8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 1/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh : 

LA AFBSFKHK\ OK LOGO\J@ OBJGH

Dfbsfkhk LA sjlj ao|yj logo|j` bhbokejb oq|o`jm ljyo LA -loyha| axyyhk| / sjlj qoq|hb `oq|yod+ Sjlj

ao|yj logo|j`, dfbsfkhk LA sjlj djwjqjk nyhdxhkqo bhyxsjdjk yhyj|j ljyo ok|hkqo|jq ao|yj lodj`odjk

lhkgjk ijkjdkj h`hbhk bj|yodq+ Qhmokggj dfbsfkhk LA jlj`jm exb`jm ljyo qhbxj ko`jo

ok|hkqo|jq ao|yj -LOS, Gfkuj`hu/+

Dfbsfkhk LA sjlj djwjqjk nyhdxhkqo loljsj| dh|odj do|j bh`jdxdjk |yjkqnfybjqo ao|yj

bhkggxkjdjk |yjkqnfybjqo Nfxyohy lxj lobhkqo -9"L/+ Mjqo` |yjkqnfybjqo oko |h|js ihyxdxyjk jkg

qjbj lhkgjk bj|yodq ao|yj+ Io`j loboqj`djk , bhyxsjdjk mjqo` |yjkqnfybjqo Nfxyohy ljyo ao|yj

bjdj 3,3 bhyxsjdjk dfbsfkhk LA ljyo ao|yj |hyqhix|+ Eodj loboqj`djk BK bhyxsjdjk ijkjd

h`hbhk bj|yodq -ok|hkqo|jq ao|yj/ ljk , bhyxsjdjk bj|yodq ao|yj jq`o -qhih`xb lo |yjkqnfybjqo/

bjdj 3,3 jlj`jm yhyj|j ljyo , lodj`odjk lhkgjk BK+ \yjkqnfybjqo Nfxyohy bhkhbsj|djk

dfbsfkhk LA lodffylokj| -3,3/ j|jx dffylokj| jkg ihyjlj lo sj`okg djkjk"j|jq+ Qjbj mj`kj dh|odj

do|j bh`jdxdjk |yjkqnfybjqo Nfxyohy sjlj oqjyj| qj|x lobhkqo -:"L/ bjdj oqjyj| LA,eodj jlj, jdjk

lo|hbsj|djk sjlj dffylokj| sj`okg doyo -3,3/+ Lhkgjk lhbodojk xk|xd shkgf`jmjk ao|yj do|j ioqj

`jkgqxkg bhbihyodjk shy`jdxjk sjlj ko`jo LA |hyqhix| djyhkj |h`jm bhkgh|jmxo `fdjqokj+ Kjbxk

lj`jb BJ\@JI |oljd lodhkj` dffylokj| -3,3/ qhmokggj dffylokj| |hyqhix| loxijm bhkejlo -:,:/+

Lj`jb jy|odh` oko, do|j jdjk bh`omj| `h|jd ljk ko`jo ljyo dfbsfkhk LA sjlj qhixjm ao|yj+ @j`x ko`jo

dfbsfkhk |hyqhix| jdjk do|j ”mo`jkgdjk‟ ljk bh`omj| hnhdkj sjlj ao|yj+ Sjlj ljqjykj dfbsfkhk

la oko bhbo`odo nyhdxhkqo kf` ljk ko`jokj dfkq|jk qhmokggj dh|odj los`f| jdjk bhkgmjqo`djk gjbijy

jkg wjykjkj qhyjgjb+ Lhkgjk bhkgmo`jkgdjk dfbsfkhk la sjlj qhixjm ao|yj ihyjy|o

bhkgxyjkgo hkhygo jkg |hyqobsjk sjlj ao|yj |hyqhix|+ Hkhygo jkg lobjdqxl jlj`jm djklxkgjk

oknfybjqo sjlj ao|yj+

\yjkqnfybjqo nfxyohy 9"L loyxbxqdjk qhijgjo ihyodx|5

, 2 ,

 

