|RI RV||[Find ridges and valleys running up/down an image]|
|PO R||[Convert image to polar representation - rays along X]|
|RO I||[Rotational average - 2D Image output]|
|RO SD||[Rotational average - single line output, doc file]|
.INPUT FILE: PIC001
[Enter name of the file which contains a rectangular polar coordinate representation with rays along the X dimension.
.OUTPUT DOC FILE: RIR_DOC
[Enter name of the doc file which will contain statistics on ridges which run up/down the image. These would correspond to circular/elliptical rings on the original power spectrum.
.SEPARATION, SUMMED LINES: 50, 2
[Enter separation or exclusion distance between consecutive ridges and number of image lines to be summed before finding maxima. The separation and summed lines inputs allow effective filtration of noisy input images.]
.MINIMUM DISTANCE FOR FIRST RIDGE, DOC FILE KEY: 150, 1
[Enter minimum distance for first ridge and key number for document file listing.]
| Register contents |
|1,||FURTHEST RIDGE Y
Y location of line with furthest first ridge. (pixels)
Corresponding angle of furthest first ridge.
|3||R1 DISTANCE X
Distance to the first ridge on line with furtherst ridge. (pixels)
|4||R2 DISTANCE X
Distance to the second ridge on line with furthest ridge ray. (pixels)
Difference between longest distance to first ridge and shortest distance. (pixels)