diff --git a/rtengine/CMakeLists.txt b/rtengine/CMakeLists.txt
index c5c8afa82..f52cfa256 100644
--- a/rtengine/CMakeLists.txt
+++ b/rtengine/CMakeLists.txt
@@ -32,6 +32,7 @@ set(CAMCONSTSFILE "camconst.json")
 set(RTENGINESOURCEFILES
     badpixels.cc
     CA_correct_RT.cc
+    capturesharpening.cc
     EdgePreservingDecomposition.cc
     FTblockDN.cc
     PF_correct_RT.cc
diff --git a/rtengine/capturesharpening.cc b/rtengine/capturesharpening.cc
new file mode 100644
index 000000000..71cefaca6
--- /dev/null
+++ b/rtengine/capturesharpening.cc
@@ -0,0 +1,218 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2019 Ingo Weyrich (heckflosse67@gmx.de)
+ *
+ *  RawTherapee 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <cmath>
+#include <iostream>
+
+#include "jaggedarray.h"
+#include "rtengine.h"
+#include "rawimagesource.h"
+#include "rt_math.h"
+#include "improcfun.h"
+#include "procparams.h"
+#include "color.h"
+#include "gauss.h"
+#include "rt_algo.h"
+#define BENCHMARK
+#include "StopWatch.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif
+#include "opthelper.h"
+#include "../rtgui/multilangmgr.h"
+
+namespace {
+void CaptureDeconvSharpening (float** luminance, float** tmp, const float * const * blend, int W, int H, double sigma, int iterations, rtengine::ProgressListener* plistener, double start, double step)
+{
+
+    rtengine::JaggedArray<float> tmpI(W, H);
+
+#ifdef _OPENMP
+    #pragma omp parallel
+#endif
+    {
+#ifdef _OPENMP
+        #pragma omp for
+#endif
+        for (int i = 0; i < H; i++) {
+            for(int j = 0; j < W; j++) {
+                tmpI[i][j] = max(luminance[i][j], 0.f);
+            }
+        }
+        
+        for (int k = 0; k < iterations; k++) {
+            // apply gaussian blur and divide luminance by result of gaussian blur
+            gaussianBlur(tmpI, tmp, W, H, sigma, nullptr, GAUSS_DIV, luminance);
+            gaussianBlur(tmp, tmpI, W, H, sigma, nullptr, GAUSS_MULT);
+            if (plistener) {
+#ifdef _OPENMP
+                #pragma omp single
+#endif
+                start += step;
+                plistener->setProgress(start);
+            }
+        } // end for
+
+#ifdef _OPENMP
+        #pragma omp for
+#endif
+
+        for (int i = 0; i < H; ++i) {
+            for (int j = 0; j < W; ++j) {
+                luminance[i][j] = rtengine::intp(blend[i][j], max(tmpI[i][j], 0.0f), luminance[i][j]);
+            }
+        }
+    } // end parallel
+}
+
+}
+
+namespace rtengine
+{
+
+void RawImageSource::captureSharpening(const procparams::CaptureSharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) {
+BENCHFUN
+
+
+    if (plistener) {
+        plistener->setProgressStr(M("TP_PDSHARPENING_LABEL"));
+        plistener->setProgress(0.0);
+    }
+
+    const float xyz_rgb[3][3] = {          // XYZ from RGB
+                                    { 0.412453, 0.357580, 0.180423 },
+                                    { 0.212671, 0.715160, 0.072169 },
+                                    { 0.019334, 0.119193, 0.950227 }
+                                };
+
+    float contrast = conrastThreshold / 100.f;
+
+    array2D<float>& redVals = redCache ? *redCache : red;
+    array2D<float>& greenVals = greenCache ? *greenCache : green;
+    array2D<float>& blueVals = blueCache ? *blueCache : blue;
+
+    if (showMask) {
+        StopWatch Stop1("Show mask");
+        array2D<float>& L = blue; // blue will be overridden anyway => we can use its buffer to store L
+#ifdef _OPENMP
+        #pragma omp parallel for
+#endif
+
+        for (int i = 0; i < H; ++i) {
+            Color::RGB2L(redVals[i], greenVals[i], blueVals[i], L[i], xyz_rgb, W);
+        }
+        if (plistener) {
+            plistener->setProgress(0.1);
+        }
