Interpolation of Matrix in C++

Question

May I know how can I do the interpolation for a matrix in C++? Eg: I have a 3x3 matrix {0 0 0
0 1 1 0 0 1} I wish to resize it to a 10x10 matrix using bilinear interpolation.

Any tips or references about this?

score 2 · Answer 1 · edited May 23 '17 at 12:28

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What you want to do is called image resizing using bilinear interpolation. Knowing that google is your friend. I would try using a C++ library for that purpose. This question covers all C++ imaging libraries: Fastest C/C++ image resizing library Any reasonable library should satisfy your needs.

edited May 23 '17 at 12:28

Community

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answered Mar 29 '13 at 04:55

carlosdc

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score 0 · Answer 2 · answered Mar 29 '13 at 04:28

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In order to linearly interpolate between two things you need to embed (put) them in a common vector space and then "draw" the line between them.

I can't see a useful embedding of a 3x3 matrix and a 10x10 matrix in a common vector space...

answered Mar 29 '13 at 04:28

Petar Ivanov

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Interpolation of Matrix in C++

2 Answers2