public event OcrImagePreprocessingEventHandler ImageIntroduction
Public Event ImageIntroduction As OcrImagePreprocessingEventHandler
Custom OCR Pre-processing that cleans up the image, and improves visual characteristics should be applied in this event. If the source image is color, the image should remain color to be included in searchable PDF output or other "Image behind Text" formats.
See ImageSendOff for pre-processing a bi-tonal image prior to OCR.