AXISP5414–EPTZDomeNetworkCamera
VideoandAudio
Gain,measuredindecibel(dB),istheamountofamplicationappliedtotheimage.Ahighgainmayprovideabetterimageinlow
lightsituationsbutwillincreasetheamountofimagenoise.
SetGainto
•Autotosetthegainautomatically.Ifrequired,useMaxgaintolimittheappliedgain.
•Fixedtouseaxedgain.
WhenShutterandGainarebothsettoAuto,itispossibletosetthePrioritybetweenlowmotionblurandlownoisemanuallyandto
useadifferentPriorityinNormalLightandinLowLight.
Example
Consideranareawherepeopleorvehiclesmoveduringtheday,butwherethereshouldbenomovementsduringnight.Tobeableto,
forexample,recognizefacesorlicenseplates,movethenormallightpriorityslidertowardlowmotionblur.Atnighttime,motion
detectionismoreimportantthanidentication.Motionblurisacceptableandsincelowlightcancausealotofnoise,move
thelowlightpriorityslidertowardlownoise.
Example
Ifstoragespaceorbandwidthislimited,tryusingalowergain.Thiswillreduceimagenoiseandproducesmallerimageles.
Day/Night
TheIRcutlterpreventsinfrared(IR)lightfromreachingtheimagesensor.Inpoorlightingconditions,forexampleatnight,orwhen
usinganexternalIRlamp,settheIRcutltertoOff.Thisincreaseslightsensitivityandallowstheproductto“see”infraredlight.The
imageisshowninblackandwhitewhentheIRcutlterisoff.
IfusingautomaticExposurecontrol,settheIRcutltertoAutotoautomaticallyswitchbetweenOnandOffaccordingtothe
lightingconditions.
Overlay
Overlaysareusedtoprovideextrainformation,forexampleforforensicvideoanalysisorduringproductinstallationand
conguration.Overlaysaresuperimposedoverthevideostream.
Anoverlaytextcandisplaythecurrentdateandtime,oratextstring.Whenusingatextstring,modierscanbeusedtodisplay
informationsuchasthecurrentbitrateorthecurrentframerate.Forinformationaboutavailablemodiers,seeFileNaming&
Date/TimeFormatsintheonlinehelp.
Itisalsopossibletodisplaytextwhenanactionruleistriggered,seeUsingOverlayTextinanActionRule.
Toenableoverlays:
1.GotoVideo&Audio>VideoStreamandselecttheImagetab.
2.Toincludeanoverlayimage,selectIncludeoverlayimageatthecoordinates.Theoverlayimagemustrstbeuploadedto
theAxisproduct,seeOverlayImage.
3.Toincludedateandtime,selectIncludedateandIncludetime.
4.Toincludeatextstring,selectIncludetextandenterthetextintheeld.Modierscanbeused,seeFileNaming&
Date/TimeFormatsintheonlinehelp.
5.Denetextoverlaycharacteristicsintherelevantelds.
6.ClickSave.
Tomodifythedateandtimeformat,gotoSystemOptions>Date&Time.SeeDate&Time,onpage44.
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