RETRO commands
PROGRAM NAME
vdetilt - Remove Illumination Gradient by Subtracting Best-Fit Plane (K1)
DESCRIPTION
vdetilt
computes the best-fit plane for an image, and then subtracts that plane
from the image to produce the output. This is very handy for correcting
illumination gradients in a poorly digitized image. The "remove mean" option
also removes the mean from the image, giving it zero-mean statistics.
If "remove mean" is set to yes (default), then remove mean from image.
The optional mask image must be of the same data type as the input images,
and is used to gate the operation. A non-zero mask pixel enables the output
pixel to contain the adjusted value. A zero mask pixel just transfers
the value of the corresponding pixel in the first input image to the output
pixel.
REQUIRED ARGUMENTS
- -i
-
type: infile
desc: input image
- -o
-
type: outfile
desc: resulting detilted image
OPTIONAL ARGUMENTS
- -m
-
type: infile
desc: find tilt operation masking image
default: {none}
- -p
-
type: boolean
desc: if yes, remove mean from image
default: true
EXAMPLES
SEE ALSO
vgettilt, lvgettilt, vtilt, lvtilt
RESTRICTIONS
vdetilt
will not work on BIT, transform or COMPLEX data storage types.
REFERENCES
COPYRIGHT
Copyright (C) 1993 - 1997, Khoral Research, Inc. ("KRI") All rights reserved.