Debut Tests ASIFT + Essai VISP simplifié

2018-07-23 17:30:57 +02:00 · 2018-07-23 17:30:57 +02:00 · fbafece5af
commit fbafece5af
parent a41f1ba991
1339 changed files with 153161 additions and 56 deletions
--- a/ASIFT_tests/demo_ASIFT_src/domain.cpp
+++ b/ASIFT_tests/demo_ASIFT_src/domain.cpp
@ -0,0 +1,145 @@
+// Authors: Unknown. Please, if you are the author of this file, or if you 
+// know who are the authors of this file, let us know, so we can give the 
+// adequate credits and/or get the adequate authorizations.
+
+#include "domain.h"
+
+
+#define DEBUG 0
+
+
+
+
+void apply_zoom(float *input, float *out, float zoom, int order, int width, int height)
+{
+
+	int nwidth = (int)( zoom * (float) width);
+	int nheight = (int)( zoom * (float) height);
+
+	float *coeffs;
+	float *ref;
+
+	float  cx[12],cy[12],ak[13];
+
+	// Guoshen Yu, 2010.09.22, Windows versions
+	vector<float> input_vec, coeffs_vec, ref_vec;
+	input_vec = vector<float>(width*height);
+	coeffs_vec = vector<float>(width*height);
+	ref_vec = vector<float>(width*height);
+	for (int i = 0; i < width*height; i++)
+		input_vec[i] = input[i];
+
+	if (order!=0 && order!=1 && order!=-3 && 
+      order!=3 && order!=5 && order!=7 && order!=9 && order!=11)
+    	{	
+		printf("unrecognized interpolation order.\n");
+		exit(-1);
+	}
+
+        if (order>=3) {
+
+			coeffs = new float[width*height];
+
+			// Guoshen Yu, 2010.09.21, Windows version
+    		//finvspline(input,order,coeffs,width,height);
+			finvspline(input_vec,order,coeffs_vec,width,height);
+			for (int i = 0; i < width*height; i++)
+				coeffs[i] = coeffs_vec[i];
+
+    		ref = coeffs;
+    		if (order>3) init_splinen(ak,order);
+
+	} else 
+	{
+    		coeffs = NULL;
+    		ref = input;
+  	}
+
+	int xi,yi;
+	float xp,yp;
+	float res;
+	int n1,n2;
+	float bg = 0.0f;
+	float p=-0.5;
+	for(int i=0; i < nwidth; i++)
+		for(int j=0; j < nheight; j++)
+		{
+
+			xp =  (float) i / zoom;
+			yp =  (float) j / zoom;
+
+			if (order == 0) { 
+	
+				xi = (int)floor((double)xp); 
+				yi = (int)floor((double)yp);
+		
+				if (xi<0 || xi>=width || yi<0 || yi>=height)
+		 			 res = bg; 
+				else res = input[yi*width+xi];
+	
+     			 } else { 
+	
+		
+				if (xp<0. || xp>=(float)width || yp<0. || yp>=(float)height) res=bg; 
+				else {
+					xp -= 0.5; yp -= 0.5;
+					int xi = (int)floor((double)xp); 
+					int yi = (int)floor((double)yp);
+					float ux = xp-(float)xi;
+	  				float uy = yp-(float)yi;
+
+					switch (order) 
+	   				{
+					    	case 1: /* first order interpolation (bilinear) */
+	      						n2 = 1;
+							cx[0]=ux;	cx[1]=1.-ux;
+							cy[0]=uy; cy[1]=1.-uy;
+							break;
+						
+						case -3: /* third order interpolation (bicubic Keys' function) */
+							n2 = 2;
+							keys(cx,ux,p);
+							keys(cy,uy,p);
+							break;
+
+						case 3: /* spline of order 3 */
+							n2 = 2;
+							spline3(cx,ux);
+							spline3(cy,uy);
+							break;
+
+						default: /* spline of order >3 */
+							n2 = (1+order)/2;
+							splinen(cx,ux,ak,order);
+							splinen(cy,uy,ak,order);
+							break;
+					}
+	  
+	  				res = 0.; n1 = 1-n2;
+	 				if (xi+n1>=0 && xi+n2<width && yi+n1>=0 && yi+n2<height) {
+	    				
+						int adr = yi*width+xi; 
+	    					for (int dy=n1;dy<=n2;dy++) 
+	    					  for (int dx=n1;dx<=n2;dx++) 
+							res += cy[n2-dy]*cx[n2-dx]*ref[adr+width*dy+dx];
+	  				} else 
+	
+						// Guoshen Yu, 2010.09.21, Windows
+						for (int i = 0; i < width*height; i++)
+							ref_vec[i] = ref[i];
+
+					   	for (int dy=n1;dy<=n2;dy++)
+						      for (int dx=n1;dx<=n2;dx++) 
+							// Guoshen Yu, 2010.09.21, Windows
+							// res += cy[n2-dy]*cx[n2-dx]*v(ref,xi+dx,yi+dy,bg,width,height);
+							res += cy[n2-dy]*cx[n2-dx]*v(ref_vec,xi+dx,yi+dy,bg,width,height);
+      			}
+
+		}	
+
+		out[j*nwidth+i] = res;
+    	
+	}
+
+}
+