diff --git a/src/CUDA.cu b/src/CUDA.cu
index c72fe57..3032e29 100644
--- a/src/CUDA.cu
+++ b/src/CUDA.cu
@@ -691,3 +691,4 @@ free_all:
 }
 extern "C"  int MedFilter(float *ima, float **result, Filter *f, int sizex, int sizey){return 0;}
 extern "C"  int GradFilterSimple(float *ima, float **result, Filter *f, int sizex, int sizey){return 0;}
+
diff --git a/src/NOCUDA.c b/src/NOCUDA.c
index fef4410..eb2f73b 100644
--- a/src/NOCUDA.c
+++ b/src/NOCUDA.c
@@ -678,60 +678,6 @@ int MedFilter(float *ima,
 	DBG("time=%f\n", dtime()-t0);
 	return TRUE;
 }
-/*
- * Fill isolines' scale (an array)
- * Input:
- * 		f - filter for given method
- * 		min - minimum value of intensity
- * 		wd - max-min (dinamic range)
- * Output:
- * 		scale - a pointer to array (allocated in this function)
- */
-int fillIsoScale(Filter *f, float **scale, float min, float wd){
-	int M = f->w, y;
-	float (*scalefn)(float in);
-	float step, Nsteps = (float)f->w; // amount of intervals
-	float Suniform(float in){
-		return step*in + min;
-	}
-	float Slog(float in){
-		return expf(in*step) + min - 1.;
-	}
-	float Sexp(float in){
-		return wd*logf(in*step) + min;
-	}
-	float Ssqrt(float in){
-		return in*in*step*step + min;
-	}
-	float Spow(float in){
-		return sqrtf(in*step) + min;
-	}
-	if(!scale) return FALSE;
-
-	*scale = calloc(M, sizeof(float));
-	if(!*scale) return FALSE;
-	switch(f->h){
-		case LOG:
-			scalefn = Slog; step = logf(wd+1.)/Nsteps;
-		break;
-		case EXP:
-			scalefn = Sexp; step = expf(1.)/Nsteps;
-		break;
-		case SQRT:
-			scalefn = Ssqrt; step = sqrtf(wd)/Nsteps;
-		break;
-		case POW:
-			scalefn = Spow; step = wd*wd/Nsteps;
-		break;
-		default:
-			scalefn = Suniform; step = wd/Nsteps;
-	}
-	for(y = 0; y < M; y++){
-		(*scale)[y] = scalefn(y+1);
-		DBG("level %d: I=%g", y, (*scale)[y]);
-	}
-	return TRUE;
-}
 
 /*
  * Threshold filtering ("posterization")
diff --git a/src/contours.c b/src/contours.c
index ccb88e1..75942e6 100644
--- a/src/contours.c
+++ b/src/contours.c
@@ -1,17 +1,17 @@
 //      contours.c - find isophotos
-//      
+//
 //      Copyright 2011 Edward V. Emelianoff <eddy@sao.ru>
-//      
+//
 //      This program is free software; you can redistribute it and/or modify
 //      it under the terms of the GNU General Public License as published by
 //      the Free Software Foundation; either version 2 of the License, or
 //      (at your option) any later version.
-//      
+//
 //      This program is distributed in the hope that it will be useful,
 //      but WITHOUT ANY WARRANTY; without even the implied warranty of
 //      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //      GNU General Public License for more details.
-//      
+//
 //      You should have received a copy of the GNU General Public License
 //      along with this program; if not, write to the Free Software
 //      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
@@ -19,6 +19,7 @@
 
 #include "contours.h"
 #include "opengl.h"
+#include "imtools.h"
 
