3 ms·

Fujifilm lossy compressed raw still isn't supported after many years [1]. [1] https://github.com/darktable-org/rawspeed/issues/366 https://github.com/darktable

• zahlman 2y ago
  It's really strange to me that a lossy compressed format could be called "raw". Does that just mean that it hasn't been e.g. gamma-corrected before the compression was applied? (Is it even a good idea to do lossy compression before such correction?)
  • 4ad 2y ago
    All raw means is scene-referred data. The idea that somehow raw means "raw" data from the sensor is an often repeated idea, but unfortunately is completely nonsense. Modern sensors do on-chip noise reduction, they can be programmed to give data in all kind of formats and with different processing done to it. The same sensor used in different cameras can have different ISO. The same sensor used in different cameras can produce different RAW files even at the same ISO. Not just in the sense of a different file format, in the sense of different data in the file, from the exact same sensor, but programmed differently.
    • jiggunjer 2y ago
      Source? There are lossless and lossy transformations. In many scientific contexts raw implies no lossy transformations in terms of information.
      • danudey 2y ago
        This isn't a scientific context, it's a marketing one.
    • zahlman 2y ago
      "scene-referred data", as opposed to... something consciously edited?
      • 4ad 2y ago
        No, scene-referred vs. display-referred. These are standard terms. https://www.color.org/scene-referred.xalter https://www.color.org/scene-referred.xalter https://ninedegreesbelow.com/photography/display-referred-scene-referred.html https://ninedegreesbelow.com/photography/display-referred-sc... https://ansel.photos/en/workflows/scene-referred/ https://ansel.photos/en/workflows/scene-referred/