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Image Restoration Unit-3

Image processing

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0% found this document useful (0 votes)
54 views12 pages

Image Restoration Unit-3

Image processing

Uploaded by

vikramsingh3859
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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> Usd to impure the abbearonce of an raze . Trays rerdrrabion is objechive Cuntike exhan coment which yp bubjeclive) since th ie based on mabhemetiol ee prrbrdidishic ynodols of dnaage dipredalion , Rubrbion al ds to necmbincl gt Recerver 01 Amoge thck has been digreaded by wing pricy Aeacetidye of the degradation pheneretnen - A model of the image degiadalion| aortoralion pewocess Le FAY) be the erynel fp dmg J Lyy) the preoducod dugroded drege Gaven JI), rome Ferowlsdge boul bee dagrodalion dunchory H, and seme — frrourledge about tbe additive yuire town 1 Gy), the ebjectie of susteraber ts be obtain an erlirake a PLXY) of dhe origin rrage - Deyendation| aluy) = Ta . 6 Rollin |” flay | ee 7 ”| filler wf of Gy) Noise ee 1 Releration di- a madel of deg dagredehen } serbetabion prtocess YH ibe Linese, poribion _invationt pws then Plays blag xf Gr) tN where hy) Is the Apediod neposintelicn of Uhe degradodion portion. a Nowe Modebs — Naso arises duxing image acfuirdticr, andlor — lransriryion Ketse tay nome partaractens thd define Ue spoil Gnd Jor Jualueny characlevslicn a) naire While noise — The moive, am which Ybor Towcdiex specheurn of noise As conslank- Noise Probabilely Densily funcleons I+ Geussion noise - The PDP of a Gauwrsian sender Variable ,Z, is given ly -(a-ugy* [2 pézy= 4 Vane where Ze repress gray Arve AL ts the mean of average Voluc of Z, and o ip dtandazd daewelion z Variance of Z> 7 EZ Vee ae a eee Groaursienn VBR o-Go1 b----~-- --t Jee a | fi f f 4 Jos oy Ta Ta Ze Apbroe. Tote of Vebues of Z will be in the 707g [C4s09, Cured] ond abeul 954, dn Ue ronge | Ch-20") , (42a) ] Gauritan rroise ynvdet Jens smabhemationt Uroclabibily 1? We palit and — uedurrey domains » dol) 2+ Ragleigh Note - The PDF of Paybigh rive de - -l2-e)), biz) = % (2-4) € tn 2d0 ° fa zea the vusan of densily Meat Sable Voriane af densely B . bz) ator fe eons ylesyh cha Plob of Raylegh poe. a af i 2 Beric shabe of this densily is Akewed by Ihe seaght 3 bsbing (Comm) Nove - The PDF iy - be bgt! eae a tn Z20 blz) = 0) } for ZO Where 0 d0, b as +e Ariegen Mean of Eating rynse denrily "5 - bt La Ke aed av! we a | 4 | “ Exponnnba Hos Te POF ww - se” fa BO b= f . afeee When a >0 . al? L \ Meer a= Vauiene o- | Nele- This ih a specie code of Exlng . POF with Sed . Zz 5- Vnifm Newe - i cz eh ple? = fir yoszel ° Aho” oth 2_ (b-e) Mien Az Nenana 7 = “ Ie Plz) —_L a es bo i a TE = de zee Py, ¢ prndabibfy of > ee ; fo eb ° otherurtbe Yobdra, puy-hvel b wilh oper as a Aight deb m the dmage. Cnverrity bevel o will offen ihe ex dark deb YP id gee rine A abled taniprlan e9 let Natalie @® Raslovalien in the brwence of Ywise only - bhocil pllexny ay wars bhe aly degcodubion pruient in an hreage ty ruts Alay) = 4 ogy tn ea) in rpabiok doraaah and Glave Flew aNn yyy dm pudgy dareoh (Ly Arcidinelic. mean fl ee ~ Yh Say be Me Sel of cordinaler in ow secheyyelare pubinage Carlow, of Aige xn, Centered ad pond (9) The anillueclic recon J} Lering campudes Ihe oareraye value of the cormpled image 9 ry) tn the extn difined by ag a Pane +t 5 atsr) 7 Caaes Car be Ambtereenkd using convolubion mark in which ahh cocfpictenls have value Vom, Lt rncethes bel Variations tn an Amaye . WD Gucvebric rntan filer - fn tvaage sesloud bing poorlsic mea len Us given by fan = TT sen] Ges, ay TE achiencs sraothing combporoble lo the wathrabe mean llr, bud lends % Lose bos image debsily in the process Ait) Haxreonic. rican ples The harmonic men fllewy cb” is given by - wise feller works url fer ball ans, The amelie het putl pe pepper metre - UW) Gntnakavmenie mtan filler - }. Cet eas Pi Fas ones oy a. Dar? Aathes wheet Bs allel the order of Ihe pller « Vor phx ts vell bailed for elininebng pall-aned-pefper retne @ Ondin-Stebirdics Fillers ~ Spb dillors eshote 2uperise 4s based on ordering ( ranking) te pixels cundained in the dongle OR erearepasseal by Yee filler () Median Fille - Le replaces the volue of o pixel by the ynedian g) the gray bevels in Ve nuighborrheod of Had pixel | F497 2 medion £ 2 (4170 Gbes, Me