光栅图形中点的表示 Address(r,y)=( MaxmIn)*(yym)+(xm)+基地址 k1+ key+x 对像素连续寻址时,如何减少计算量? Address(x士1y)=k1+k2y+(x±1)= Address(x, y)±1 Address((xy+1)=1+A2(±1)+x= Address(x, y)土2 Address(x±1y+1)=kl+k2(y±1)+(x±1) = Address(x2y)±h2±1 增量法的优点?光栅图形中点的表示 Address(x,y) = (xmax-xmin) * (y-ymin) + (x-xmin) + 基地址 = k1 + k2y + x Address(x±1,y) = k1 + k2y + (x±1) = Address(x,y) ± 1 Address(x,y±1) = k1 + k2(y ±1) + x = Address(x,y) ± k2 Address(x±1,y±1) = k1 + k2(y ±1) + (x±1) = Address(x,y)± k2 ± 1 对像素连续寻址时，如何减少计算量？ 增量法的优点？