
pragatisheel graphics file

pee. jee. aff. (pragatisheel graphics file) ack wavelet-adharit bitmapped chhavi praarup haye joe haanirahit aur haani detta sampeedan koo niyojit kartaa haye. pee. jee. aff. koo jey. pee. ee. jee. praarup mein sudhaar aur pratisthaapan key liye banaaya gayaa thaa. ise jey. pee. ee. jee. 2000 key roop mein usee samay vikasit kiya gayaa thaa, lekin sampeedan anupaat parr gati parr dhyaan kendrit kiya gayaa thaa.
pee. jee. aff. adhik encoding/decoding samay liye binaa aur mool dee. tii. tii.-adharit jey. pee. ee. jee. maanak kii visheshta "avaruddh aur dhundhali" kalakritiyon koo utpann kiye binaa uchch sampeedan anupaat parr kaam curr sakata haye. yeh adhik parishkrit pragatisheel download kii bhee anumati detaa haye.
rung model.
pee. jee. aff. vibhinn prakaar key rung model kaa samarthan kartaa haih
takniki charcha.
pee. jee. aff. jey. pee. ee. jee. jodane yaa mapaniyata jaisi visheshtaon mein sudhaar karane parr ack behtar sampeedan gunavatta praapt karane kaa daavaa kartaa haye. iska sampeedan pradarshan mool jey. pee. ee. jee. maanak key samaan haye. bahut cumm aur bahut uchch sampeedan darr (haani rahit sampeedan sahit) bhee pee. jee. aff. mein samarthit hain. prabhaavi bitt daron kii ack bahut badee shrinkhala koo sambhaalane kii design kii kshamata pee. jee. aff. kii taakton mein seey ack haye. udaaharan key liye, ack nishchit raashi seey neeche ack tasveer key liye bits kii sankhya koo cumm karane key liye, pahale jey. pee. ee. jee. maanak key saath karane kii salah dee jaati haye kii ise encoding karane seey pahale input chhavi key resolution koo cumm kiya jaae-kuchh aisaa joe samanya roop seey usa uddeshya key liye aavashyak naheen haye jaba pee. jee. aff. kaa upayog karate samay isake tarang mapaniyata gunon key kaaran.
pee. jee. aff. prakriya shrinkhala mein nimnalikhit chaar charan hotey hainh
rung ghatakon kaa parivartan.
shuru mein, chhaviyon koo aar. jee. bee. rung sthaan seey dusare rung sthaan mein badalana padata haye, jisase teen "ghatak" alag seey sambhaale jaate hain. pee. jee. aff. ack poori tarah seey prativarti sanshodhit yuv rung parivartan kaa upayog kartaa haye. parivartan matricks iss prakaar hainh
chrominance ghatak hoe sakate hain, lekin aavashyak roop seey resolution mein down-scale naheen honah chaahiye.
tarang parivartan.
rung ghatakon koo phir ack manmaane gaharaai mein parivartit kiya jaataa haye. jey. pee. ee. jee. 1992 key vipareet joe ack 8x8 block-aakar key asatat cosine parivartan kaa upayog kartaa haye, pee. jee. aff. ack prativarti tarang parivartan kaa upayog kartaa haih byrthogonal see. dee. aff. 5/3 tarang parivartan kaa ack goal sanskaran. yeh wavelet filter baink bilkul jey. pee. ee. jee. 2000 mein upayog kiye jaane vaale prativarti wavelet key samaan haye. yeh kewal purnank gunank kaa upayog kartaa haye, isaliye output koo goal karane (matratmak) kii aavashyakta naheen hoti haye aur isaliye yeh kissy bhee matratmak shore koo pesh naheen kartaa haye.
matratmakkaran.
