A device for obtaining images, said device comprising: an illumination subsystem operative for projecting an illumination pattern; an imaging subsystem comprising an image sensor array and an imaging assembly operative for focusing an image onto said image sensor array; a housing incorporating said illumination subsystem and said imaging subsystem; wherein said device is adapted to acquire a first plurality of images exposed during illuminated portions of said illumination pattern based on a first control parameter in which said first control parameter for a subsequent image of said first plurality of images is adjusted based on a prior image of said first plurality of images, and adapted to acquire a second plurality of images during unilluminated portions of said illumination pattern based on a second control parameter in which said second control parameter for a subsequent image of said second plurality of images is adjusted based on a prior image of said second plurality of images, adjustment of said first control parameter being determined differently compared to adjustment of said second control parameter; and wherein acquisition of said first plurality of images being interspersed with and obtained concurrently with acquisition of said second plurality of images, and wherein adjustment of said first control parameter being separate from adjustment of said second control parameter; wherein said device is operable to attempt to decode a decodable indicia on a substrate using at least one of said first plurality of images, and operable to attempt to decode a decodable indicia disposed on a backlit display using at least one of said second plurality of images. an illumination subsystem operative for projecting an illumination pattern; an imaging subsystem comprising an image sensor array and an imaging assembly operative for focusing an image onto said image sensor array; a housing incorporating said illumination subsystem and said imaging subsystem; wherein said device is adapted to acquire a first plurality of images exposed during illuminated portions of said illumination pattern based on a first control parameter in which said first control parameter for a subsequent image of said first plurality of images is adjusted based on a prior image of said first plurality of images, and adapted to acquire a second plurality of images during unilluminated portions of said illumination pattern based on a second control parameter in which said second control parameter for a subsequent image of said second plurality of images is adjusted based on a prior image of said second plurality of images, adjustment of said first control parameter being determined differently compared to adjustment of said second control parameter; and wherein acquisition of said first plurality of images being interspersed with and obtained concurrently with acquisition of said second plurality of images, and wherein adjustment of said first control parameter being separate from adjustment of said second control parameter; wherein said device is operable to attempt to decode a decodable indicia on a substrate using at least one of said first plurality of images, and operable to attempt to decode a decodable indicia disposed on a backlit display using at least one of said second plurality of images.