Generating calibration images by merging captured recalibration images with previously captured calibration images

A client device comprising:

• a processor implemented in hardware;
• an illuminated display;
• a digital storage medium;
• a digital camera positioned underneath the illuminated display, wherein a field of view of the digital camera passes through the illuminated display;
• and
• a computer-readable storage medium having stored thereon multiple instructions that, responsive to execution by the processor, cause the processor to perform acts including:
• capturing at least one recalibration image by the digital camera while the illuminated display is activated;
• receiving at least one previously captured calibration image from the digital storage medium;
• generating at least one merged calibration image by blending at least a portion of the at least one previously captured calibration image with at least a portion of the at least one recalibration image;
• capturing, while a display image is displayed on the illuminated display, an additional image;
• determining a multiplier based on an amount of a particular color in the display image;
• generating a subtraction image by multiplying pixels in the at least one merged calibration image by the multiplier;
• and
• generating an enhanced output image by subtracting the subtraction image from the additional image.

A client device comprising:

• a light sensor;
• a display;
• a digital camera mounted below the display and a field of view of the digital camera passing through the display;
• a recalibration determination module, implemented at least in part in hardware, to receive an ambient light level measurement from the light sensor and, based on the ambient light level measurement, request a recalibration image be captured;
• a calibration image merging module, implemented at least in part in hardware, to receive the recalibration image, retrieve a previously captured calibration image, and generate a merged calibration image by blending at least a portion of the previously captured calibration image with at least a portion of the recalibration image;
• and
• an enhanced image generation module, implemented at least in part in hardware, to capture an additional image while a display image is displayed on the display, determine a multiplier based on an amount of a particular color in the display image, generate a subtraction image by multiplying pixels in the merged calibration image by the multiplier, and generate an enhanced output image by subtracting the subtraction image from the additional image.