Colour profile

  • In the colour management process, a colour profile is a file containing information that accurately defines a colour space, enabling a device to reproduce the intended range of colours.
  • Industry-standard colour management uses ICC-compliant colour profiles (or similar). ICC profiles can be recognized by their .icc or .icm file extensions.
  • Colour profiles address the fact that it may not be possible to reproduce all the colours that an observer sees in an original scene or on-screen when an image is reproduced.
  • The primary function of a colour profile is to select a colour space that ensures all the colours within an image can be successfully reproduced. In other words, the range of colours output to a device, such as a printer, are adjusted to fit its colour space and ensure they are in-gamut.
  • Colour profiles can ensure that original colours are managed consistently as an image makes the transition, for example, from a camera through editing to the paper or screen on which it will be displayed.
  • Editing software such as Adobe Photoshop Lightroom Classic can be set to match the make and model of the camera, the file format, and user-defined settings. These camera-matching profiles ensure that in-camera profiles and picture styles are honoured as they are imported into the editing environment.