+        array2D<float>& blend = red; // red will be overridden anyway => we can use its buffer to store the blend mask
+        buildBlendMask(L, blend, W, H, contrast, 1.f, sharpeningParams.autoContrast);
+        if (plistener) {
+            plistener->setProgress(0.2);
+        }
+        conrastThreshold = contrast * 100.f;
+#ifdef _OPENMP
+        #pragma omp parallel for
+#endif
+        for (int i = 0; i < H; ++i) {
+            for (int j = 0; j < W; ++j) {
+                red[i][j] = green[i][j] = blue[i][j] = blend[i][j] * 16384.f;
+            }
+        }
+        if (plistener) {
+            plistener->setProgress(1.0);
+        }
+        return;
+    }
+
+    array2D<float>* Lbuffer = nullptr;
+    if (!redCache) {
+        Lbuffer = new array2D<float>(W, H);
+    }
+
+    array2D<float>* YOldbuffer = nullptr;
+    if (!greenCache) {
+        YOldbuffer = new array2D<float>(W, H);
+    }
+
+    array2D<float>* YNewbuffer = nullptr;
+    if (!blueCache) {
+        YNewbuffer = new array2D<float>(W, H);
+    }
+    array2D<float>& L = Lbuffer ? *Lbuffer : red;
+    array2D<float>& YOld = YOldbuffer ? * YOldbuffer : green;
+    array2D<float>& YNew = YNewbuffer ? * YNewbuffer : blue;
+
+    StopWatch Stop1("rgb2YL");
+#ifdef _OPENMP
+    #pragma omp parallel for schedule(dynamic, 16)
+#endif
+    for (int i = 0; i < H; ++i) {
+        Color::RGB2L(redVals[i], greenVals[i], blueVals[i], L[i], xyz_rgb, W);
+        Color::RGB2Y(redVals[i], greenVals[i], blueVals[i], YOld[i], YNew[i], sharpeningParams.gamma, W);
+    }
+    if (plistener) {
+        plistener->setProgress(0.1);
+    }
+    // calculate contrast based blend factors to reduce sharpening in regions with low contrast
+    JaggedArray<float> blend(W, H);
+    buildBlendMask(L, blend, W, H, contrast, 1.f, sharpeningParams.autoContrast);
+    if (plistener) {
+        plistener->setProgress(0.2);
+    }
+    conrastThreshold = contrast * 100.f;
+
+    Stop1.stop();
+    array2D<float>& tmp = L; // L is not used anymore now => we can use its buffer as the needed temporary buffer
+    CaptureDeconvSharpening(YNew, tmp, blend, W, H, sharpeningParams.deconvradius, sharpeningParams.deconviter, plistener, 0.2, (0.9 - 0.2) / sharpeningParams.deconviter);
+    if (plistener) {
+        plistener->setProgress(0.9);
+    }
+    StopWatch Stop2("Y2RGB");
+    const float gamma = sharpeningParams.gamma;
+#ifdef _OPENMP
+    #pragma omp parallel for schedule(dynamic, 16)
+#endif
+    for (int i = 0; i < H; ++i) {
+        int j = 0;
+#ifdef __SSE2__
+        const vfloat gammav = F2V(gamma);
+        for (; j < W - 3; j += 4) {
+            const vfloat factor = pow_F(LVFU(YNew[i][j]) / vmaxf(LVFU(YOld[i][j]), F2V(0.00001f)), gammav);
+            STVFU(red[i][j], LVFU(redVals[i][j]) * factor);
+            STVFU(green[i][j], LVFU(greenVals[i][j]) * factor);
+            STVFU(blue[i][j], LVFU(blueVals[i][j]) * factor);
+        }
+
+#endif
+        for (; j < W; ++j) {
+            const float factor = pow_F(YNew[i][j] / std::max(YOld[i][j], 0.00001f), gamma);
+            red[i][j] = redVals[i][j] * factor;
+            green[i][j] = greenVals[i][j] * factor;
+            blue[i][j] = blueVals[i][j] * factor;
+        }
+    }
+    Stop2.stop();
+    delete Lbuffer;
+    delete YOldbuffer;
+    delete YNewbuffer;
+    if (plistener) {
+        plistener->setProgress(1.0);
+    }
+}
+
+} /* namespace */
diff --git a/rtengine/imagesource.h b/rtengine/imagesource.h
index 1a5469744..64bb53a49 100644
--- a/rtengine/imagesource.h
+++ b/rtengine/imagesource.h
@@ -46,7 +46,7 @@ struct LensProfParams;
 struct RAWParams;
 struct RetinexParams;
 struct ToneCurveParams;
-struct SharpeningParams;
+struct CaptureSharpeningParams;
 }
 
