图像通信中一种低照度彩色图像增强算法-电子器件.PDF

绗?9鍗 绗?鏈 鐢 瀛 鍣 浠 Vol饊啺39 No.6 2016骞?2鏈 ChineseJournalofElectronDevices Dec. 2016 ALowIlluminationColorImageEnhancementAlgorithm inImageCommunication* 1 2 2* CHENGXin 锛孡IUYibo 锛孼HANGHong 锛?.SchoolofElectricalEngineering锛孹ianUniversityofPostsandTelecommunications锛孹ian710121锛孋hina锛 2.FourDepartmentofCombatTraining锛孋ollegeofNationalDefenseInformationScience锛學uhan430010锛孋hina锛 Abstract锛欼nordertosolvetheproblemoffuzzyandlowbrightnessincolorimage锛宎newcolorimageenhancement algorithmisproposed.First锛宎newtransferfunctionisintroducedtoimprovethetraditionalfiltering.Then锛宨nthe RGBcolorspace锛宼heR锛孊andGcomponentsareenhancedbyusingtheimprovedalgorithmoftheimprovedfilter鈦 ingalgorithmandtheadaptivehistogramequalizationalgorithm锛圕LAHE锛?ThecolorspaceisconvertedtoHSV锛 andthebrightnessiscompensatedbythenonlinearfunction锛宼hesaturationisdrawnouttoaintensitylevelof 1.5 timesoftheoriginal.Finally锛宼heimagecolorinformationarerestored.Experimentalresultsshowthatthenewalgo鈦 rithmcanenhancetheimagecontrast锛宎ndmaketheimagemorehighresolution. Keywords锛歭owilluminationcolorimage锛沬mageenhancement锛泂paceconversion锛沨omomorphicfiltering EEACC锛?430J doi锛?0.3969/j.issn.1005-9490.2016.06.012 鍥惧儚閫氫俊涓竴绉嶄綆鐓у害褰╄壊鍥惧儚澧炲己绠楁硶* 绋 鏂 锛屽垬涓€鍗 锛屽紶 绾? 2 2* 锛?.瑗垮畨閭數澶у鐢靛瓙宸ョ▼瀛﹂櫌锛岃タ瀹?10121锛?.鍥介槻淇℃伅瀛﹂櫌鍥涚郴浣滄垬璁粌鏁欑爺瀹わ紝姝︽眽430010锛 鎽 瑕侊細閽堝浣庣収搴﹀僵鑹插浘鍍忕粏鑺傛ā绯娿€佷寒搴︿笉楂樼瓑闂锛屾彁鍑轰竴绉嶆柊鐨勫僵鑹插浘鍍忓寮虹畻娉曘€傞鍏堝紩鍏ユ柊浼犻€掑嚱鏁版敼杩涗紶缁 鍚屾€佹护娉紝鐒跺悗锛屽湪RGB鑹插僵绌洪棿涓婏紝鍒嗗埆瀵筊銆丟銆丅鍒嗛噺鐢ㄦ敼杩涚殑鍚屾€佹护娉㈠拰瀵规瘮搴﹀彈闄愯嚜閫傚簲鐩存柟鍥惧潎琛★紙CLAHE锛夎繘琛屽 寮恒€傛帴鐫€锛岃浆鎹㈠埌HSV鑹插僵绌洪棿锛岀敤闈炵嚎鎬у嚱鏁板浜害杩涜鍏夌収琛ュ伩锛屽楗卞拰搴﹁繘琛?.5鍊嶆媺浼搞€傛渶鍚庢仮澶嶅浘鍍忚壊褰╀俊鎭€傚疄 楠岀粨鏋滆〃鏄庯紝鏂扮畻娉曞湪淇濇寔鍥惧儚缁嗚妭鐨勫悓鏃惰兘澶熷寮哄浘鍍忓姣斿害锛屼娇鍥惧儚娓呮櫚搴︽洿楂樸€ 鍏抽敭璇嶏細浣庣収搴﹀僵鑹插浘鍍忥紱鍥惧儚澧炲己锛涚┖闂磋浆鎹紱鍚屾€佹护娉P751.1 涓浘鍒嗙被鍙凤細TP7