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Ajiye fayiloli a cikin tsarin .JPEG
Yana da ɗan tatsuniyoyi cewa duk lokacin da kuka adana fayil azaman .jpeg da kuka rasa bayanai kuma matsi ke faruwa. Masu daukar hoto da yawa sun daɗe suna ɗaukar cewa idan ku adana fayil dinka azaman .jpeg cewa kuna asarar bayanai da yawa. Kuna iya… ko a'a.
Wasu gaskiyar game da JPEG:
Shekaru da yawa, akwai takaddama game da amfani da JPEG. Kimanin shekaru 5 da suka gabata, an kawo masu shirye-shirye (ba masu ɗaukar hoto ba) don zurfin nazari a cikin kyakkyawan adadin bayanai na fayilolin JPEG kuma sun sami damar ba da haske game da amfani da su.
- Kuna sake matsa fayil ɗin idan kun adana shi azaman sabon fayil, ba idan kawai kun danna ba 'ajiye'.
- Idan ka bude fayil sama, watau ana kira "Apple" kuma buga adanawa, zai adana bayanan tare da canje-canjen da aka gyaru kuma ba za'a sami matsi ko asara ba.
- Kuna iya bugawa sau miliyan kuma zai iya zama daidai da ainihin ainihin ainihin.
- Idan ka latsa 'adana kamar…' kuma sake saka sunan fayil din "Apple 2", kuna da matsi da asara. Danna 'ajiye' kuma babu matsi.
- Yanzu ka dauka "Apple 2" da kuma 'Ajiye azaman…' “Apple 3”, zaku sake samun matsi.
- Yanayin matsi shine 1: 1.2 don haka kawai kuna samun sake adanawa 5 ne kawai kafin ku rasa ingancin da zai zama sananne.
- Hakanan yana da mahimmanci a lura, JPEGs basu fiye matsa fayil ɗin kawai ba, suma suna rasa launi da bambancin bambanci.
- Waɗannan lambobin da lambobin misalai ne don sauƙin bayani, amma bari a ce hoto yana da launuka 100 da maki masu banbanci 100. Fayil na RAW ko TIFF za su yi rikodin dukkan launuka 100 da maki masu bambanci 100. Koyaya, lokacin da aka ɗauki hoto azaman JPEG, nau'in kyamara yana yin ɗan post-post kuma yana gyara muku hoton. JPEG zai kama kawai 85 na launuka da 90 na bambancin maki. Yanzu ainihin rabo da asara suna da canzawa dangane da hoton kuma babu wata takaddar dabara, amma takaitaccen bayani shine; idan kayi harbi a RAW ko TIFF kana samun 100% na bayanan. Idan kun harbe JPEG, ba kawai sako-sako da launuka da bambanci bane amma sannan zaku sami matsi 1: 1.2. Hakanan wannan gaskiya ne don idan kuka ɗauki RAW ko TIFF fayil a cikin kayan aikin bayan-abu kuma kuka adana azaman JPEG, zai yi launi iri ɗaya / bambanci baya ga matsi na jujjuyawar. Mafi sau da yawa, ba a bayyane sananne. Babu asara idan kayi kwafa da liƙa fayil daga wannan hanyar zuwa wancan shima, amma za'a canza metadata ɗinku. Wannan yana cikin la'akari idan kuna son tabbatar da ikon mallaka ko shiga takara. Yawancin gasa yanzu suna buƙatar fayil ɗin asali azaman tabbacin metadata / mallaka.
Ta Yaya Zaku Ajiye Hotunan Ku: Shin JPEG Abin yarda ne?
Fara da karanta wannan labarin da tsokaci akan ABUBUWAN SIFFOFI DAN KARE AJE don haka kun saba da sharuɗɗan.
- Idan kuna harbi "takaddun shaida", musamman dangi mara izini ko bikin jam'iyya, to kuyi harbi a cikin JPEG kuma ku riƙe su a matsayin JPEGs.
- Idan akwai wata dama da zaku kama wani abu “mai girma”, to kuyi harba a cikin RAW. Sannan lokacin da kake adana fayil ɗin, dole ne ka adana kwafi 3: ainihin fayil ɗin RAW, fayil ɗin da aka tsara / layi (TIFF, PSD, ko PNG, zaɓinka), sannan kuma sigar JPEG ta fayil ɗin da aka shirya don ƙarin fa'idodi masu amfani.