 class ImageMatrices
@@ -182,7 +182,7 @@ public:
         return this;
     }
     virtual void getRawValues(int x, int y, int rotate, int &R, int &G, int &B) = 0;
-    virtual void captureSharpening(const procparams::SharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) = 0;
+    virtual void captureSharpening(const procparams::CaptureSharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) = 0;
 };
 
 }
diff --git a/rtengine/procparams.cc b/rtengine/procparams.cc
index 60b95a2e8..d88892a3b 100644
--- a/rtengine/procparams.cc
+++ b/rtengine/procparams.cc
@@ -1149,6 +1149,32 @@ bool SharpeningParams::operator !=(const SharpeningParams& other) const
     return !(*this == other);
 }
 
+CaptureSharpeningParams::CaptureSharpeningParams() :
+    enabled(false),
+    autoContrast(true),
+    contrast(10.0),
+    gamma(1.35),
+    deconvradius(0.75),
+    deconviter(30)
+{
+}
+
+bool CaptureSharpeningParams::operator ==(const CaptureSharpeningParams& other) const
+{
+    return
+        enabled == other.enabled
+        && contrast == other.contrast
+        && gamma == other.gamma
+        && autoContrast == other.autoContrast
+        && deconvradius == other.deconvradius
+        && deconviter == other.deconviter;
+}
+
+bool CaptureSharpeningParams::operator !=(const CaptureSharpeningParams& other) const
+{
+    return !(*this == other);
+}
+
 SharpenEdgeParams::SharpenEdgeParams() :
     enabled(false),
     passes(2),
@@ -2830,12 +2856,6 @@ void ProcParams::setDefaults()
     prsharpening.deconvdamping = 0;
 
     pdsharpening = {};
-    pdsharpening.contrast = 10.0;
-    pdsharpening.autoContrast = true;
-    prsharpening.method = "rld";
-    pdsharpening.gamma = 1.35;
-    pdsharpening.deconvradius = 0.75;
-    pdsharpening.deconviter = 30;
 
     vibrance = {};
 
diff --git a/rtengine/procparams.h b/rtengine/procparams.h
index 4be6de254..cbcec0e18 100644
--- a/rtengine/procparams.h
+++ b/rtengine/procparams.h
@@ -542,6 +542,20 @@ struct SharpenMicroParams {
     bool operator !=(const SharpenMicroParams& other) const;
 };
 
