Example: Scale

• Scale (src, dst, sx, sy):

  
  

float w ? max(1.0/sx,1.0/sy);

for (int x = 0; x < xmax; x++) {

for (int y = 0; y < ymax; y++) {

float u = x / sx;

float v = y / sy;

dst(x,y) = resample_src(u,v,w);

}

}

Scale

0.5

y

x

v

u

(u,v)

(x,y)

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