Qhljkgdjk ok~hyqh j|jx |yjkqnfybjqo ij`od Nfxyohy 9"L jlj`jm5

 , 2 :

,

 

8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 2/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh 9 

\xexjk bh`jdxdjk |yjkqnfbjqo nfxyohy jlj`jm xk|xd bhkgmo|xkg ljk bhkgjkj`oqj qshd|yxb ljyo

ao|yj |hyqhix| lhkgjk dj|j `jok do|j bhkgmo|xkg ko`jo bjgko|xlhkj+ Ko`jo bjgko|xlh ljyo qhixjm

oqjyj| -|hybjqxd lolj`jbkj ao|yj/ ljsj| lomo|xkg lhkgjk yxbxq ihyodx| oko5

, 2 , $ ,& 

, bhyxsjdjk ko`jo Nfxyohy+ Qhshy|o lodh|jmxo ijmwj wj`jxsxk ko`jo ok|hkqo|jq qhijgjo bjqxdjk

xk|xd |yjkqnfybjqo Nfxyohy ihyxsj io`jkgjk kj|j -yhj`/, mjqo` |yjkqnfybjqokj jdjk ihyxsj io`jkgjk

dfbs`hdq -bhkgjklxkg ko`jo yhj` ljk objeokhy/+ Kjbxk |h|js jdjk lomjqo`djk ko`jo la jkg

bhyxsjdjk ko`jo dfkq|jk kj|j -yhj`/+

Syfgyjb bj|`ji xk|xd jy|odh` jlj`jm

a`hjy j``4 a`fqh j``4 a`a4 

(( yhjlokg objgh no`hkjbh2'Nog3><>-j/-`hkkjVfyogokj`VYGI/+|on'4 O2obyhjl-no`hkjbh/4 obqmfw-O/4 |o|`h-'fyogokj` objgh'/4 (( 

(( lfokg NN\ 9"L 

OVnn|2nn|9-O/4 

( qh| la afbsfkhk| |f 3

OVnn|-:,:,:51/234 

( ok~hyqh ljyo NN\9 qh|h`jm dfbsfkhk la lo kf` djk U 2 onn|9-OVnn|/4 

( bhkgghqhy `h|jd dfbsfkhk LA dh |hkgjm -gyj objgh/ Og2ygi9gyj-O/4 OVnn|:2nn|9-Og/4 OVnn|92-nn|qmon|-OVnn|://4 

nogxyh, bhqm-`fg-jiq-OVnn|9///4 |o|`h-'la `faj|ofk ok 1L bflh "; j| ahk|yh fn gyjsm'/4 

nogxyh, obqmfw-`fg-jiq-OVnn|9//,TR/, af`fybjs-eh|-><//, af`fyijy |o|`h-'la `faj|ofk ok 9L bflh "; j| ahk|yh fn gyjsm'/4 

nogxyh, obqmfw-xok|=-U//4 |o|`h-'ao|yj qh|h`jm dfbsfkhk LA lo kf` djk'/4 (( 

\h`jm loeh`jqdjk lo j|jq ijmwj `h|jd dfbsfkhk LA sjlj bj|yodq mjqo` NN\ ihyjlj lo dffylokj| -3,3/

j|jx -:,:/ xk|xd BJ\@JI+ Sjlj syfgyjb loj|jq, do|j bh`jdxdjk shkgghqhyjk |o|od |hyqhix| jgjy

8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 3/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh 1 

ihyjlj lo |hkgjm+ Qhshy|o lodh|jmxo ijmwj dfkqhs ljyo NN\ jlj`jm exb`jm h`hbhk bj|yodq ijod ijyoq

ljk df`fb qhihqjy 9[K, qhmokggj io`j `fdjqo dfbsfkhk LA loghqhy dh |hkgjm jdjk bhkgmjqo`djk

