Media Server 26.2
Media Server Help

# Image Description

The image description analysis task uses an AI model to generate a textual description of an image or video frame.

IMPORTANT: Image description can take a significant amount of processing time when running on a CPU. To produce a description for a single image takes several minutes using the pre-trained model `ImageDescription_LLaVA-v1.6-Mistral-7B-HF.dat`.

IMPORTANT: Image description requires a significant amount of memory. OpenText recommends that your Media Server has at least 64GB RAM for using the pre-trained model `ImageDescription_LLaVA-v1.6-Mistral-7B-HF.dat`.

Configuration Parameter | Description
--- | ---
GPUDeviceID | The device ID of the GPU to use.
Input | The image track to process.
MaxOutputTokens | Limits the length of the text produced by the AI model.
Model | The name of the model to use to generate image descriptions.
Region | A region of the image or video to restrict analysis to.
SampleInterval | The interval at which frames are selected to be analyzed.
SyncDatabase | Specifies whether to synchronize with the training database before beginning the analysis task.
Type | The analysis engine to use. Set this parameter to `ImageDescription`.

## Output Tracks

Output track | Description
--- | ---
`Data` | Contains a record, with a textual description, for each processed image or video frame.
`DataWithSource` | The same as the `Data` track, but each record also includes the source frame.

Copyright 2026 Open Text
Version 26.2 | Last updated April 2026

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Product: Knowledge Discovery Media Server 26.2

Topic Title: Image Description