diff --git a/plugins/paintops/libpaintop/kis_pressure_hsv_option.cpp b/plugins/paintops/libpaintop/kis_pressure_hsv_option.cpp
index d11a1235c3..62ba1be3af 100644
--- a/plugins/paintops/libpaintop/kis_pressure_hsv_option.cpp
+++ b/plugins/paintops/libpaintop/kis_pressure_hsv_option.cpp
@@ -1,143 +1,147 @@
 /* This file is part of the KDE project
  * Copyright (c) 2010 Cyrille Berger <cberger@cberger.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 #include "kis_pressure_hsv_option.h"
 #include <KoColorTransformation.h>
 #include <kis_debug.h>
 
 KisPressureHSVOption* KisPressureHSVOption::createHueOption() {
     return new KisPressureHSVOption("h");
 }
 
 QString KisPressureHSVOption::hueMinLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(0° is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+180°");
     QString zeroPercent = i18n("-180°");
 
     return QString(zeroPercent + br + i18n("CCW hue") + br + activeColorMsg);
 }
 
 QString KisPressureHSVOption::huemaxLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(0° is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+180°");
     QString zeroPercent = i18n("-180°");
 
     return QString(fullPercent + br + i18n("CW hue"));
 }
 
 KisPressureHSVOption* KisPressureHSVOption::createSaturationOption() {
     return new KisPressureHSVOption("s");
 }
 
 QString KisPressureHSVOption::saturationMinLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(50% is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+100%");
     QString zeroPercent = i18n("-100%");
 
     return QString(zeroPercent + br + i18n("Less saturation ") + br + activeColorMsg);
 
 }
 
 QString KisPressureHSVOption::saturationmaxLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(50% is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+100%");
     QString zeroPercent = i18n("-100%");
 
     return QString(fullPercent + br + i18n("More saturation"));
 }
 
 KisPressureHSVOption* KisPressureHSVOption::createValueOption() {
     return new KisPressureHSVOption("v");
 }
 
 QString KisPressureHSVOption::valueMinLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(50% is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+100%");
     QString zeroPercent = i18n("-100%");
 
     return QString(zeroPercent + br + i18n("Lower value ") + br + activeColorMsg);
 
 }
 
 QString KisPressureHSVOption::valuemaxLabel()
 {
     // xgettext: no-c-format
     QString activeColorMsg = i18n("(50% is active color)");
     QString br("<br />");
     QString fullPercent = i18n("+100%");
     QString zeroPercent = i18n("-100%");
 
     return QString(fullPercent + br + i18n("Higher value"));
 
 
 }
 
 struct KisPressureHSVOption::Private
 {
     QString parameterName;
     int paramId;
 };
 
 KisPressureHSVOption::KisPressureHSVOption(const QString& parameterName)
     : KisCurveOption(parameterName, KisPaintOpOption::COLOR, false)
     , d(new Private())
 {
     d->parameterName = parameterName;
     d->paramId = -1;
 }
 
 KisPressureHSVOption::~KisPressureHSVOption()
 {
     delete d;
 }
 
 
 void KisPressureHSVOption::apply(KoColorTransformation* transfo, const KisPaintInformation& info) const
 {
     if (!isChecked()) {
         return;
     }
 
     if (d->paramId == -1) {
         d->paramId = transfo->parameterId(d->parameterName);
     }
 
     qreal v = computeSizeLikeValue(info);
     if (d->parameterName == "h") {
         v = computeRotationLikeValue(info, 0, false);
         v = (v) * (this->value());//multiply by strength slider.
+    } else {
+        qreal halfValue = this->value()*0.5;
+        v = (v*this->value()) + (0.5-halfValue);
+        v = (v*2)-1;
     }
     transfo->setParameter(d->paramId, v);
     transfo->setParameter(3, 0); //sets the type to HSV.
     transfo->setParameter(4, false); //sets the colorize to false.
 }