Question is similar to http://forum.ocrsdk.com/questions/1498/fr10-engine-how-to-only-recognize-specified-region-of-the-image
But in this case i want to use batch recognition. Currently i'm using something like:
var batchProcessor = Engine.CreateBatchProcessor();
var imageSource = new ImageSourceCallback(imageFiles);
batchProcessor.Start(imageSource, null, CreatePageParams(), null);