- Ni da kaina na ci gaba da mataki na gaba kuma na adana 60% matsa JPEG kuma, don amfani akan intanet. Wannan saboda haka zan iya amfani da shi akan gidan yanar gizo, kundin faifai, da sauransu kuma kar ku damu da wani ya saci cikakken kwafinsa. Ban taba buga wani abu akan layi wanda yake da cikakken girma ba, harma mutane suna harbi. Ba wai kawai zai rage yawan fili da za ka dauka a shafin ba, amma idan har akwai wata takaddama, mai sauki ne; Ina da cikakken girman sigar.
"Amma yana ɗaukar daki sosai!"
Sau da yawa nakan ji wannan daga mutane. Matsalar yawancin masu daukar hoto a yau shine basa tsammanin abin da suke may so suyi da hotunansu shekaru 5 ko 10 daga lokacin da suka fara ɗaukar hoto. A lokacin da kuka koya cewa kuna son duk waɗannan fayilolin, shekarun dubun dubata ne kuka ɗauka kuma ba za ku iya murmurewa ko sauyawa ba idan kun rage kan hanya da wuri. Don haka ee, yana ɗaukar sarari da yawa, amma a zahiri gaskiya, rumbun kwamfutoci suna da arha idan aka kwatanta da farashin fata da kun kiyaye wasu juzu'i ko lokacin da zai ɗauka don ƙirƙirar waɗannan nau'ikan sigar duk-kaɗan.
Kun kashe dubunnan daloli akan kayan aikinku don kamawa da amfani da hotunan da zasu nuna muku wani abu har tsawon rayuwarku, $ 150 mafi yawa don adana wasu fayilolin 50,000 ya zama babu-komai.
Chris Hartzell yana da sama da shekaru 3 yana tafiya da daukar hoto a cikin sama da ƙasashe 20 kuma ana iya samun aikinsa a cikin kalandar duniya, tallace-tallace, mujallu, da baje kolin ilimi tare da jagorantar tarukan karawa juna sani, yawon shakatawa na namun daji, da kuma koyar da azuzuwan daukar hoto. Kuna iya ganin ƙarin game da shi da aikinsa a shafinsa, PhotoStrokes.net
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Gaskiya babban bayani! Godiya don daukar lokaci don rabawa.
Menene ??? Ina tsammanin akasin haka ne - adanawa azaman 'adana kamar' bai sake damfara fayil ɗin ba, amma kawai bugawa 'adana' DID ya sake matsewa. Abinda nake karantawa kenan tsawon shekaru! Kai.
Yana da alaƙa da adana sababbin canje-canje. Idan kawai kuna ajiyewa ba tare da komai ba, to babu abin da ya ɓace. Wancan ya ce, yana da wuya matsala sai dai idan kuna adanawa tare da canje-canje tan sau da sau sau. Buɗe - Ajiye - Kusa - Buɗe - Ajiye - Kusa x…. gungu.
Wannan shine dalilin da yasa nake son shafinku sosai…. Gaskiya ga alheri, kawai ina wannan tunanin ne… Na fara jin kamar ina kankame rumbun kwamfutarka ta hanyar adana hoto sau uku daban…. RAW, tsarin PSD da Jpeg…. Na yi farin cikin sanin cewa ina kan madaidaiciyar hanya ;-)
Wannan labarin ya kasance mai ban mamaki! Koyi sabon abu yau da safiyar yau. Loveaunar wannan rukunin yanar gizon! Na gode da rabawa kuma yanzu ina buƙatar daidaita saitunan kyamara na 😉
Na gode da wannan bayanin. Abin da nake tsammani yana da kyau sosai, amma da kyau a tabbatar da shi.
Yaya za'ayi idan kuna yin yawancin gyaran ku a cikin LR? Lokacin da kuka fitar dashi azaman jpg, shin akwai wani abu mai matsi?
