| 摘要 |
In the linear filter circuit, a right shift circuit derives Ax2-n by shifting the input pixel value A rightward by n bits. A selector selects either the input pixel value A or an input pixel value B according to an n-bit blending factor alpha, conducts computation of (Axalpha_+Bxalpha), and outputs n partial products. A Wallace adder adds up a total of (n+1) partial products output from the selector and the right shift circuit, and thereby derives an output value Y=Ax(1-alpha)+Bxalpha of the linear filter circuit.
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