coef_img: coefficient image
In riverKangg/NuclearNormClassifier: Nuclear Norm Classifier

Description Usage Arguments Value Author(s) References Examples

View source: R/admm_nmr.R View source: R/fast_admm_nmr.R

This function performs linear combination of train images.

1	coef_img(A, x)

`A`	"A" is a train data set in the form of a three-dimensional array. This data set contains several face images used for algorithm learning.
`x`	"x" is a coefficient vector for the train images.

A_x

"A_x" is a result obtained by correlation coefficient x with A, a test image data set.

Jisun Kang

https://ieeexplore.ieee.org/document/7420697

function (A, x)
{
    p <- dim(A)[1]
    q <- dim(A)[2]
    n <- dim(A)[3]
    A_x <- matrix(rep(0, p * q), dim = c(p, q))
    for (i in 1:n) {
        A_x <- A_x + x[i] * A[, , i]
    }
    return(A_x)
  }