Ina so in tabbatar… Lokacin da kuka shigo daga kyamararku, kuna so kuyi sau 3 kuma azaman nau'ikan fayil? (Ni ɗan boko ne, amma ina so in koya daidai. Shi ya sa nake son shafinku!) Na gode…
Pam, ba daidai ba. Kuna harba a RAW ko JPEG a cikin kyamara, duk wanne kuka fi so dangane da bukatunku. Kuna shigo da pics din yace cikin LR. Sannan idan ka fitar da su, lokacin ne zan bada shawarar a fitar dashi zuwa fayiloli daban-daban har guda 3, wanda zai baka duka fayiloli guda 4 gaba daya: 1) fayil na asali a inda yake na asali don haka yana rike da duk dadaddun abubuwansa na asali, 2) wanda aka fitar dashi TIFF da aka fitar dashi. wanda shine "kwafin ajiyarku", 3) wanda aka fitar dashi wanda aka tsara JPEG wanda shine mai sada zumuncin ku da sauran aikace-aikace kamar amfani dasu a kalma, da sauransu, 4) 40% an matse (saitin yana a 60%) an fitar dashi an gyara JPEG don amfanin yanar gizo.
"Kuna sake matse file ne kawai idan kun adana shi azaman sabon fayil, ba idan kawai kun danna" Ösave 'ba. "Don haka ku kyauta ku gwada wannan da kanku. Na buɗe JPG wanda ya kasance 923KB. Ban gyara fayil ɗin ba ta kowace hanya. Na yi Ajiye (ba Ajiye As) ba. Fayil din da aka samu ya kasance 472KB. Wancan, abokaina, matsawa ne.
Paige, matsawa wanda yawa yana da alaƙa da saitunan shirin ku. Babu wata hanya a cikin kowane shiri idan kuna da duk saitunanku masu kyau waɗanda aka saita daidai wanda kuka buge shi kuma nan take ya kai rabin girman.
Bari mu gani idan zan iya kara bayani. Matsawa yayin adanawa da adana-as. Amsar mai sauki kawai "adana kamar yadda" zai sake matse fayil ɗin. Wani gwajin da aka yi shekarun baya ya gano cewa wasu manyan masu sarrafa bayanai masu martaba tare da IBM, waɗanda suka buga "adana" sau dubu a cikin Lightroom 2 tare da fayil ɗin JPEG sun yi kwatancen bayanai da ainihin fayil ɗin. Ba su sami kusan bambanci a cikin adadin bayanan da abin ya shafa ba. Sun yi shi tare da "ajiye azaman" kuma sun gano cewa bayan kusan sabon fayil na 5 (ta amfani da misali, zai zama "Apple", sannan a sake adana shi azaman "Apple 1", sannan a sake adana shi azaman "Apple 2", sannan an sake adana shi azaman "Apple 3", sannan aka sake ajiye shi azaman "Apple 4", sannan aka sake ajiye shi azaman "Apple 5"), fayil na karshe (Apple 5) an matse shi sosai akan asalin (Apple) har zuwa bayyane yana lalacewa. An sake maimaita wannan gwajin ta amfani da PhotoShop kuma kusan an sami sakamako iri ɗaya. Yanzu, wani yana da ma'ana game da shirin da kuke amfani dashi. Wasu shirye-shiryen sun fi wasu kyau. Wasu ba za su yi wahala da komai ba, wasu za su yi shi sosai. Dalilin shine lambar algorithm don adana fayil ba'a samu a cikin shirin ba, amma an samo shi a cikin algorithm ɗin tsarin JPEG kanta. Bari in gani ko zan iya bayanin yadda: Idan wani zai rubuta “halin ɗabi’a da manufa” ?? na JPEG, zai zama da gaske, “don adana sarari” ??. Bayanin sauƙaƙe na wannan shine lokacin da za a adana fayil ɗin, yana duban pixel ɗaya sannan a kalli pixels da ke kewaye da shi. Ta hanyar misali kamar dalilai, bari muyi amfani da pixel 10% misali. Ya kalli mahimman pixels guda 8 kuma ya ga wasu pixels guda 3 suma ja. Suna ja 15% ja, 11% ja, da 8% ja. A algorithm a cikin JPEG yace (hasashe), "duk wani piksel da yake ja kuma tsakanin kewayon 9% -11% za'a canza shi zuwa 10%" ??. Don haka 15% ya kasance 15% haka kuma 8% ya kasance iri ɗaya, amma 11% ya faɗi zuwa 10% kuma ya haɗu tare da sauran pixel don adana sararin bayanai. Yanzu, wasu shirye-shiryen suna da ikon "kulle" ?? pixels ko rage kewayon algorithm. Don haka wataƙila wani shiri ya birkita shi kuma ya ce, “Ba zan iya hana ku sauya pixels kewaye ba, amma zan gyara zangonku zuwa 9.5% -10.5%” ??. Tabbatar da abin da kowane shiri ke yi a zahiri ba a sani ba (ko kuma aƙalla a cikin sa'o'i da yawa na neman ban sami wanda ya zo kusa da gano su ba). Babu alama akwai bincike mai yawa a ciki. Mafi yawa saboda Na gano cewa akwai masu canji da yawa a ƙoƙarin tantance shi. Kowane kamara yana rikodin JPEG tare da ɗan bambanci kaɗan sannan kowane shiri shima yayi shi. Don haka damar fitowa da sikeli ko jadawali zai zama kusan ba zai yiwu ba, ko kuma aƙalla ba zai yiwu ba sai dai idan kai mutum ne mai gajiya sosai da dubunnan awanni a hannuwansu.Wannan duk yana nan gaskiya lokacin da ka adana RAW ko TIFF Ba ni da cikakkiyar masaniya game da tasirin PSD zuwa JPEG. Ban sami damar samun cikakkun bayanai masu amfani a kai ba, banda wasu, “Na gwada wannan a gida” ?? irin gwaje-gwaje. Game da sake adana PSD, duk bayanan bayanai zuwa gare shi yana riƙe da 100%. Amma gaskiya ban san yadda ake gwada shi sosai ba.
