I want to write a dll in VC-code,the Input is a Image, after some processing, the output should be several images, they are stored in an array. (a Image to a gaussian pyramid)
But I don't konw, how to write this. I'v tried to make a example:
extern "C" _declspec (dllexport) void im2pyr(unsigned long *img,long LineWidthT,long imgWidth, long imgHeight)
{
FVLImage src;
unsigned long * pt = img;
long i,j;
for (i=0; i<imgHeight; i++)
for (j=0; j<imgWidth; j++)
{
src.WritePixel(pt[j],i,j);
pt += LineWidthT;
}
int levels = 3;
FVLPyramid dest;
dest.New (levels, src.Width (), src.Height (), src.Stride (), src.PixelFormat (), src.Pixels ());
dest.Reduce3x3 ();
for(int l=0; l<levels;l++)
{
dest.Pixels(l);
}
}
I don't know, wheather this is right or not, there are no any infomations by compiling and i got the ".dll" and the ".lib" files.
Now i want to call it with cln(call library node) in Labview, how could I set the parameters, that i can get the right results?
(the nessecary fvl.lib and fvl.h for "FVLImage" and "FVLpyramid"are in attachment).
(Or, can anyone make a little example, tell me how can i do, so that i can arrive this goal.)
Thanks
