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The Overlay image API makes it possible for applications to upload and manage images used for image overlays and configure the default image used in stream profiles.

list all overlays created by the add CGIs and display both their IDs and other properties. If specified, properties for all overlays can be listed for a given camera or, if further specified, for a specific camera layer. The IDs may change for each overlay after a reboot. It is therefore recommended to check the current overlay ID with list before it is updated or removed.

The following table lists error codes that can be returned from this method. General errors are listed under Error handling.

zoom_visible is optional. If present, it will indicate whether the position polygon is visible due to the zoomlowlimit setting.

addText is used to create new text overlays. When creating an overlay using the CGI you may also specify properties at the same time.

Modifiers can be used to format file names, folders for uploaded images, notification messages, text in image overlays and similar. A modifier always starts with a % or # character, followed by another character.

It is possible to use modifiers starting with % in this dynamic text. Modifiers starting with # can however not be used.

all_position is optional. If present, it will contain the values found in position, as well as any helper corners added by the service.

The shape of a privacy mask is defined by a list of corner coordinates that either forms a rectangle or a polygon. Which form that is supported is described by a property parameter.

addImage is used to create new image overlays. When creating an overlay using the CGI you may also specify properties at the same time.

All existing properties and values of the current text and image overlays from param.cgi will be supported with only changes as follows:

One new property, textOLColor is added for text overlays, possible values are "black", "white", "red", "transparent" and semiTransparent".

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The implementation uses the same resources as param.cgi. It is possible to use dynamicoverlay.cgi to change overlays created with param.cgi and vice versa. However, using both dynamicoverlay.cgi and param.cgi for overlay handling may lead to unexpected behavior.

Add a privacy mask named mask1 centered around 20% of the image width and 20% of the image height of the picture. Width and height are set in percent of the image size.

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Use this example to add text overlays with transparent backgrounds, in this case one at the top left corner of the video that shows timestamps and another at the right bottom corner that shows the address and location of the camera.

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The following table lists error codes that can be returned from this method. General errors are listed in Error handling.

Please note that pixel coordinates for a corner that is outside the current camera view will have values that are negative or larger than the image´s resolution.

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An overlay image is a static image superimposed over the video image. An overlay can for example be used to provide extra information, for example a logotype.

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Pixel coordinates for a corner that is outside the current camera view will have values that are negative or larger than the image´s resolution.

By displaying Fire Alarm Call Point Symbol Signs you demonstrate your commitment to fire safety and the well-being of your occupants. These signs help to ...

The following table lists error codes that can be returned form this method. General errors are listed in Error handling.

a. Success respons example. The response gives a list of overlays with all corresponding properties. Note that scale-to-resolution overlays are only listed as a single directory as described in Add image overlays for the add image overlay usecase. If the overlay is scaled to the resolution, then the scalable property should be set to true.

The Body-Worn Camera Policy & Implementation Program has closed for FY 2024. This grant is an annual appropriation and we anticipate it to open again in Spring 2025.

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setImage is used to update parameters for a certain image overlay. The user may specify more than one parameter at one time, however optional parameters that are not supplied will not be changed.

Dynamic overlay is used to configure different sorts of overlays in the Axis cameras and improves on the previously used param.cgi-based API by also being able to:

The following table lists general error that can occur for any CGI method. Errors that are specific for a method are listed under the API description for that method.

Add a privacy mask named mask1 to the center of the image. The width and height of the mask are set in percent of the image size.

getOverlayCapabilities returns the number of total overlay slots, the number of slots occupied per text overlay and the number of slots occupied per image overlay.

Are you a law enforcement agency looking for federal opportunities to help with your state or local public safety initiatives? Take a look at the grants below to find what best fits your needs.

Position array can contain up to Properties.PrivacyMask.MaxNbrOfCorners x/y pairs. If the privacy mask is not visible in the current camera position, an empty position array will be returned.

The Body-Worn Camera Policy & Implementation Program to Support Law Enforcement Agencies, is a great opportunity for Axis customers to harden and enhance their security apparatus. Namely, state and local law enforcement seeking funds for more body worn cameras.

The following table lists error codes that can be returned from this method. General errors are listed in Error handling.

State/Province AlabamaAlaskaAlbertaArizonaArkansasBritish ColumbiaCaliforniaColoradoConnecticutDelawareDistrict Of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineManitobaMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorth CarolinaNorth DakotaNorthwest TerritoriesNova ScotiaNunavutOhioOklahomaOntarioOregonPennsylvaniaPrince Edward IslandQuebecRhode IslandSaskatchewanSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingYukon

The following table lists error codes that can be returned from this method. General errors are listed in Error handling.

Overlay modifiers are markup strings that when present in overlay text strings are expanded according to their corresponding function.

The Overlay API is used to access overlay functionality such as privacy masks, text overlay and image overlay. The API is divided into:

Please note that this method will disable all masks. If you wish to disable individual privacy masks you should use param.cgi.

Overlay IDs may change after a reboot. This is because the overlay system always uses the lowest available number, starting from 1.