 // contours' minimum size limits
 const int MIN_CONTOUR_SIZE = 4;
@@ -174,7 +175,7 @@ int directions[16] = {
 int dxdy[9][2] = {
 	{0 , 0}, // 0
 	{1 , 0}, // D_RIGHT
-	{-1, 0}, // D_LEFT 
+	{-1, 0}, // D_LEFT
 	{0 , 0},
 	{0 , 1}, // D_DOWN
 	{0 , 0},
@@ -186,7 +187,7 @@ int dxdy[9][2] = {
 int newdirs[16][2] = {
 	{0, 0},     // 0
 	{D_RIGHT,D_RIGHT},// D_RIGHT
-	{D_LEFT, D_LEFT}, // D_LEFT 
+	{D_LEFT, D_LEFT}, // D_LEFT
 	{D_RIGHT, D_LEFT},// D_RIGHT | D_LEFT
 	{D_DOWN, D_DOWN}, // D_DOWN
 	{D_RIGHT, D_DOWN},// D_DOWN | D_RIGHT
@@ -194,7 +195,7 @@ int newdirs[16][2] = {
 	{D_RIGHT, D_LEFT},// D_DOWN | D_RIGHT | D_LEFT
 	{D_UP, D_UP},     // D_UP
 	{D_RIGHT, D_UP},  // D_UP | D_RIGHT
-	{D_LEFT, D_UP},   // D_UP | D_LEFT 
+	{D_LEFT, D_UP},   // D_UP | D_LEFT
 	{D_RIGHT, D_UP},  // D_UP | D_RIGHT | D_LEFT
 	{D_DOWN, D_UP},   // D_UP | D_DOWN
 	{D_RIGHT, D_UP},  // D_UP | D_DOWN | D_RIGHT
@@ -387,7 +388,7 @@ int process_it_(int x, int y, int lvl, float *imdata, unsigned char *mask){
 	Contour *cCur;
 	unsigned char pt0 = mask[y*w1+x];
 	if(pt0 == 0 || pt0 > 14) return TRUE;;
-	do{ 
+	do{
 		if(!contours[lvl]){ // countour wasn't created - create it
 			contours[lvl] = new_clist(lvl);
 			if(!contours[lvl]){
diff --git a/src/fitsview b/src/fitsview
deleted file mode 100755
index 533c09b..0000000
Binary files a/src/fitsview and /dev/null differ
diff --git a/src/imtools.c b/src/imtools.c
index 436595b..0c2ebae 100644
--- a/src/imtools.c
+++ b/src/imtools.c
@@ -636,3 +636,58 @@ void filter_image( Window *window,
 	force_redraw(window->drawingArea);
 }
 
+
+/*
+ * Fill isolines' scale (an array)
+ * Input:
+ * 		f - filter for given method
+ * 		min - minimum value of intensity
+ * 		wd - max-min (dinamic range)
+ * Output:
+ * 		scale - a pointer to array (allocated in this function)
+ */
+int fillIsoScale(Filter *f, float **scale, float min, float wd){
+	int M = f->w, y;
+	float (*scalefn)(float in);
+	float step, Nsteps = (float)f->w; // amount of intervals
+	float Suniform(float in){
+		return step*in + min;
+	}
+	float Slog(float in){
+		return expf(in*step) + min - 1.;
+	}
+	float Sexp(float in){
+		return wd*logf(in*step) + min;
+	}
+	float Ssqrt(float in){
+		return in*in*step*step + min;
+	}
+	float Spow(float in){
+		return sqrtf(in*step) + min;
+	}
+	if(!scale) return FALSE;
+
+	*scale = calloc(M, sizeof(float));
+	if(!*scale) return FALSE;
+	switch(f->h){
+		case LOG:
+			scalefn = Slog; step = logf(wd+1.)/Nsteps;
+		break;
+		case EXP:
+			scalefn = Sexp; step = expf(1.)/Nsteps;
+		break;
+		case SQRT:
+			scalefn = Ssqrt; step = sqrtf(wd)/Nsteps;
+		break;
+		case POW:
+			scalefn = Spow; step = wd*wd/Nsteps;
+		break;
+		default:
+			scalefn = Suniform; step = wd/Nsteps;
+	}
+	for(y = 0; y < M; y++){
+		(*scale)[y] = scalefn(y+1);
+		DBG("level %d: I=%g", y, (*scale)[y]);
+	}
+	return TRUE;
+}
diff --git a/src/include/CUtools.h b/src/include/CUtools.h
index f894f1e..80fbb10 100644
--- a/src/include/CUtools.h
+++ b/src/include/CUtools.h
@@ -45,7 +45,6 @@ enum{
 EXTERN int fill_hough_lines(float *ima, float min, float max, int imW, int imH, int Rmax, int angles, float *hough);
 EXTERN int DiffFilter(float *ima, float **result, Filter *f, int sizex, int sizey);
 EXTERN int MedFilter(float *ima, float **result, Filter *f, int sizex, int sizey);
-EXTERN int fillIsoScale(Filter *f, float **scale, float min, float wd);
 EXTERN int StepFilter(float *ima, float **result, Filter *f, int sizex, int sizey, float min, float max, float **scale);
 EXTERN int GradFilterSimple(float *ima, float **result, Filter *f, int sizex, int sizey);
 #endif // _CUTOOLS_H_
diff --git a/src/include/imtools.h b/src/include/imtools.h
index 98c5d73..79ea2d8 100644
--- a/src/include/imtools.h
+++ b/src/include/imtools.h
@@ -16,4 +16,5 @@ void get_circles_params(Window *window, IMAGE *ima);
 void hough_lines(Window *window);
 void get_houg_line(Window *window, double x, double y, double *phi_, double *R_);
 void filter_image(Window *window, Filter *f);
+int fillIsoScale(Filter *f, float **scale, float min, float wd);
 #endif // _IMTOOLS_H_