标签: picture

GUIDemo中用到的图片……

NEC_Picture_TestDraftEvaluationforcameraNECconfidential200609201TestCharts:MacBetheMeasurementdevice:luxmeter,colortemperaturemeterDevice:lightingequipment(capabletochangecolortemperature)MeasurementSW:Photoshop(example)TakeaphotoatMaximumpixcelsize(exapmple=SXGA)LightingColorTemperature(K)2500310042005000630073001000010#10-2#10-3#10-4#10-5#10-6#10-7#10-aLightingBright200#200-2#200-3#200-4#200-5#200-6#200-7#200-a-ness(lx)*1000#1000-2#1000-3#1000-4#1000-5#1000-6#1000-7#1000-aMeasurementReadcolorsRGBvaluesofeachcolorbyPhotoshop.R,G,BCaluculateRR=(R/255)2.2,GG=(G/255)2.2,BB=(B/255)2.2Evaluatephysicalappearance(allphotoes)ComparecolorswithoriginalonesEvaluatenoise(#10-3,#200-4)Take100samplesforeachcellan……

摘要：本应用笔记提供了一个视频数字化的概述，并产生频谱边带。文章分析到模拟视频转换成数字视频后面的过程，并解释如何视频重建需要适当的过滤技术。提供的例子，以避免或减少云纹效果和图片文物。Maxim>AppNotes>GeneralEngineeringTopicsKeywords:analog,video,reconstruction,moiré,picture,artifacts,digital,quantization,low,pass,filter,anti-alias,converter,ADC,DAC,Sep18,2008clock,sample,boxcar,Nyquist,Standard,Definition,SD,PAL,NTSC,High,HD,ATSC,MPEGAPPLICATIONNOTE4287ReconstructingAnalogVideowiththeMaximVideoFilterFamilyBy:BillLaumeisterAbstract:Thisapplicationnoteprovidesanoverviewofvideodigitization,andthespectrumandsidebandsproduced.Thearticleexaminestheprocessofconvertingdigitalvideobackintoanalogvideoandexplainshowvideoreconstructionrequiresproperfilteringtechniques.Examplesareprovidedtoavoidorminimizemoiréeffectsandpictureartifacts.IntroductionOnceanalogvideoiscapt……