Applying operations to an area-of-interest

A Zone is a rectangular area-of-interest on an image.   By default the  BarcodeReader  and ImageEditor  methods operate on the whole image.

To apply operations to a rectangular region of an image set the Zone property of BarcodeReader or the Zone property of ImageEditor.  Then apply the Read or image processing methods.   Several ImageEditor methods ignore  a Zone setting. Check the ClearImageNet API Reference for specific details of each method.

Zone setting can be changed at any time.  Set Zone to an empty Rectangle to return to default (entire image) setting.   For example in C#:

reader.Zone = new Rectangle();