| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital video image magnification/reduction circuit, that can enhance a definition sense of color and display a high image quality video image, because magnification/reduction is attained by maximally utilizing information of a received color difference signal. SOLUTION: A luminance magnification reduction circuit 11 magnifies/reduces a luminance signal of a received digital video signal. Color difference magnification/reduction circuits 21, 22 magnify/reduce a color difference signal in the received digital video signal. A luminance magnification reduction control circuit 25 controls the luminance magnification/reduction circuit 11 and a color difference magnification reduction control circuit 26 controls the color difference magnification/reduction circuits 21, 22 on the basis of a size magnificationαreceived from a terminal 16. When a digital video signal with the 4:2:2 format is received, the color difference magnification reduction control circuit 26 selects 2αonly for a pixel number magnification in the horizontal direction.
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