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validateImageHeader will check if the image described by the parameters are supported, is of an acceptable file-size and that there are enough memory on the device. In cases where there are an invalid parameter, an error response is sent and the status code is set to reflect what the problem might be.

a) Successful response example. The response list all available images. For each image a path identifying the image and a flag indicating the scaleWithResolution status is provided.

setText is used to update parameters for a certain text overlay. The user may specify more than one parameter at any time. Optional parameters that are not supplied will not be charged.

The Dynamic overlay API gives applications and users the ability to both get and set overlay configurations in the Axis cameras. Each overlay in the camera is identified by an ID which is returned upon creation. An overlay can be either text, image or special overlays that are provided by other applications, such as the Privacy mask API. It is also possible to remove overlays created by the API. The special overlays can not be configured from this API.

An overlay can contain several bitmap images to be adaptable to different resolutions. By calling the list command, the user receives a list showing all of the available pictures.

The text overlay is a text field that can be included in the top or bottom of the video image from an Axis product. The functionality can be used for showing static text, pan, tilt and zoom coordinates, preset positions, bit rate, etc. In addition to that it is also allowed to insert dynamic text, for example from an application. The dynamic text is contained in the RAM memory only and is removed on boot.

The API consists of a CGI enabling a user to control the underlaying dynamic overlays. There is one CGI request that implements a number of methods and to which the responses are in the JSON format.

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Position array may contain up to Properties.PrivacyMask.MaxNbrOfCorners x/y pairs. If the privacy mask is not visible in the current camera position, an empty position array will be returned.

Dynamic text overlay can be inserted in the text overlay. Since dynamic text is saved in the RAM memory only is removed on boot.

Disables all privacy masks. This is useful during an emergency when you want to make sure that nothing vital gets hidden behind a mask.

This API will no longer receive updates. For a newer version on how to upload and manage images used for image overlays, see Overlay image API.

Axis has partnered with EMD to help you review and secure grant funding. For more information on the partnership with EMD, fill out the form and we can chat through the program.

The following table lists error codes that can be returned from this method. General errors are listed in Error handling.

Privacy masking is a feature that makes it possible to mask out, i.e. cover areas in the picture that should not be visible to the viewers, such as the face of a person, logotypes and license plates. The masks will adapt their position and size when the cameras pan/tilt/zoom position changes to make sure that areas that have been masked remain that way.

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The Dynamic overlay API replaces the previously used Image overlay and Text overlay API that were both using the param.cgi parameter.

By calling the list command a second time, the user receives information on all of the overlays, including the newly created overlay. In the description of the overlay is a variable called scalable that let the user know if the overlay is scale-to-resolution or not. Scale-to-resolution means that the image overlay re-scale based on the resolution of the video stream.

This program provides state and local governments with critical funding to help reduce existing gaps in services that enhance violent crime prevention and supports a range of programs, including law enforcement, crime laboratories and forensics, prosecution, public defense, courts, corrections and community corrections, reentry, behavioral health, justice system-involved youth, and crime victim and witness initiatives. Grant funding can be used to provide state-of-the-art technology for law enforcement initiatives.

Chat with a grant expert to get more information on law enforcement grants. Fill out the form and we will be in touch shortly.

There currently exist two ways to create privacy masks. One is by using privacymask.cgi and the other by using param.cgi. Some functions, such as color and mosaic scale, can only be set using param.cgi, which means that some products will be using both.

Use image-%F-%H-%M-%S.jpg so timestamp uploaded video snapshots with the date, hour, minute and second the snapshot was taken.

Country United StatesCanadaAfghanistanAlbaniaAlgeriaAmerican SamoaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBosnia and HerzegovinaBotswanaBrazilBritish Indian Ocean TerritoryVirgin Islands, BritishBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCook IslandsCosta RicaCroatiaCubaCuraçaoCyprusCzech RepublicCôte d’IvoireCongo, the Democratic Republic of theDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLao People's Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, the former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesia, Federated States ofMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandKorea, Democratic People's Republic ofNorthern Mariana IslandsNorwayOmanPakistanPalauPalestinian Territory, OccupiedPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalPuerto RicoQatarRomaniaRussian FederationRwandaReunionSaint BarthélemySaint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaKorea, Republic ofSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwan (Chinese Taipei)TajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluVirgin Islands, U.S.UgandaUkraineUnited Arab EmiratesUnited KingdomUnited States Minor Outlying IslandsUruguayUzbekistanVanuatuHoly See (Vatican City State)Venezuela, Bolivarian Republic ofViet NamWallis and FutunaWestern SaharaYemenZambiaZimbabweAlands IslandsBonaire, Sint Eustatius and SabaBouvet IslandBrunei DarussalamCanary IslandsClipperton IslandHeard Island and McDonald IslandsSaint Martin (French part)Sint Maarten (Dutch part)South Georgia and the South Sandwich Islands

For action=upload the POST method must be used; the file content is provided in the HTTP body. The image file should be uploaded using Multipart/Form-Data as defined in RFC 1867.