ICO-FI Windows icon

Extensions: .ico

An ICO format based on the Freeimage library.

This format supports grayscale, RGB and RGBA images.

The freeimage plugin requires a freeimage binary. If this binary is not available on the system, it can be downloaded by either

  • the command line script imageio_download_bin freeimage
  • the Python method imageio.plugins.freeimage.download()

Parameters for reading

makealpha : bool
Convert to 32-bit and create an alpha channel from the AND- mask when loading. Default False. Note that this returns wrong results if the image was already RGBA.