Devices and Methods Employing Dual Target Auto Exposure

An indicia reader comprising:

• an illumination subsystem for projecting an illumination pattern;
• an imaging subsystem for capturing images, the imaging subsystem comprising an image sensor;
• wherein the indicia reader is configured for:
• acquiring a first plurality of images;
• while acquiring the first plurality of images, projecting the illumination pattern based on a first control parameter;
• adjusting the first control parameter for a first subsequent image of the first plurality of images based on a first prior image of the first plurality of images;
• acquiring a second plurality of images;
• while acquiring the second plurality of images, not projecting the illumination pattern based on a second control parameter that is different from the first control parameter;
• and
• adjusting the second control parameter for a second subsequent image of the second plurality of images based on a second prior image of the second plurality of images.

A method for obtaining images comprising:

• acquiring, with an imaging subsystem, a first plurality of images based on a first control parameter;
• adjusting the first control parameter for a first subsequent image of the first plurality of images based on a first prior image of the first plurality of images;
• acquiring, with the imaging subsystem, a second plurality of images based on a second control parameter that is different from the first control parameter;
• and
• adjusting the second control parameter for a second subsequent image of the second plurality of images based on a second prior image of the second plurality of images.