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--- jvs:fscan:manual:chapter2:convolve [2011/03/31 14:49]
127.0.0.1 external edit
+++ jvs:fscan:manual:chapter2:convolve [2023/02/23 18:43] (current)
@@ Line 1: / Line 1: @@
 **fScan Reference Manual, Chapter 2 (CmdLineOptions): convolve**
-===== Convolve -- Convolve images using kernal matrix=====
+===== Convolve -- Convolve images using image matrix kernal=====
-**usage:** -convolve flag scale kernal matrix
+**usage:** -convolve flag scale kernal offset
 =====  =====
 This smooths images or activation maps by performing a spatial convolution of each voxel. The arguments are:
@@ Line 8: / Line 8: @@
     * 1 - Convlolve each input image with a Gaussian kernal. This is the default if no FLG value is specified. The alternative to Gaussian is a simple smoothing kernal (i.e., 3x3 with all elements equal 1/9).
     * 2 - Subtract the filtered value from the original (default is to replace the filtered value for the original). This option acts as an enhancing filter. SCALE Specify the width of the Gaussian kernal (default is 1.5 voxels).
-  * KERNAL Enter the kernal explicitly from a disk file (if KERNAL is a file name) or from an array in PDIGMFILE (if KERNAL is a number; see "fscan help"). The dimensions of the kernal will be taken from the input array.
+  * SCALE - scaling factor
-  * OFFSET Specify an offset value to add to each element after the convolution.
+  * KERNAL - The kernal is the small image matrix that will be convolved with your image. It can be entered explicitly from a disk file (if KERNAL is a file name) or from an array in PDIGMFILE (if KERNAL is a number; see "fscan help"). The dimensions of the kernal will be taken from the input array.
+  * OFFSET - Specify an offset value to add to each element after the convolution.
 **See Also:**\\

Brain Imaging & Analysis Center

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