diff --git a/rtengine/color.cc b/rtengine/color.cc
index 66887f550..171a7efcd 100644
--- a/rtengine/color.cc
+++ b/rtengine/color.cc
@@ -887,7 +887,7 @@ void Color::xyz2rgb (vfloat x, vfloat y, vfloat z, vfloat &r, vfloat &g, vfloat
 #ifdef __SSE2__
 void Color::trcGammaBW (float &r, float &g, float &b, float gammabwr, float gammabwg, float gammabwb)
 {
-    // correct gamma for black and white image : pseudo TRC curve of ICC profil
+    // correct gamma for black and white image : pseudo TRC curve of ICC profile
     vfloat rgbv = _mm_set_ps(0.f, r, r, r); // input channel is always r
     vfloat gammabwv = _mm_set_ps(0.f, gammabwb, gammabwg, gammabwr);
     vfloat c65535v = F2V(65535.f);
@@ -903,7 +903,7 @@ void Color::trcGammaBW (float &r, float &g, float &b, float gammabwr, float gamm
 }
 void Color::trcGammaBWRow (float *r, float *g, float *b, int width, float gammabwr, float gammabwg, float gammabwb)
 {
-    // correct gamma for black and white image : pseudo TRC curve of ICC profil
+    // correct gamma for black and white image : pseudo TRC curve of ICC profile
     vfloat c65535v = F2V(65535.f);
     vfloat gammabwrv = F2V(gammabwr);
     vfloat gammabwgv = F2V(gammabwg);
@@ -931,7 +931,7 @@ void Color::trcGammaBWRow (float *r, float *g, float *b, int width, float gammab
 #else
 void Color::trcGammaBW (float &r, float &g, float &b, float gammabwr, float gammabwg, float gammabwb)
 {
-    // correct gamma for black and white image : pseudo TRC curve of ICC profil
+    // correct gamma for black and white image : pseudo TRC curve of ICC profile
     float in = r; // input channel is always r
     in /= 65535.0f;
     in = max(in, 0.f);
diff --git a/rtengine/improcfun.cc b/rtengine/improcfun.cc
index 7fcee7512..3d3d9de9c 100644
--- a/rtengine/improcfun.cc
+++ b/rtengine/improcfun.cc
@@ -40,7 +40,7 @@
 #include "improccoordinator.h"
 #include "clutstore.h"
 #include "ciecam02.h"
-#define BENCHMARK
+//#define BENCHMARK
 #include "StopWatch.h"
 #include "../rtgui/ppversion.h"
 #include "../rtgui/guiutils.h"
@@ -4132,7 +4132,7 @@ void ImProcFunctions::rgbProc (Imagefloat* working, LabImage* lab, PipetteBuffer
 #endif
 
                         }
-                    } else if (algm == 1) { //Luminance mixer in Lab mode to avoid artifacts
+                    } else if (algm == 1) { //Luminance mixer in Lab mode to avoid artefacts
                         for (int i = istart, ti = 0; i < tH; i++, ti++) {
                             for (int j = jstart, tj = 0; j < tW; j++, tj++) {
                                 //rgb => xyz