Idan kayi ajiyar kamar File1, sannan File2, sai File3 da sauransu sun banbanta, yin tanadi kamar Fil2, bude File1 sai kayi ajiyar kamar fayil na 2, saika bude File2 ka ajiye a matsayin file3. Zaku iya bude fayil na asali kuma ku adana shi sau nawa kuke so tare da sabon suna tare da matsawa jpg guda ɗaya tak da aka ƙara cikin fayil ɗin. II idan ka bude fayil ka ajiye da sabon suna. buɗe sabon fayil ɗin ajiya tare da sabon suna, buɗe Sabuwar fayil ɗin, adana tare da sabon suna, a nan ne batun matsi zai shigo.
Morearin abubuwa 2… idan kuna son gano ainihin yadda kyamarar ku ko shirin ku ke sarrafa JPEG, zaku iya yin gwajin da kanku: saita kyamarar ku don yin rikodin RAW + JPEG. Aauki hoto Bude duka a cikin LR. Na farko, aika da TIFF azaman JPEG wanda ba a taɓa shi ba. Sannan buɗewa da fitarwa asalin JPEG wanda ba'a taɓa shi ba. Sake shigo da wannan fitarwa JPEG sannan sannan a sake fitar dashi Yanzu buɗe duk fayilolinku gefe da gefe; TIFF, JPEG daga TIFF, asalin JPEG, na 1 an fitar dashi JPEG, na 2 an fitar dashi JPEG. Buga su duka har zuwa akalla 400%. Yanzu gwada su duka sosai. TIFF ya zama mafi kyau. JPEG daga TIFF da asalin JPEG yakamata ya zama na biyu mafi kyau kuma kusan rashin kulawa. Lines akan ɗayan JPEGs da aka fitar dashi yakamata su zama jawged ko taushi. Wane digiri ne zai gaya muku ainihin abin da haɗin kamarar ku / software zai yi. Don haka zaku tura hoton ku zuwa firintar kuma suna ɗaukar TIFF ko JPEG. Koyaushe aika TIFF akan JPEG, amma sau da yawa TIFF ya cika girma don imel. A wannan yanayin, na aika JPEG kusa da ainihin fayil ɗin RAW kamar yadda ya yiwu. Ni kuma zan kara game da maki 10 zuwa kaifi. A kan ɗab'un bugawa da yawa, wannan zai taimaka wajen daidaita wasu tasirin matsawa a cikin JPEG.
Amma sai ina cikin mummunan yanayi lokacin da nake buƙatar ba wa abokin ciniki hotunan. Bai kamata in aika fayilolin RAW ko TIFF ga kwastomomi na ba, don haka kawai zaɓin shi ne matsa JPGS….!? Ugh! Ni tabbatacce ne Newby kuma wannan na kasance idan gwagwarmaya inhavevwgucg ya sa na buƙaci in daina. Zan gyara a ugh datsa ko hoto. Fayil na meg 14 na asali an sami gyara… sannan na “ajiye azaman” kuma na kasance tare da 4 mg jpg na abokin ciniki. Aaaughhh! Taimako !!