Media Server 25.4
Media Server Help

# MinCharHeight

The estimated minimum height of the main characters on the number plate. This parameter is used to detect potential number plates and number plate recognition might still detect and read plates that are smaller.

Specify a value followed by the units that you want to use:

- `percent` or `%` - Percentage of the image or video height.
- `pixels` or `px` - Number of pixels.

Type: | Integer
Default: | 12 pixels
Recommended Range: | Minimum: 10 pixels
Required: | No
Configuration Section: | TaskName
Example: | `MinCharHeight=20 pixels`
See Also: | MaxCharHeight

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: MinCharHeight