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edited Oct 13, 2018 at 7:35

J. M.'s missing motivation

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image-processing matrix

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edited Feb 17, 2012 at 20:30

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What is the fastest way to locate the location of an image inside a larger image?

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edited Feb 17, 2012 at 16:42

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let b =

enter image description here

let c =

enter image description here

How to do:

find[c,b]

that returns the bounding box of c in b?

Notes

Original b is not scaled, this is only the case in this post.
(Update: this may actually not be the case.) Because b contains an exact copy of c, this can be thought of as a problem of finding a submatrix in a larger matrix.

Links to original images

Update

Here are the results so far:

Final Result (using Heike's answer)

let b =

enter image description here

let c =

enter image description here

How to do:

find[c,b]

that returns the bounding box of c in b?

Notes

Original b is not scaled, this is only the case in this post.
(Update: this may actually not be the case.) Because b contains an exact copy of c, this can be thought of as a problem of finding a submatrix in a larger matrix.

Links to original images

Update

Here are the results so far:

let b =

enter image description here

let c =

enter image description here

How to do:

find[c,b]

that returns the bounding box of c in b?

Notes

Original b is not scaled, this is only the case in this post.
(Update: this may actually not be the case.) Because b contains an exact copy of c, this can be thought of as a problem of finding a submatrix in a larger matrix.

Links to original images

Update

Here are the results so far:

Final Result (using Heike's answer)

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edited Feb 17, 2012 at 14:51

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5
14

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edited Feb 17, 2012 at 14:24

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added 130 characters in body

edited Feb 17, 2012 at 14:17

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added 47 characters in body

edited Feb 17, 2012 at 14:10

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asked Feb 17, 2012 at 13:44

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