Contrast for video playback too low

For playback of certain video formats, e.g. DV, WMV or Canopus HQ,  contrast is usually reduced by the codec to make it suitable for TV broadcasts (16 = black and 235 = white). This is normally undesirable for playback from PC as it produces dull images.

Solution: Correct the contrast of the video concerned via tone adjustment/tone expansion. See Editing and optimizing the video image.