DC - Decimate image/volume

PURPOSE

Decimate 2-D or 3-D real image.

SEE ALSO

DC S	[Decimate image - Sum neighbouring pixels]
IP	[Interpolate - Bilinear]

USAGE

.OPERATION: DC

.INPUT FILE: VOL001
[Enter name of input file.]

.OUTPUT FILE: VOL002
[Enter name of output file.]

If the input file is an image, SPIDER asks:

.DECIMATION FACTORS X, Y: 3, 2
[Enter decimation factors for NSAM and NROW dimensions.]

If the input file is a 3D volume, SPIDER asks:

.DECIMATION FACTOR X, Y, & Z: 3, 2, 3
[Enter decimation factor for NSLICE dimension.]

NOTES

1. In the above example, the dimensions of the the output file will be reduced to NSAM/3, NROW/2, NSLICE/3. Only every third, second, and third (in respective dimentions) voxels will be retained, the remaining voxelss will be skipped.

SUBROUTINES

DECIMATE

CALLER

VTIL2