Axis XP40-Q1942 - About Overlays

XP40-Q1942Explosion-ProtectedPTNetworkCamera
Aboutvideosettings
AboutElectronicImageStabilization(EIS)
Whenmonitoringanenvironmentthatissubjecttovibrationssuchasatrainstation,orwhenthecameraismountedonapole,
imagesmayappearunsteady.Toautomaticallyimproveimagestability,selectElectronicimagestabilization(EIS)fromVideo&
Audio>CameraSettings.
Aboutexposuresettings
Conguretheexposuresettingstosuittheimagequalityrequirementsinrelationtotemperaturevariationsinthescene.
Automaticgaincontrol-Thissettingisusedtoautomaticallyadjustthegaintoanappropriaterange,theweakertheimagesignal,
thestrongerthegain.SelecttheLinearorEqualizationautomaticgaincontrolmethod.Thelatterusesahistogramequalization
method,whichadjuststhegaindynamicallybydistributingthemostfrequentintensityvalues.
Exposurezones-Thissettingsdetermineswhichpartoftheimageisusedtocalculatetheexposure.Formostsituations,theAuto
settingcanbeused.Forparticularrequirement,selectDenedandthenclickEditandselectoneofthepredenedareas.
Gain-Gainistheamountofamplicationappliedtoanimagesignal.Moregainmeansmorecontrastandmoredetailsbutalso
morenoise.Themaxgainvalueissetforallscenes,butaffectsprimarilylowcontrastscenescontrollingtheamountofallowednoise
intheimage,whichinturnalsolimitsthecontrast.
Aboutoverlays
Overlaysaresuperimposedoverthevideostream.Theyareusedtoprovideextrainformationduringrecordings,suchasatimestamp,
orduringproductinstallationandconguration.
Aboutoverlaytext
Anoverlaytextcanincludethecurrentdateandtime,oratextstring.Whenusingatextstring,so-calledmodierscanbeusedto
display,forexample,thecurrentbitrateorthecurrentframerate.
Youcanchoosebetweenthefollowingtextoverlaysizes:
Size
TextheightBackgroundheight
Small
10pixels20pixels
Medium16pixels28pixels
Large21pixels36pixels
Itisalsopossibletodisplaytextwhenanactionruleistriggered,seeHowtoincludeoverlaytextinanactionruleonpage21.
Howtoincludeoverlaytext
1.GotoVideo>VideoStreamandselecttheImagetab.
2.Toincludedateandtime,selectIncludedateandIncludetime.
3.Toincludeatextstring,selectIncludetextandenterthetextintheeld.Modierscanbeused,seeFileNaming&
Date/TimeFormatsintheonlinehelp
.
4.Selectsize,color,andplacementofthetextstring.
5.ClickSave.
Tomodifythedateandtimeformat,gotoSystemOptions>Date&Time.SeeDate&Timeonpage43.
Howtoincludeoverlaytextinanactionrule
Example
21