1: What is the purpose of colour management?
All colour capable devices respond differently, and each device needs to correspond with each other. Colour management creates a working flow of equal precise colours, that tries to make the colours as accurate as possible.
2: What problems make colour management necessary?
Everyone sees colour differently, so trying to keep a constant colour representation is paramount. If devices ages over time the colours become ‘dull’ and less accurate to the CIE lab space. When printing, most inks and papers will not produces colours as the monitors display them. Therefore the device is produces incorrect colour creating inaccurate results.
- A colour-matching engine, also known as the colour-matching method which converts colour meanings between different colour spaces.
- A reference colour space, also known as the profile connection space (PCS), which is a device-independent, perceptually based colour space.
- A profile describes the behavior of a device, eg. "This is the reddest red that that device can output".
- A reference colour space, also known as the profile connection space (PCS), which is a device-independent, perceptually based colour space.
- A profile describes the behavior of a device, eg. "This is the reddest red that that device can output".
4: What is the difference between a colour profile and a working space?
A device profile represent a complete colour transformation from source device to target device and a working space are the colour spaces that can be manipulated while editing, such as sRGB, Adobe RGB or ProPhoto.
5: what is a “reference colour space” and how are they used? Give an example of one.
Nearly all colour management software today uses a device-independent space that will mostly contain more colours than can be shown on a computer display. They are used to describe all colours visible to the human eye based on people who aren't colour blind.
6: What is the difference between calibrating and profiling? Calibrating is where a device such as a monitor, printer or scanner is set to a repeatable operating standard with the brightness, contrast, and colour settings set to specific starting points. calibration is done by using specialized software and devices that will maintain the state of colour accuracy for days or months.
Profiling is a setting that you can create and install so your images can look more accurate on screen. you can choose from existing monitor profiles or create your own.
Profiling is a setting that you can create and install so your images can look more accurate on screen. you can choose from existing monitor profiles or create your own.
7: What is a rendering intent?
When colours are out of gamut, a rendering intent is used to match the colours as close to the original as possible. There are different types of rendering intents, such as perceptual, relative colorimetric, absolute and saturation.
8:Which rendering intents are most useful for photographers, and when would you use each of them?
Perceptual and Relative colorimetric. Perceptual tries to preserve some relationship between out of gamut colours, even if they aren't accurate. Relative maintains a near exact relationship between in gamut colours, even if this clips out of gamut colours.
