Example 1
By [HanZhuang2009], for any dilation factor d, intpolating constant r, and hermite order h. Let L=r*(h+1).
Then for any support constant K, there exists a unique mask supported on [-N0, d*K-N0-1] satisfies sum rules of order L*K.
The following example is for d=r=2; h=1; Then L=4. Set K=2 and N0=1. the mask is support on [-1,2] and satisfies sum rules of order L*K=8;
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