Graphical user interface based control of imaging parameters including scene illumination parameters

A system, comprising:

• a display;
• an optical sensor system operable to generate optical data in response to light received from a field of view;
• a light source operable to produce output light with a variable brightness level and to project the output light toward the field of view;
• and
• a processing system operable to:
• process at least a portion of the optical data into image data presentable on the display,
• generate on the display a brightness control interface operable to receive user input specifying a brightness level, and
• produce an illumination control signal in response to user input specifying the brightness level to the brightness control interface, the illumination control signal configuring the light source to produce the output light with a brightness level corresponding to the brightness level specified to the brightness control interface, wherein:
• the optical sensor system comprises an image sensor and an ambient light sensor, the image sensor being operable to generate image optical data corresponding to images of the field of view, the processing system being operable to process the image optical data into the image data, and the ambient light sensor being operable to produce a measure of brightness of light received from the field of view, and
• the processing system is operable to drive the light source with a pulse width modulation (PWM) drive signal having a duty cycle selected based on a comparison of the brightness measure with one or more brightness thresholds.

A method, comprising:

• generating optical data in response to light received from a field of view;
• producing output light;
• projecting the output light toward the field of view;
• processing at least a portion of the optical data into image data presentable on a display;
• generating on the display a brightness control interface operable to receive user input specifying one brightness amount from among a plurality of at least three different brightness amounts;
• and
• producing an illumination control signal in response to user input specifying the one brightness amount to the brightness control interface, the illumination control signal configuring the output light to be produced with the brightness level corresponding to the brightness amount specified to the brightness control interface.