UPSAMPLE

Name

upsample

Purpose (one Line Only)

Upsample an image given a dithered set of undersampled data

Description

Calling Sequence

upsample,cube,xoff,yoff,type,image

Inputs

cube - 3-D array of undersampled images [N,M,F] where the images are
all NxM and there are F images. These images should already
have any mean background removed.
xoff - X offset of each image. This probably works best when the offsets
are referred to a mean of zero for all offsets but this doesn't
have to be strictly true
yoff - Y offset of each image.
type - Type of upsampling:
0 = sqrt(2) upsampling, two dithers required, output image will
end up rotated by 45 degrees (CW) from the input images.
1 = 2x2 upsampling, four dithers required
2 = 3x3 upsampling, nine dithers required
You can provide more dithers than the minimum.

Optional Input Parameters

Keyword Input Parameters

Outputs

image - Output image up-sampled by the factor implied by type, always
returned as a float.

Keyword Output Parameters

Common Blocks

Side Effects

Restrictions

Procedure

Modification History

2016/09/13, Written by Marc W. Buie, Southwest Research Institute
2017/01/13, MWB, seems to be working now (still lots of debugging output)