+struct CaptureSharpeningParams {
+    bool           enabled;
+    bool           autoContrast;
+    double         contrast;
+    double         gamma;
+    double         deconvradius;
+    int            deconviter;
+
+    CaptureSharpeningParams();
+
+    bool operator ==(const CaptureSharpeningParams& other) const;
+    bool operator !=(const CaptureSharpeningParams& other) const;
+};
+
 /**
   * Parameters of the vibrance
   */
@@ -1530,7 +1544,7 @@ public:
     ColorToningParams       colorToning;     ///< Color Toning parameters
     SharpeningParams        sharpening;      ///< Sharpening parameters
     SharpeningParams        prsharpening;    ///< Sharpening parameters for post resize sharpening
-    SharpeningParams        pdsharpening;    ///< Sharpening parameters for post demosaic sharpening
+    CaptureSharpeningParams pdsharpening;    ///< Sharpening parameters for post demosaic sharpening
     SharpenEdgeParams       sharpenEdge;     ///< Sharpen edge parameters
     SharpenMicroParams      sharpenMicro;    ///< Sharpen microcontrast parameters
     VibranceParams          vibrance;        ///< Vibrance parameters
diff --git a/rtengine/rawimagesource.cc b/rtengine/rawimagesource.cc
index 2b45bfe38..931a46ede 100644
--- a/rtengine/rawimagesource.cc
+++ b/rtengine/rawimagesource.cc
@@ -38,14 +38,12 @@
 #include "camconst.h"
 #include "procparams.h"
 #include "color.h"
-#include "rt_algo.h"
-#define BENCHMARK
-#include "StopWatch.h"
+//#define BENCHMARK
+//#include "StopWatch.h"
 #ifdef _OPENMP
 #include <omp.h>
 #endif
 #include "opthelper.h"
-#include "../rtgui/multilangmgr.h"
 #define clipretinex( val, minv, maxv )    (( val = (val < minv ? minv : val ) ) > maxv ? maxv : val )
 #undef CLIPD
 #define CLIPD(a) ((a)>0.0f?((a)<1.0f?(a):1.0f):0.0f)
@@ -5000,138 +4998,6 @@ void RawImageSource::getRawValues(int x, int y, int rotate, int &R, int &G, int
     }
 }
 
