What defines high contrast?

What defines high contrast?

• A. Long gray-scale and many shades of gray.
• B. Short gray-scale and a few shades of gray.
• C. Uniform brightness.
• D. High dynamic range.

Answer: (B)

High contrast is about a large difference between the lightest and darkest parts of an image. This shows up when the gray-scale has only a few brightness levels, so the transitions between light and dark are sharp. A short gray-scale with just a few shades creates bold, distinct black-and-white-like regions, which gives that strong, punchy contrast. If you have many shades of gray, the transitions are gradual, and the overall contrast feels lower. Uniform brightness means no difference at all, hence no contrast. High dynamic range refers to the range of brightness a system can handle, not the amount of contrast in a single image.

High contrast is about a large difference between the lightest and darkest parts of an image. This shows up when the gray-scale has only a few brightness levels, so the transitions between light and dark are sharp. A short gray-scale with just a few shades creates bold, distinct black-and-white-like regions, which gives that strong, punchy contrast. If you have many shades of gray, the transitions are gradual, and the overall contrast feels lower. Uniform brightness means no difference at all, hence no contrast. High dynamic range refers to the range of brightness a system can handle, not the amount of contrast in a single image.