deinterlace

WhatisDeinterlacing?Facts,solutions,examples.ThissiteshowsyouhowtomakebrilliantlookingDivXvideo(fromTV,DVB,DV,DVDetc)forarchivingpurposesORhowtoreducefilesizetoproducegood-lookingyetsmallDivXfootage.IfyouaredealingwithDivX,thissitefeaturesafewvideostatisticsandexperiments,thatmaybeofsomeinterestforallvideopublishersandDivXenthusiasts.Agreatpartofthissitedealswithinterlacing/deinterlacingwhichintroducessomeofthenastiestinterlacingproblemslikethese:PleasealsovisitmyothersiteseBooksDownloadebooks-download.com(withaffiliateprogram!)DebateTopicsin-my-opinion.orgTinyGoogleStartpageforyourBrowsertigoo.comMatrixReloadedExplainedmatrix-explained.comFreeDatingTips100-dating-tips.comMyFreewareFiles1-4a.comPage1of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15://://://://:Records50picturespersecond,intermixingevery2consecutivepictures(withhalftheheight)into1frame.Infact,youdon'tcallthempictures,butfields.So2fieldsaremixedinto1frame.Thismixingiscalledinterlacing.SomedefinitionsandexplanationsSothisisthetimelineofyourdigitalcamcorderordigitaltelevision1)Recordfield12)Recordfield23)Mix(=interlace)field1andfield2intooneframeandsavetheframeasframe1.4)Recordfield35)Recordfield4Page6of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15:Note:Thetimelineofyouranalogcamcorderisusuallydifferent.Analogcamcorders,VCRsetcdonotmixtherecordedpictures.Theyrecordpictureafterpictureafterpicture.Analogcamcordersuseoddandevensetsofscanlines,too,buttheydon'tintermixtheminto1frame.Onecouldusetheterm50imagespersecond(50ips),toemphasize,thatbothanaloganddigitalrecordersarecapturing50timespersecond.Thedigitalizersnowadays(e.g.HauppaugeWinTV)capture25fps=50fieldspersecond,sointheendonyourharddiskitmakesnodifferencetosay25(interlaced)digitalframespersecondor50notinterweavedanalogfieldspersecond.ButthereISadifference.Sothetimelineoftheanalogcamcorderis/was:6)Mix(=interlace)field3andfield4intooneframeandsavetheframeasframe2.1)Recordfield1(=frame1)(oddscanlines)2)Recordfield2(=frame2)(evenscanlines)4)Recordfield3(=frame3)(oddscanlines)5)Recordfield4(=frame4)(evenscanlines)Page7of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15(capturesathalftheheight,orfullheightandthenresizesdown):Capturefield2:Field2Page8of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15(=interlaced)intoFrame1(fullheight):Page9of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15://:Asyoucanclearlyseeabove,Frame1consistsofField1andField2.Thewayitlooksiscalledsawtoothtypeedgedistortion=miceteeth=combing=serrations=interlacedlines.Page11of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15:Asingleframeconsistof2capturesof2differentmomentsintime.Field1=Time1,Field2=Time2.Seethisframebelow.ThisisacapturedirectlyfromMTV'sDigitalVideoBroadcasting:Theabovesceneconsistsof2totallydifferentscenesbecausethisistheframewherethere'sachangefromscene1toscene2.Page12of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15(ThisisBritneySpear'sperformanceattheMTVVideoMusicAwards2001)Page13of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15(1frame=time1+time2)itisimpossibleto:Impossible.Youwillhavetoalteratleastoneofthosepoints.Except,whentherewasnomotion.Onacomputerscreeninterlacedrecordingsareannoyingtowatchbecausethelinesarereallydisturbing.Especiallyinsceneswherethere'smovementfromlefttoright(righttoleft)youseetheinterlacing,likeinthisexample:1)deinterlaceaframeAND2)keep25frames/secondAND3)keepthefullquality(=allinformationofapicture).Page14of65Whatisdeinterlacing?Thebestmethodtodeinterlacemovies2009-9-15://w