Reconstruct image from a list of patches.

reconstructImageFromPatches(
  patches,
  domainImage,
  strideLength = 1,
  domainImageIsMask = FALSE
)

Arguments

patches: List or array of patches defining an image. Patches are assumed to have the same format as returned by extractImagePatches.
domainImage: Image or mask to define the geometric information of the reconstructed image. If this is a mask image, the reconstruction will only use patches in the mask.
strideLength: Defines the sequential patch overlap for maxNumberOfPatches = all. Can be a image-dimensional vector or a scalar.
domainImageIsMask: boolean specifying whether the domain image is a mask used to limit the region of reconstruction from the patches.

Value

an ANTs image.

Author

Tustison NJ

Examples


library( ANTsR )

image <- antsImageRead( getANTsRData( "r16" ) )
patchSet <- extractImagePatches( image, c( 64, 64 ), "all", c( 8, 8 ) )
imageReconstructed <-
  reconstructImageFromPatches( patchSet, image, c( 8, 8 ) )
testthat::expect_equal(as.array(image), as.array(imageReconstructed))
rm(image); gc()
#>           used  (Mb) gc trigger  (Mb) limit (Mb) max used  (Mb)
#> Ncells 4288327 229.1    6338411 338.6         NA  6338411 338.6
#> Vcells 9815701  74.9   16439144 125.5     102400 16439144 125.5
rm(patchSet); gc()
#>           used  (Mb) gc trigger  (Mb) limit (Mb) max used  (Mb)
#> Ncells 4286300 229.0    6338411 338.6         NA  6338411 338.6
#> Vcells 7254216  55.4   16439144 125.5     102400 16439144 125.5
rm(imageReconstructed); gc()
#>           used  (Mb) gc trigger  (Mb) limit (Mb) max used  (Mb)
#> Ncells 4286292 229.0    6338411 338.6         NA  6338411 338.6
#> Vcells 7254239  55.4   16439144 125.5     102400 16439144 125.5