Editing xyzcnv - FilterMeisterWiki

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= xyzcnv =
== Syntax ==
:{{int xyzcnv(int x, int y,  int z, int m11, int m12, int m13, int m21, int m22, int m23, int m31, int m32, int m33,int d)}}
== Arguments ==
:'''x, y, z'''
::x, y and z coordinates of the image 
:'''m11 - m33'''
::Weights of the 3x3 pixel matix
:'''d'''
::Division value which usually should be m11+m12+m13+m21+m22+m23+m31+m32+m33. If you set d to zero this sum will be used automatically.
== Return ==
:Returns the convoluted value from the 3x3 matrix at the coordinates (x,y,z)
== Description ==
:Calculates a 3x3 convolution kernal. This is a substitute for the cnv() function which can't be used in the ForEveryTile handler. Currently works only with 8-bit images.
== Example ==
<code>
%ffp

//Produces a Blur effect
ForEveryTile:
{
	int calc;

for (y=y_start; y<y_end; y++){
		updateProgress(y,y_end);
	for (x=x_start; x<x_end; x++){
	for (z=0; z<Z; z++){

calc = xyzcnv (x,y,z, 4,4,4, 4,16,4, 4,4,4, 0);
		pset(x, y, z, calc );

}}}

return true;
}
</code>
== Also see ==
:((cnv))
== Comments ==
:Everyone can add his comments about his experiences with this function here. Tips for using it are welcome, too.

Summary of change:
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