-void RawImageSource::captureSharpening(const procparams::SharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) {
-BENCHFUN
-
-
-    if (plistener) {
-        plistener->setProgressStr(M("TP_PDSHARPENING_LABEL"));
-        plistener->setProgress(0.0);
-    }
-
-    const float xyz_rgb[3][3] = {          // XYZ from RGB
-                                    { 0.412453, 0.357580, 0.180423 },
-                                    { 0.212671, 0.715160, 0.072169 },
-                                    { 0.019334, 0.119193, 0.950227 }
-                                };
-
-    float contrast = conrastThreshold / 100.f;
-
-    array2D<float>& redVals = redCache ? *redCache : red;
-    array2D<float>& greenVals = greenCache ? *greenCache : green;
-    array2D<float>& blueVals = blueCache ? *blueCache : blue;
-
-    if (showMask) {
-        StopWatch Stop1("Show mask");
-        array2D<float>& L = blue; // blue will be overridden anyway => we can use its buffer to store L
-#ifdef _OPENMP
-        #pragma omp parallel for
-#endif
-
-        for (int i = 0; i < H; ++i) {
-            Color::RGB2L(redVals[i], greenVals[i], blueVals[i], L[i], xyz_rgb, W);
-        }
-        if (plistener) {
-            plistener->setProgress(0.1);
-        }
-        array2D<float>& blend = red; // red will be overridden anyway => we can use its buffer to store the blend mask
-        buildBlendMask(L, blend, W, H, contrast, 1.f, sharpeningParams.autoContrast);
-        if (plistener) {
-            plistener->setProgress(0.2);
-        }
-        conrastThreshold = contrast * 100.f;
-#ifdef _OPENMP
-        #pragma omp parallel for
-#endif
-        for (int i = 0; i < H; ++i) {
-            for (int j = 0; j < W; ++j) {
-                red[i][j] = green[i][j] = blue[i][j] = blend[i][j] * 16384.f;
-            }
-        }
-        if (plistener) {
-            plistener->setProgress(1.0);
-        }
-        return;
-    }
-
-    array2D<float>* Lbuffer = nullptr;
-    if (!redCache) {
-        Lbuffer = new array2D<float>(W, H);
-    }
-
-    array2D<float>* YOldbuffer = nullptr;
-    if (!greenCache) {
-        YOldbuffer = new array2D<float>(W, H);
-    }
-
-    array2D<float>* YNewbuffer = nullptr;
-    if (!blueCache) {
-        YNewbuffer = new array2D<float>(W, H);
-    }
-    array2D<float>& L = Lbuffer ? *Lbuffer : red;
-    array2D<float>& YOld = YOldbuffer ? * YOldbuffer : green;
-    array2D<float>& YNew = YNewbuffer ? * YNewbuffer : blue;
-
-    StopWatch Stop1("rgb2YL");
-#ifdef _OPENMP
-    #pragma omp parallel for schedule(dynamic, 16)
-#endif
-    for (int i = 0; i < H; ++i) {
-        Color::RGB2L(redVals[i], greenVals[i], blueVals[i], L[i], xyz_rgb, W);
-        Color::RGB2Y(redVals[i], greenVals[i], blueVals[i], YOld[i], YNew[i], sharpeningParams.gamma, W);
-    }
-    if (plistener) {
-        plistener->setProgress(0.1);
-    }
-    // calculate contrast based blend factors to reduce sharpening in regions with low contrast
-    JaggedArray<float> blend(W, H);
-    buildBlendMask(L, blend, W, H, contrast, 1.f, sharpeningParams.autoContrast);
-    if (plistener) {
-        plistener->setProgress(0.2);
-    }
-    conrastThreshold = contrast * 100.f;
-
-    Stop1.stop();
-    array2D<float>& tmp = L; // L is not used anymore now => we can use its buffer as the needed temporary buffer
-    ProcParams dummy;
-    ImProcFunctions ipf(&dummy);
-    ipf.deconvsharpening(YNew, tmp, blend, W, H, sharpeningParams, 1.0);
-    if (plistener) {
-        plistener->setProgress(0.9);
-    }
-    StopWatch Stop2("Y2RGB");
-    const float gamma = sharpeningParams.gamma;
-#ifdef _OPENMP
-    #pragma omp parallel for schedule(dynamic, 16)
-#endif
-    for (int i = 0; i < H; ++i) {
-        int j = 0;
-#ifdef __SSE2__
-        const vfloat gammav = F2V(gamma);
-        for (; j < W - 3; j += 4) {
-            const vfloat factor = pow_F(LVFU(YNew[i][j]) / vmaxf(LVFU(YOld[i][j]), F2V(0.00001f)), gammav);
-            STVFU(red[i][j], LVFU(redVals[i][j]) * factor);
-            STVFU(green[i][j], LVFU(greenVals[i][j]) * factor);
-            STVFU(blue[i][j], LVFU(blueVals[i][j]) * factor);
-        }
-
-#endif
-        for (; j < W; ++j) {
-            const float factor = pow_F(YNew[i][j] / std::max(YOld[i][j], 0.00001f), gamma);
-            red[i][j] = redVals[i][j] * factor;
-            green[i][j] = greenVals[i][j] * factor;
-            blue[i][j] = blueVals[i][j] * factor;
-        }
-    }
-    Stop2.stop();
-    delete Lbuffer;
-    delete YOldbuffer;
-    delete YNewbuffer;
-    if (plistener) {
-        plistener->setProgress(1.0);
-    }
-}
-
 void RawImageSource::cleanup ()
 {
     delete phaseOneIccCurve;
diff --git a/rtengine/rawimagesource.h b/rtengine/rawimagesource.h
index bbc15c448..5e1c9b424 100644
--- a/rtengine/rawimagesource.h
+++ b/rtengine/rawimagesource.h
@@ -311,7 +311,7 @@ protected:
     void    hflip       (Imagefloat* im);
     void    vflip       (Imagefloat* im);
     void getRawValues(int x, int y, int rotate, int &R, int &G, int &B) override;
-    void captureSharpening(const procparams::SharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) override;
+    void captureSharpening(const procparams::CaptureSharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) override;
 };
 
