Hi everyone,
I've got a set of thousands points (2D) located on a pixel image, and I
know that four points in this pixels image correspond to four points in a
real space on which I need to locate the mapping of all the thousand
source points from the pixel set.
For this I've got four reference points (corners.px), and the
corresponding four destination points (corners.r):
> corners.px
[,1] [,2]
[1,] 212.5 275.5
[2,] 562.5 275.5
[3,] 212.5 625.5
[4,] 562.5 625.5
> corners.r
[,1] [,2]
[1,] 139463 8386
[2,] 139579 -1294
[3,] 131921 8180
[4,] 132002 -1256
I think I must find a transformation matrix and apply this transformation
matrix to all the set in the pixel space, but cannot find the way to
contruct this transformation matrix.
I guess this is not a question just pertaining to R, but perhaps you can
help me with this.
Thank you and best regards!
Javier
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