California ASRT Supervisor and Operator (S&O) Practice Exam

Geometric blur does not have a direct impact on the brightness and contrast of a digital image. Brightness refers to the overall lightness or darkness of the image, while contrast describes the difference in luminance or color that makes objects distinguishable. Geometric blur primarily affects the sharpness and clarity of the image rather than its brightness or contrast levels.

In contrast, factors such as excessive scatter, grid cutoff, and incorrect menu selection can significantly influence the perceived brightness and contrast in an image. Excessive scatter can reduce image contrast by spreading the light, leading to a hazy appearance. Grid cutoff occurs when part of the image is lost due to the grid being misaligned, which can alter the overall brightness and contrast within that region. Meanwhile, incorrect menu selections in the imaging software might inadvertently apply filters or adjustments that change the brightness and contrast of an image.