ANSI IT2.40-2003 摄影用美国国家标准.胶卷(只在一侧显象)的均方根(rms)粒度.测量方法
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【英文标准名称】:AmericanNationalStandardforPhotography–RootMeanSquare(rms)GranularityofFilm(ImagesonOneSideOnly)–MethodforMeasuring
【原文标准名称】:摄影用美国国家标准.胶卷(只在一侧显象)的均方根(rms)粒度.测量方法
【标准号】:ANSIIT2.40-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003-01-22
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandarddescribesamethodforthedeterminationofthegranularityofphotographicfilmsbyscanningwithasuitablemicrodensitometer.Continuous-toneblack-and-whiteandcolormaterialscoatedonatransmittingsupportmaybemeasuredbytheproceduresdescribed.Theconceptofgranularityappliestobothreflectingandtransmittingmaterials,andtechniquesthatarebasicallysimilartothosedescribedinthisdocumentcanbeusedtoevaluatereflectionmaterials.However,thisdocumentisconcernedonlywithsamplescoatedontransmittingsupports.AsnotedintheForeword,twoothertypesofgranularitymeasurementsarenottreatedinthisdocument.First,nospecificationsaregivenformeasuringfilmsthathaveemulsioncoatedonbothsidesofthesupport.Second,thisdocumentdoesnottreatthemeasurementoftheWiener(or“power”)spectrum.
【中国标准分类号】:G81
【国际标准分类号】:37_040_20
【页数】:21P.;A4
【正文语种】:英语
【原文标准名称】:摄影用美国国家标准.胶卷(只在一侧显象)的均方根(rms)粒度.测量方法
【标准号】:ANSIIT2.40-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003-01-22
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandarddescribesamethodforthedeterminationofthegranularityofphotographicfilmsbyscanningwithasuitablemicrodensitometer.Continuous-toneblack-and-whiteandcolormaterialscoatedonatransmittingsupportmaybemeasuredbytheproceduresdescribed.Theconceptofgranularityappliestobothreflectingandtransmittingmaterials,andtechniquesthatarebasicallysimilartothosedescribedinthisdocumentcanbeusedtoevaluatereflectionmaterials.However,thisdocumentisconcernedonlywithsamplescoatedontransmittingsupports.AsnotedintheForeword,twoothertypesofgranularitymeasurementsarenottreatedinthisdocument.First,nospecificationsaregivenformeasuringfilmsthathaveemulsioncoatedonbothsidesofthesupport.Second,thisdocumentdoesnottreatthemeasurementoftheWiener(or“power”)spectrum.
【中国标准分类号】:G81
【国际标准分类号】:37_040_20
【页数】:21P.;A4
【正文语种】:英语
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