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.   Example.

SEE ALSO

WI	[Window image/volume]

USAGE

.OPERATION: WI B

.INPUT FILE: PIC001
[Enter the name of the imag/volume file that is to be windowed.]

.OUTPUT FILE: WIN001
[Enter the name of the file where the window is to be kept.]

.DIMENSIONS (NX, NY, NZ): 64,64
[Enter the size of the window.]

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

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

[Here file: WIN001 will contain a window of PIC001 of size 64x64 positioned in the upper left corner of PIC001.]

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.

SUBROUTINES

WINDOW

CALLER

UTIL2