QrZbarDetector

QrZbarAttribute

Feature that recognizes QR codes using the library Zbar.

Modes	Accuracy assessment	3D-translation	3D-rotation	Contour extraction	Additional info
D	-	✔	✔	✔	<Attribute_name>:info

1. Modes

1.1. Detect

Returns areas with QR codes.

1.2. Check

Not implemented

1.3. Extract

Not implemented, information is automatically extracted in Detect mode

2. XML-description

2.1. Common parameters

• Name (string, must be set) attribute unique name
• Type (string, must be "QrZbar") attribute type
• Weight (double, default: 1) attribute weight
• Probability (double, default: 0.75) not used in this attribute
• Contour (bool, default: true) returns the contour of the attribute if true

2.2. Special parameters

• Info (string, default: "") If not an empty string, then only QR codes carrying the specified information are returned.
• Lenght (double, default: -1) The side of the real code in meters, if greater than 0, then allows you to localize the code in space.

2.3. Example

<?xml version="1.0" ?>

<AttributeLib>
    
    <Attribute Name="QrcodeZbar" Type="QR_ZBAR" Lenght="0.1" Info=""/> 
    
</AttributeLib>

<SimpleObjectBase> 
    
    <SimpleObject Name="QRcodeZbar" ID="71">                   
        <Attribute Type="Detect">QrcodeZbar</Attribute>        
    </SimpleObject>
    
</SimpleObjectBase>

The axes of rotation relative to the code are defined as follows