In high-end digital photography, what is 'Bayer Pattern' or 'Bayer Filter'?
Option D is correct. A Bayer filter array places green, red, and blue color filters over single CCD/CMOS pixel sensors. It features twice as many green sensors to mimic human eye sensitivity.
What process reconstructs full RGB color images from raw Bayer pattern sensor data?
Option C is correct. Demosaicing evaluates neighboring sensor pixel values to interpolate missing red, green, and blue color channels for each pixel on a Bayer sensor array.
What is the dynamic range of an 8-bit grayscale digital image?
Option C is correct. In an 8-bit grayscale image, each pixel is represented by 8 bits, giving $2^8$ = 256 distinct brightness levels ranging from 0 (pure black) to 255 (pure white).
Which graphics metadata standard stores shooting parameters like camera model, shutter speed, aperture, ISO, and GPS location inside image files?
Option B is correct. EXIF specifies formats for images and sound tags used by digital cameras to embed metadata such as date, time, exposure settings, and location.
Which image filter smooths image details by replacing each pixel value with the weighted average of surrounding pixels using a bell-shaped Gaussian distribution?
Option A is correct. A Gaussian blur filter uses a 2D Gaussian function kernel to low-pass filter an image, removing high-frequency noise and details.