the shadows and the light colored image reproduction) in color, due to the limited sensitivity in the different channels of an image analysis device, such as a video camera with multiple colors are efficiently removed by an adjustment control of how intensive of the output signals of a channel according to the level of the signal is or not.in a limited region of the characteristic response of the camera. as long as the signal level of the channel concerned (for example, the channel band blue) is a non limited the range of sensitivity of the camera for this channel, the intensity of the output signals of the channel does not change.however, when the level of the output signal of the channel is located in a limited portion of the sensitivity range of the camera, the intensity of the output signal of this channel is effectively corrected by substituting these signals, the output signals of a channel of the cam. ly (e.g. green channel).the dynamic range that extends beyond the scope of the limited channel. as a result, the level of the image reproduced in the areas, such as shadows or parts with light intensity levels, closer to one end of the range of sensitivity of the camera, and tend to be neutral, and also provide an image of better quality.
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