 }
diff --git a/rtengine/stdimagesource.h b/rtengine/stdimagesource.h
index 175f664f8..6b4a67773 100644
--- a/rtengine/stdimagesource.h
+++ b/rtengine/stdimagesource.h
@@ -102,7 +102,7 @@ public:
     void getRawValues(int x, int y, int rotate, int &R, int &G, int &B) override { R = G = B = 0;}
 
     void        flushRGB          () override;
-    void captureSharpening(const procparams::SharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) override {};
+    void captureSharpening(const procparams::CaptureSharpeningParams &sharpeningParams, bool showMask, double &conrastThreshold) override {};
 };
 }
 #endif
diff --git a/rtgui/paramsedited.cc b/rtgui/paramsedited.cc
index 4029d0b9b..db0c24123 100644
--- a/rtgui/paramsedited.cc
+++ b/rtgui/paramsedited.cc
@@ -169,7 +169,6 @@ void ParamsEdited::set(bool v)
     pdsharpening.contrast           = v;
     pdsharpening.autoContrast           = v;
     pdsharpening.gamma   = v;
-    pdsharpening.deconvamount   = v;
     pdsharpening.deconvradius   = v;
     pdsharpening.deconviter     = v;
     prsharpening.enabled            = v;
@@ -1733,10 +1732,6 @@ void ParamsEdited::combine(rtengine::procparams::ProcParams& toEdit, const rteng
         toEdit.pdsharpening.autoContrast = mods.pdsharpening.autoContrast;
     }
 
-    if (pdsharpening.deconvamount) {
-        toEdit.pdsharpening.deconvamount = dontforceSet && options.baBehav[ADDSET_SHARP_AMOUNT] ? toEdit.pdsharpening.deconvamount + mods.pdsharpening.deconvamount : mods.pdsharpening.deconvamount;
-    }
-
     if (pdsharpening.gamma) {
         toEdit.pdsharpening.gamma = dontforceSet && options.baBehav[ADDSET_SHARP_GAMMA] ? toEdit.pdsharpening.gamma + mods.pdsharpening.gamma : mods.pdsharpening.gamma;
     }
@@ -3292,7 +3287,7 @@ bool FilmNegativeParamsEdited::isUnchanged() const
     return enabled && redRatio && greenExp && blueRatio;
 }
 
-bool SharpeningParamsEdited::isUnchanged() const
+bool CaptureSharpeningParamsEdited::isUnchanged() const
 {
     return enabled && contrast && autoContrast && gamma && deconvradius && deconviter;
 }
\ No newline at end of file
diff --git a/rtgui/paramsedited.h b/rtgui/paramsedited.h
index 6d229e689..c697aaacd 100644
--- a/rtgui/paramsedited.h
+++ b/rtgui/paramsedited.h
@@ -196,6 +196,15 @@ struct SharpeningParamsEdited {
     bool deconvradius;
     bool deconviter;
     bool deconvdamping;
+};
+
+struct CaptureSharpeningParamsEdited {
+    bool enabled;
+    bool contrast;
+    bool autoContrast;
+    bool gamma;
+    bool deconvradius;
+    bool deconviter;
     bool isUnchanged() const;
 };
 
@@ -687,7 +696,7 @@ struct ParamsEdited {
     ColorToningEdited colorToning;
     RetinexParamsEdited retinex;
     SharpeningParamsEdited sharpening;
-    SharpeningParamsEdited pdsharpening;
+    CaptureSharpeningParamsEdited pdsharpening;
     SharpeningParamsEdited prsharpening;
     SharpenEdgeParamsEdited sharpenEdge;
     SharpenMicroParamsEdited sharpenMicro;