G7 ICC Profile Creation & Color Management Systems Flashcards

What is a 'device link profile' and when is it preferred over a standard ICC output profile in G7 workflows?

Answer: A profile connecting two output devices directly, preferred when converting between two CMYK print conditions to preserve black channel

A device link profile encodes a direct CMYK-to-CMYK conversion, preserving the black channel and avoiding a round-trip through PCS, making it ideal for reprinting content from one CMYK condition to another.

Which measurement condition defined by ISO 13655 is now required for ICC profile builds under M-series standards to handle OBA effects?

Answer: M1 (UV-included, D50 illuminant)

M1 measurement condition simulates D50 illuminant including UV content, providing consistent measurements of substrates with optical brightening agents for accurate ICC profiles.

In soft proofing for G7, what does 'simulate paper color' option do in Adobe Photoshop?

Answer: Adjusts the display to simulate the paper white of the chosen output profile, showing the actual appearance on press

'Simulate paper color' adjusts the monitor's white point simulation to match the paper white defined in the output ICC profile, showing how the image will truly appear on press.

What is 'black point compensation' (BPC) and when should it be used in ICC-based color conversions for G7?

Answer: It maps the darkest point of the source to the darkest point of the destination, preventing shadow clipping; use with perceptual or relative colorimetric

BPC mathematically maps the source black point to the destination black point, preventing shadow tones from being clipped when the source has deeper blacks than the destination.

Which G7-related organization maintains the GRACoL and SWOP characterization data used as ICC profile aims in North America?

Answer: IDEAlliance

IDEAlliance (now Printing United Alliance) maintains GRACoL and SWOP characterization datasets and associated G7 certification programs for North American printing.

What does 'total area coverage' (TAC) or 'total ink limit' control in an ICC output profile build?

Answer: The maximum combined CMYK ink percentage allowed on any given pixel to prevent drying and offsetting problems

TAC (Total Area Coverage) sets the maximum combined CMYK ink percentage per pixel to prevent ink-related problems like slow drying, offsetting, and show-through on press.