Related Words

Contrast: The difference between the darkest and lightest areas in a photo. The greater the difference, the higher the contrast.

Contrast Ratio: This is a dynamic range measurement method. It measures the contrast ratio as it applies to images and text. Detailed images have a higher contrast ratio.

Contrast Transfer Function (CTF): function that describes the transfer of information from the object (i.e., the object's projection) to the contrast observed in the image for bright field electron microscopy (the usual mode . . . View Full Definition

Amplitude Contrast Ratio: For a weak phase, weak amplitude object, the ratio Qo between the contrast transferred by cos(gamma) and sin(gamma) is called amplitude contrast ratio. It is different for different atoms, a . . . View Full Definition

Contrast Values: Perceived difference between the light areas (highlights) and the dark areas (shadows) of a scene. The range of contrast levels between the highlights and the shadows is called contrast values.

Contrast Grade: Numbers (usually 1-5) and names (soft, medium, hard, extra-hard, and ultra hard) of the contrast grades of photographic papers.

Variable Contrast Paper: Is a printing paper in which the contrast can be varied depending on the color of the printing light. This can be altered by using different color filters.

High Contrast Developer: Solutions used to produce high contrast images.

Error Of Contrast: An error occurring when raters assign ratings based on comparisons between individuals being rated instead of using previously established organizational standards.

Simultaneous Contrast: Effect that adjacent color hues have upon each other.