Contrast Ratio Contrast ratio is a measure of the difference in brightness between the lightest and darkest parts of an image or display. It is typically expressed as a ratio, such as 1000:1, where the first number represents the luminance of the brightest area and the second number represents the luminance of the darkest area. In Giclée printing, contrast ratio is an important consideration for evaluating the dynamic range and visual impact of printed images, with higher contrast ratios generally indicating greater detail and depth. |