayan metadata. Yi amfani da zaɓin sirri don cire metadata kafin ka sauke idan kana so ka raba hotuna ba tare da wurin geolokaci ba.

Na'am — ka ja fayiloli TIFF da yawa cikin yankin shigarwa kuma mu sanya su cikin jerin gwano a daidai. Masu amfani da kyauta suna samun 100MB ga kowace fayil; Premium ba shi da wani mataki na kowace fayil kuma yana tafiyar da wasu ma'aikata masu daidai, don haka wani bangare na 200-images na iya kammala cikin minti biyu.

@ action

Halin diff shine 1:1 — fitarwa PSD tana da daidaitattun girman piksel kamar yadda wurin asali TIFF. Yi amfani da wani mataki na daban na /resize-image/ bayan canjawa idan kana buƙatar rage girma ko ƙara girma a matsayin ɓangare na tafiyar aiki.

Ga JPG / WebP, inganci 75-85 na iya samun fayil 60-80% mafi ƙaranci fiye da asali TIFF ba tare da bambanci mai gani ba a tsayin gani na yau da kullum. Ga burin da ba a rasa ba (PNG, TIFF), ka yi tsammanin adadin adadin da ya fi ƙaranci - a kan 5-30% ta hanyar ficewa / LZW mai kyau.

Na'am — an yi aiki da fayilolin da aka tura TIFF a cikin masu aiki masu tsalle-tsalle kuma an share su cikin minti. Ba za mu karanta, adana, ko raba bayanan piksel ba. An yi takardar doka ta sirri da tagar tsarewa a /privacy/.

Na'am, don kyauta har zuwa 100MB. Premium na iya sarrafa manyan shigarwa (300MB+) da zurfin pixel daban-daban (16-bit PNG, 32-bit float TIFF). Pipeline na fitar da layuka na pixel, don haka amfani da ƙwaƙwalwar ajiya yana daidaita da adadin layuka, ba adadin pixels gaba ɗaya ba.