Filter an image using a Laws texture filter.
laws_int4 applies one or more texture transformations to an image, analogously to laws_byte. The parameter Shift is unnecessary for this filter. The resulting image is of type int4.
Image (input_object) |
image(-array) -> object : byte |
Images to which the texture transformation is to be applied. |
ImageTexture (output_object) |
image(-array) -> object : int4 |
Texture images. |
FilterTypes (input_control) |
string(-array) -> string |
Desired filters (name or number). | |
Default value: 'el' | |
List of values: 'll', 'le', 'ls', 'lr', 'lw', 'lo', 'el', 'ee', 'es', 'er', 'ew', 'eo', 'sl', 'se', 'ss', 'sr', 'sw', 'so', 'rl', 're', 'rs', 'rr', 'rw', 'ro', 'wl', 'we', 'ws', 'wr', 'ww', 'wo', 'ol', 'oe', 'os', 'or', 'ow', 'oo' |
FilterSize (input_control) |
integer -> integer |
Size of the filter kernel. | |
Default value: 5 | |
List of values: 3, 5, 7 |
laws_int4 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.
mean__, scale__, convert_image_type__, threshold__
laws_byte, laws_int2, convol__
Laws, K.I. "Textured image segmentation"; PH.D. dissertation, Dept. of Engineering, Univ. Southern California, 1980