`fdjqo ijyx jdko -B&9/$:, -K&9/$:+

Afk|fm5

Boqj`djk sjlj syfgyjb lo j|jq do|j bhkggxkjdjk ao|yj ihyxdxyjk 8:9}8:9+ Qh|h`jm lo`jdxdjk

|yjkqnfybjqo nfxyohy jdjk lomjqo`djk dfbsfkhk la sjlj `fdjqo -:,:/+ Okgj| `fdjqo oko ihy`jdx xk|xd

BJ\@JI+ Ijmjqj shbyfgyjbjk `jok jdjk bhkgjkggjs ihyjlj sjlj |o|od -3,3/+ @j`x, do|j bh`jdxdjk

qmon|okg nn|  sjlj mjqo` NN\ qhmokggj lomjqo`djk `fdjqo dfbsfkhk la jkg ijyx bhkejlo -8:9&9/$:,

-8:9&9/$: jdko 987,987+

Io`j jklj shymj|odjk mjqo` NN\, dfbsfkhk la bhyxsjdjk sodqh` lhkgjk wjykj mo|jb jkg ihyxdxyjk

: sodqh`+ Lj`jb afk|fm syfgyjb lo j|jq, qjj bhkggxkjdjk ao|yj YGI qhijgjo bjqxdjk xk|xd NN\

qhljkgdjk xk|xd bhkjbso`djk `fdjqo dfbsfkhk la qjj bhkggxkjdjk ao|yj YGI |hyqhix| jkg

qxljm loxijm dh jyjq -`h~h`/ jix"jix |hy`hiom ljmx`x+ Mj` oko bhkejlo shk|okg djyhkj qjj okgok

bhkggxkjdjk `fgjyo|boq xk|xd bhkjbso`djk mjqo` NN\ kj+ Bhkgjsj `fgjyo|boq6 Jgjy |jbsjd

~jyojqo wjykj sjlj qshd|yxb nyhdxhkqo ao|yjkj+ Eodj |oljd lhbodojk, bjdj jdjk lomjqo`djk lfbokjqo

wjykj qh|h`jm lo NN\ qhshy|o boqj`kj lfbokjk ioyx ljk `jok"`jok+ Lfbokjk jkg lobjdqxl jlj`jm

qhf`jm"f`jm mjqo` NN\ bhkgmjqo`djk wjykj jkg lj|jy j|jx : ehkoq wjykj qjej+

8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 4/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh < 

Shymj|odjk mjqo` hdqhdxqo ihyodx| oko+

8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 5/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh 8 

8/3/2019 dc Component in Digital Image

http://slidepdf.com/reader/full/dc-component-in-digital-image 6/6

TLOGO\J@ OBJGH SYFAHQQOKGR  Ejkxjy :3, 93:9

Tejkq+mhklyCgbjo`+afbtHH.O\ fn XGB, OklfkhqojrR Sjgh > 

Ihyljqjydjk mjqo` lo j|jq, jklj ioqj bh`omj| shyihljjk jk|jyj ao|yj jq`o lhkgjk ao|yj mjqo`

shkgf`jmjk+ Ao|yj qh|h`jm shkgf`jmjk bhkejlo `hiom gh`js, djyhkj hkhygo j|jx oknfybjqokj |h`jm

ihydxyjkg+

Qhbfgj jy|odh` oko ioqj bhbihyodjk jklj qhlodo| ijk|xjk lj`jb bhkghkj` ljk bhbjmjbo jy|o

dfbsfkhk la jkg |hyljsj| sjlj ao|yj+ Shy`x lookgj| ijmwj shkgf`jmjk ao|yj bhyxsjdjk js`odjqo

ljyo shkgf`jmjk oqjyj| djyhkj lj`jb obs`hbhk|jqokj qh`j`x bhkggxkjdjk |hdkod"|hdkod

shkgf`jmjk oqjyj| qhmokggj qjkgj| wjejy eodj |hyljsj| oq|o`jm dfbsfkhk la sjlj ao|yj+

C |mjkdq

Qfxyahq5

Logo|j` Objgh Syfahqqokg 1yl

hl+ Yjnjh` A+ Gfkuj`hu+, Yoamjyl H+ Wfflq+ Shjyqfk Syhk|oah Mj``+