9. The method of claim 8 , wherein determining the text region information of the multi-channel image further includes: identifying a location for each region of the at least one text region; in response to determining that two or more text regions of the at least one text region are included in two or more of the plurality of grayscale images and that the identified locations of at least two of the identified text regions overlap at least in part, selecting one text region of the at least two overlapping text regions as a selected text region, wherein a particular region confidence value of the selected text region is a highest value of the determined region confidence values; and recognizing text in the selected text region.
8. The method of claim 1 , wherein determining the text region information includes determining a region confidence value for each region of the at least one text region.