imPreprocess bug fix

src/MATLAB/+RSF/imPreProcess.m

@@ -23,11 +23,17 @@ else
     bTubes = false;
 end
 
+if any(radii<0)
+    radii = abs(radii);
+    bBright = true;
+else
+    bBright = false;
+end
 sigma = AX .* radii;
 cudaTarget = getCudaTarget();
 imf = HIP.LoG(im,sigma,cudaTarget);
 
-if any(radii<0)
+if bBright
     % bright ! 
     imf(imf>0) = 0;
     imf = abs(imf);         
@@ -40,8 +46,8 @@ if bTubes
     imf = fibermetric(imf);
 end
 
-imf = imf .* imregionalmax(imfm);
-imOut = imfm;
+imf = imf .* imregionalmax(imf);
+
 
 4;