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Graphics Interchange Format  |  1999-12-27  |  3.8 KB  |  336x366  |  4-bit (4 colors)
   ocr: dx0 aX1 COO) C10- (xi,yi) (xi+1,yi) dyo (x,y) - dy1 C01 C1- (xi,yi+1) (Xi+1,y1+1) Figure 5: Calculating a pixel value using bilinear interpolation.