tarang parivartan key baad, gunank koo gunavatta key nuksan kii keemat parr, unakaa pratinidhitva karane key liye bits kii matra koo cumm karane key liye scalar-quanties kiya jaataa haye. output purnank sankhyaon kaa ack samooh haye jise bitt-baay-bitt encode kiya jaanaa haye. antim gunavatta nirdhaarit karane key liye jiss mapdand koo badala jaa sakata haye, vaha haye matratmak charanah jitna adhik kadam hoga, sampeedan aur gunavatta kaa nuksan utanaa hii adhik hoga. ack matratmak charan key saath joe 1 key barabar haye, koee matratmak pradarshan naheen kiya jaataa haye (iska upayog haani rahit sampeedan mein kiya jaataa haye). jey. pee. ee. jee. 2000 key vipareet, pee. jee. aff. kewal dou kii shaktiyon kaa upayog kartaa haye, isaliye parameter maan "i" 2 "i" key matratmak charan kaa pratinidhitva kartaa haye. kewal dou kii shaktiyon kaa upayog karane seey purnank gunan aur vibhajan sanchaalan kii koee aavashyakta naheen hoti haye.
coding.
pichhali prakriya kaa parinam "upa-patton" kaa ack sangrah haye joe kaee sanniktan taraju kaa pratinidhitva kartaa haye.
ack upa-patti "gunank" kaa ack samooh haye-purnank sankhya joe ack nishchit aavritti seema key saath-saath chhavi key sthaanik kshetra seey judee chhavi key pahaluon kaa pratinidhitva karati haye.
matratmak upa-pattiyon koo aage "khandon" mein vibhajit kiya jaataa haye, tarang kshetra mein aaytaakaar kshetra. unhein aam taur parr iss tarah seey chunaa jaataa haye kii upa-pattiyon mein unake bheetar gunank (punarnirmit) chhavi kshetra mein lagbhag sthaanik khand banaate hain aur ack nishchit aakar "macroblock" mein ekatra kiye jaate hain.
encoder koo ack macroblock key sabhi matratmak gunank key bits koo encode karna hotaa haye, joe sabse mahatvapurna bits seey shuru hotaa haye aur cumm mahatvapurna bits kii or badhata haye. iss encoding prakriya mein, macroblock kaa pratyek bitt-plain dou tathaakathit "coding paas" mein encode hoe jaataa haye, pahale mahatvapurna gunank key bits koo encoding, phir mahatvapurna gunank key bits koo parishkrit karna. spasht roop seey, haani rahit mode mein sabhi bitt-plain koo encode kiya jaanaa chaahiye, aur koee bitt-plain naheen giraaya jaa sakata haye.
kewal mahatvapurna gunankon koo ack anukuli runn-lambai/chawal (aar. ell. aar.) coder key saath sampeedit kiya jaataa haye, kyonki unamen shoonya key lambe runn hotey hain. aar. ell. aar. coder jise "key" (shoonya key ack runn kii laghuganak lambai) key saath maanaa jaataa haye, koo 2 "key" crum key praathamik golamb code key roop mein bhee jaanaa jaataa haye.
anya file praarupon key saath tulanaa.
samanya jey. pee. ee. jee. maanak kii tulanaa mein pee. jee. aff. key kaee swa-ghoshit laabh hainh
upalabdh software.
lekhak ney ack srot key madhyam seey "libpgf" prakaashit kiya, gnu cumm samanya saarvajanik licenses sanskaran 2 key tahat. xeraina ack muft windows kansol encoder aur decoder pradaan kartaa haye, aur 32 bitt aur 64 bitt windows platforms key liye WIC parr adharit pgf darshak. file explorer sahit anya doubleu. aaee. see. anuprayog iss darshak koo sthaapit karane key baad pee. jee. aff. chhaviyon koo pradarshit karane mein saksham hain.
digicum ack lokpriya open-source image editing aur catalogging software haye joe apane thumbnail key liye "libpgf" kaa upayog kartaa haye. yeh pratyek thumbnail key ekal sanskaran koo sangraheet karane key liye pee. jee. aff. chhaviyon kii pragatisheel decoding suvidha kaa upayog kartaa haye, jise phir binaa kissy nuksan key vibhinn sankalpon mein decode kiya jaa sakata haye, iss prakaar upayogkartaon koo thumbnail key aakar koo phir seey ganana kiye binaa gatishil roop seey badalane kii anumati detaa haye.
bhee dekhein.
file vistaar.
file extension cock _ 1 aur tii. ell. aeye. pee. jee. aff. kaa upayog asambandhit uddeshyon key liye bhee kiya jaataa haih