original velue of the piel an Ancluded tn Ue cormbubdhon of Ye medion Medien Jules wu parliculaely cffechve in xiducing both bipebr ard wnipebrr irpubre rvise - iy Max & Min Filler - Using Ye woo" hercenkil, gf rorkng Taye ee 29 tan? Cumd te find the canes, brighlet pounds iy ine ) Theo” pencenhdr giller jx athe min pla Feuy= 7H So 7 552 (umd te find te wines, EPO E Uied t r) WI) Widppind Filler - The rmichpoint ellen Computes the nid point letween the ran & m encorspaosed bi the plkn’ win Values din lhe eree t ~lLy> mi $ > fanes lates, [otauyt er Pacay ?] “7 Thy filler wert bat Jor rordomby dindribded rows bike Gawsion ot unifern noite tiv) Alpha - Luimme dl Mean filler . Sulf Wal toe debs ee a Styppese Ma. Ww dele y th jz Irwest and the adjz hughes? gray bowel vealnes e] 34,4) > the nesyblorhredd Sy tl 2 Co) deel A Jiller [ered by werapry or alpha brinmcel the pomaining TV -dk. piacls hese. ieinaining i uls is colled yuh f Ler - &. Alsat) 4 J Fl%Y) 2 Grog See ES, whee deer. me) X Vrcdul where mudliple lybe of noise prcesent, buch 0 combinebion of Ampulte ard Gaussian ratbe. Adaptive Fillers — tallos vine lehovior hanger bused on satirical chamcteristicy o} tke Arey’ inside the filler rapeon Adsplive fille produce beter perl) Wr tbek of cthoe jules bel they oe complex f Periodic Noite Redluchier by Leequengy Dermaun Fedlexng a) ci) Banelgjeat Tillers - Bendaajed! ples amove ablenuate. 0 band of frupenacs aloul Ue eugtne ch the fuer Uronsforr «deck Beunberjeed jllen Us eqprared es - Va plu £ Dy = wv Houy) = oO PD- Wedluwe dy * w \ y ply > pt we te euzyn of ee of tbe lon, where Dl4¥) iy dhe distance pura centered fcducrg) sooclangle Wis Uae tniddh in its godiol curler and Yo Bulexwoelh Banaraject jller of doe nn ger 9 - HOW) 7 Ft pa aa Guwrsion Bondreject Her 10 prer by - . “+ eee l- @€ Dewy) Ww H (uv) = (ii) Bandpass Fillers - UU performs the opposile operation a bondseject pller - YH, as the baanser purclion of hardaeyec! filler, then Lamspor purbion of bemdpers filer ay - Hy Cuywe In He luv) ip Notch Flkxs— A teh filler sujechs (or parses) predefined neighborhood, abouk a center paws abel Jeeduenctes w feeduareg. Nol fillers must ofperr 4” Ayparadhzed ough The beans for puackion o) an idea wich sojed filler of aiadiy De, widh antes al Clr) ond, ly rymmneby | al (ely, we), Hyg) 2 : @ a BBN, fee TEI 1 otherwise Ps | whre D, (wv? = [e one -iig)*d! Cv Me wt] Vo and Dy (uv) = [ Cuom 4 ly) b CV- My tM) 4 tle Tu tenter of the fofucney weclunyle a shifted bo Uke pomné (Mz, Mle) The beans fonction of & Bublensolh notch ruject pelle oh gid n th giver ly Hou = a It f D” 4” | Dd cuv) eae A Goursian ywdch supect fille hay Ve few TT Due) Pace) ] HLwv) = J- 2 Fr Tere User fillers become highpass 7 Noh pads Tedder - Hp C6) = rou, (4) Whew H,,,, 18 Leatirfor. funclico for noleh xeject le noe Yirimur Mew 5 i carr Surane Lvere (Wéener ) tellercing Lion forctan ned Hodis bial dendeantis Here we Comuider esbimele epee Ve of reise Anebude Ando onage The olyecbwe of Wdenen filer he pnt om of Phe uncatitspleel wnage Tech Ihab nan bor” vatasere, in gre UY then ids mriminazed . The overt cg a-ive ecpeeled velue of Me eonguned unesronel e@ thee ELD 6 Me Jed 5 avd and jnege ° pew anumed Uh) the nthe uk ene ct the ere Tes geo min overt Jordin myer in fpebong danain os = hk mn- al the Hows)” e ate a Glu, vd F ly) = HEA) ews!” + EN uw, 11 Se www) | of the’ deers anride ow Mwchet who Te filler, whieh ; as olled “iniron eee pfyare cvrre flex “Sanot pune ever ra 2”. Wow HCH Yd = Degradation porebeon yx (yu) > Crm conjupole of WOU) jaca! 2 px cyy) HCY) $ wore | can] ower pele of the nnise » power spocdoom a the undespnded 37 Se (uy) = |ecum) > v2 bransjem of the degree ded amg GY Taverne Fillercing This w the dimplud Yule works 40 th, prove of dhpreclabion entimale | F (u,v binly _ Plow. Slut) | —@ “yy? _] Whee G04, 0) th diyrtaded sage and Hltv) is dee daprodeben forclion * Gluvy = Wlay) © Fdyy) tN Ca¥) —@© Se fuses O ; Fiwvy= Feuvy 4 NEw) | @) Hwy) Jorn Hes ux comple 0” of we brartjon of the crignal Amege % Note thet eur af we know the diytadalion ponclicn ku), we Gnnot recover te vende ypeocded Areage Fey (imeee Fourier beanrfewrn of FWD) fecaune NL) 45 ol frown - x Tf the deyzadebion foclion har ger oe ppmall valuer, due the reebo A Wha fra cue) Cold easily dereinade F LUV) Tree flova ls powlive be reese -

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