max1__ ( Image : ImageMax : MaskHeight, MaskWidth : )
Determine the maximum gray value within a rectangle.
max1__ calculates the maximum gray value of the input
image Image within a rectangular mask of size
(MaskHeight, MaskWidth) for each image point.
The resulting image is returned in ImageMax. If the
parameters MaskHeight or MaskWidth are even,
they are changed to the next larger odd value. At the border of the
image the gray values are mirrored.
Parameters
Image (input_object)
|
image(-array) -> object : byte / direction / int4 / real
|
Image for which the maximum gray values are to
be calculated. |
ImageMax (output_object)
|
image(-array) -> object : byte / direction / int4 / real
|
Image containing the maximum gray values. |
MaskHeight (input_control)
|
extent.y -> integer
|
Height of the filter mask. |
Default value: 11 |
Suggested values: 3, 5, 7, 9, 11, 13, 15 |
Range of values: 3 <= MaskHeight <= 511 |
Minimum increment: 2
|
Recommended increment: 2
|
Restriction: odd(MaskHeight) |
MaskWidth (input_control)
|
extent.x -> integer
|
Width of the filter mask. |
Default value: 11 |
Suggested values: 3, 5, 7, 9, 11, 13, 15 |
Range of values: 3 <= MaskWidth <= 511 |
Minimum increment: 2
|
Recommended increment: 2
|
Restriction: odd(MaskWidth) |
Result
max1__ returns TRUE if all parameters are correct.
If the input is empty the behaviour can be set via
set_system(::'no_object_result',<Result>:).
If necessary, an exception is raised.
See also
grey_skeleton__
Copyright © 1996-1997 MVTec Software GmbH