Digital patterns with color bars insight overview

Article
07/25/2024

Important

The deadline for migrating Azure Video Indexer content due to the Azure Media Services retirement has passed. See the retirement guide for more information.

Post-production: digital patterns

Digital patterns detection detects color bars used during filming. Digital patterns is part of the post-production insights that you can select in the web portal advanced settings when you upload and index the file.

Digital patterns use cases

Digital patterns detection is most commonly used for color correction during post-production editing of visual media.

View the insight JSON with the web portal

Once you have uploaded and indexed a video, insights are available in JSON format for download using the web portal.

Select the Library tab.
Select media you want to work with.
Select Download and the Insights (JSON). The JSON file opens in a new browser tab.
Look for the key pair described in the example response.

Use the API

Use the Get Video Index request. We recommend passing &includeSummarizedInsights=false.
Look for the key pair described in the example response.

Example responses

You can use digital patterns detection for detecting color bars and test cards.

  "framePatterns": [
        {
        "id": 1,
        "patternType": "ColorBars",
        "name": "SMPTE color bars",
        "displayName": "null",
        "thumbnailId": "47979a6b-63bc-44bb-b917-0600f78ec9ed",
        "instances": [
                        {
                            "confidence": 0.512,
                            "adjustedStart": "0:00:04.906261",
                            "adjustedEnd": "0:00:05.321406",
                            "start": "0:00:04.906261",
                            "end": "0:00:05.321406"
                        }
                    ]
                },

Name	Description
`id`	The digital pattern ID.
`patternType`	The following types are supported: ColorBars, TestCards.
`confidence`	The confidence level for color bar accuracy.
`name`	The name of the element. For example, "SMPTE color bars".
`displayName`	The friendly/display name.
`thumbnailId`	The ID of the thumbnail.
`instances`	A list of time ranges where this element appeared.

Components

No components defined.

Transparency notes

Important

It is important to read the transparency note overview for all VI features. Each insight also has transparency notes of its own:

There can be a mismatch if the input video is of low quality (for example – old Analog recordings).
The digital patterns will be identified over the 10 min of the beginning and 10 min of the ending part of the video.

Sample code

See all samples for VI

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