Use this method to specify an image for OCR.
The image will be processed and the Page property will be
updated with the results of the operation. Any existing Page
content will be lost. If an error occurs then an exception will be
thrown.
You may wish to allow ABCocr to dispose of the image as soon as
it has finished with it. This is particularly useful if operating
from multiple threads and if each bitmap is large as it will ensure
that memory use is kept reasonable.
Performing OCR can be a lengthy and time consuming operation. As
such you may wish to specify a Timeout for the operation. If the
operation takes longer than the specified time then an exception
will be thrown.
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