The invention discloses a
color reproduction correction circuit and
correction method, it comprises: a reverse
gamma correction section for receiving at the reception side the video
signal, which has been gamma corrected at the transmission side, and the video
signal is corrected by the reverse
gamma correction to become linear data; a correction matrix transformation section for transforming the linear data, which has been performed a reverse
gamma correction, through a correction matrix, which is formed by the product of the first
transformation matrix and the second
transformation matrix, wherein said first
transformation matrix transforms the video
signal of RGB
system to the video signal of XYZ
system at the transmission side, and said second transformation matrix transforms the video signal of XYZ
system to the video signal of RGB system at the reception side. By using the
color reproduction correction circuit of the invention, even though the
color reproduction region of the device at the transmission side is different from that of the device at the reception side, the color
reproduction can still be performed more accurately, and when the color
reproduction region of the
display device at the reception side is wider than that of the
display device at the transmission side, the color
reproduction can be performed by extending automatically the color reproduction region.