User`s guide

Interpolation Overview
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represents your input image. You want to translate this image 0.5 p ixel in
the positive horizontal direction using bicubic interpolation. The Translate
block’s bicubic interpolation algorithm is illustrated by the following steps:
1 Zero pad the input matrix and translate it by 0.5 pixel to the right.
0 0 0 1 1 2 2 3 3 0 0 0 0
0 0 0 4 4 5 5 6 6 0 0 0 0
0 0 0 7 7 8 8 9 9 0 0 0 0
0.5 pixel
Original zero-padded matrix
Translated zero-padded matrix
2 Create the output matrix by replacing each input pixel value with the
weighted average of the two translated values on either side. The result is
the following matrix where the output matrix has one more column than
the input matrix:
0 375 1 5 3 1 625
1 875 4 875 6 375 3 125
3 375 8 25 9 75 4 625
.. .
....
....
For more information, see in the Image Proces sing Toolbox documentation.
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