ELEN E48 Dgal Imag Procssng Mrm Eamnaon Sprng Soluon Problm Quanzaon and Human Encodng r k u P u P u r r 6 6 6 6 5 6 4 8 8 4 P r 6 6 P r 4 8 8 6 8 4 r 8 4 8 4 7 8 r 6 6 6 6 P r 8 4 8 P r 6 6 8 5 P r / 8 P r / 8 P r / 8 P r / 8 /4 5/8 r r r r 5 Avrag codord lngh:.875 < 8 8 8 8 8
Problm Imag Qual Enhancmn A smpl rlaonshp bn h mags and hr hsograms s llusrad n gur. Basd on h hsogram dsrbuon and ohr aurs ou can l r o prsn an mag nhancmn ssm o mprov havr qual o h orgnal mags h b mplong or combnng h approachs nroducd n h lcur such as hsogram srchng unsharp maskng hgh-pass lrng c. h gradng s basd on our proposal o h ssm. An manngul asbl and cn ps ll g som pons. Background Con Bod Con Dr Ara Background Bod Hr ar som possbl canddas: Scannd documn gur Orgnal mags and hr hsograms. h conras nhancmn o h con mag: b mplong a pcs lnar scalng on h prvous mag as ndcad n gur. h uncon could b: α u u v β u u v u α u u v u [ u [ u u [ u 55]
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b dscrbd as n gur. A sampl hrshold vcor s u u v v 6. Oupu v 55 v v α u u 55 Inpu u gur. Inns lvl slcng hs opraon has o cs: o mak h clarr b comprssng s corrspondng hsogram dsrbuon; and o rmov h rubbr dr b ncrasng s nns.
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Problm 4 Color Spac o o W hav R.5.5 B 4.5. h hu r componn has bn llusrad as n gur 4. r r gur 4. Hu componn o h mag Whn us a 99 avrag mask h rang o nrs s acuall concnrad n h small rgon.. rcangl ACI as n gur 4. As h mask gos no hs rgon h hu valu ll undrgo a gradual chang. h boundar o such chang can b dcdd b h pons A B C D E H and I and h hu valu bn an o adacn boundar pons ll hav a lnar chang. rsl l s ork ou h valu o h boundar pons. hs ob s as bcaus us pu h mask on h dsrd pon and calcula h oupu valu. A al hr s ha plas no h mask s an odd-sz on hl h mag s an vn-sz on. ha mans h boundar pons along h sparar o o colors acuall nclud o pons hs gus ar B H D and or our pons pon E. hs can b br llusrad as n gur 5 hr B s an nsanc. And should hav:
hb hb o or smplcaon us dno hb 6. Bu should rmmbr hr ar acuall o pons hr B and B. gur 5. h als n h boundar pon B h hu valus o h boundar pons ar as h ollong abls. h numbr n h bracks s h numbr o acuall pons as pland abov.
Ar g hs pons h hu valu bn an o adacn boundar pons ll hav a lnar chang. Snc h S and I componns ar unouchd hs s acl a roaon o hu n a S-I dnd annulus as n gur 6. gur 6. h roaon o hu n a S-I dnd annulus In h RB color spac h phnomnon can s s ha n sd h rgon ACI hr ll b a color gradual chang boundd b h pons A-I.