Definition of absolute colorimetric

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Photonics Dictionary

absolute colorimetric: Absolute colorimetric refers to a color management rendering intent used in color profiles and conversion processes, particularly in the context of printing and digital imaging.

Absolute colorimetric rendering intent is a method of color reproduction that aims to maintain the exact color values of the source image, including the white point. This means it attempts to reproduce colors as precisely as possible, even if the output device cannot perfectly match the source device's color gamut.

Characteristics:

Exact color matching: It aims to match colors exactly as they are, without any adjustment for different white points or lighting conditions between devices.

White point preservation: This intent maintains the original white point of the source material, which can result in a shift in the overall color appearance if the white points of the source and destination devices differ.

Out-of-gamut colors: Colors that fall outside the destination device's color gamut are clipped to the nearest reproducible color. This can lead to loss of detail in highly saturated areas.

Use cases: It is typically used in scenarios where precise color matching is critical, such as proofing for print, where the aim is to simulate exactly how colors will appear on a specific substrate with specific inks.

In the printing industry, a designer might use the absolute colorimetric rendering intent to proof a print job. They would want to see precisely how the colors will appear on the final printed material, including the effect of the specific paper's color. This helps ensure that the final output matches the designer's expectations as closely as possible, given the constraints of the printing process.

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