1. A hand held indicia reading terminal for reading of a decodable indicia, said hand held indicia reading terminal comprising: an image sensor; a lens assembly for use in focusing an image onto said image sensor; a hand held housing encapsulating said image sensor, said hand held indicia reading terminal being operative to capture a succession of frames of image data; a memory; a CPU in communication with said memory operative for processing of frames of image data stored in said memory; wherein said CPU is operative to subject a certain frame, frame=frame j of said succession of frames to frame quality evaluation processing where a result of said processing is responsive to one or more of an incidence of edges represented in said certain frame and a sharpness of edges represented in said certain frame of image data; and wherein said CPU is operative so that said CPU can be subjecting a previous frame, frame=frame j−k, k≧1 to processing for attempting to decode contemporaneously while subjecting said certain frame to said frame quality evaluation processing.