WI B - Window image - use specified Background

PURPOSE

Cut out a window image/volume from a specified image/volume file. Fill any borders from outside original image boundary with specified background value.

SEE ALSO

WI	[Window image]

USAGE

.OPERATION: WI B

.INPUT FILE: H_PIC001
[Enter the name of the file that is to be windowed.]

.OUTPUT FILE: H_IMG051
[Enter the name of the file where the window is to be kept.]

.ENTER DIMENSIONS (NSAM, NROW): 64,64
[Enter the size of the window.]

If the input file contains a 3D volume:

.ENTER NUMBER OF SLICES (NSLICE): 42
[The number of slices]

.TOP LEFT COORDINATES: 1,1
[Enter the upper left coordinates of PIC001 where the window volume is to start.]

If the input file contains a 3D volume:

.TOP SLICE: 4
[The slice where windowing should start]

.BACKGROUND: 1.1
[Value given to voxels of window that were outside boundaries of original image.]

[WIN001 will contain a window of H_PIC001 of size 64x64 positioned in the upper left corner of PIC001. If the input file had a 3-D format, WIN001 would contain a volume with dimensions 64x64x42, obtained by cutting the input volume at x=1, y=1 and starting at slice=4.]

NOTES

1. Remember that in SPIDER 1,1 is the origin of an image.

2. This operation handles windows that go outside of the original image correctly, now.

SUBROUTINES

WINDOW

CALLER

UTIL2