Patent attributes
In aspects of digital image capture with a polarizer at different rotation angles, a device includes a polarizer that filters light at different polarizations and a first camera captures filtered digital images at different rotation angles of the polarizer. The device also includes a second camera to capture a full light digital image that is unfiltered. The device implements an imaging algorithm to determine a common region in each of the filtered digital images that has a variable brightness in each of the filtered digital images. The imaging algorithm can then determine pixel brightness values of the pixels in the common region of the filtered digital images, select one of the filtered digital images with a lowest pixel brightness value in the common region as an output filtered image, and combine the full light digital image with the output filtered image to generate a final image with modified image brightness.
