MrzProcessingParams Object (IMrzProcessingParams Interface)
This object provides access to parameters of the machine-readable zone (MRZ) extraction.
|Application||Engine, read-only||Returns the Engine object.|
Specifies the MRZ format by the MRZ standards.
The default value is MF_Auto.
Specifies the minimum number of characters in the MRZ line. The value can be in the range of 1 to 44. The default value is 28. If the MRZ lines are shorter than the threshold set by this property, the system will not extract a valid MRZ from such an image.
The standard MRZ line length is specified in the ICAO Document 9303 and depends on the type of the document:
We recommend leaving the default value of 28 characters for standard documents. It allows recognizing the MRZs from all three types of documents and has a margin of two characters in case the image is a bit cropped.
If you need to extract the MRZ with more than two symbols lost due to crop or bad image quality, try setting this property to a lower value.
Note: With a lower MinMrzLineLength value, it is more likely that some garbage will be recognized as MRZ.