diff --git a/Viewer/ImageDisplay.cpp b/Viewer/ImageDisplay.cpp
index ea7787f..c07e724 100644
--- a/Viewer/ImageDisplay.cpp
+++ b/Viewer/ImageDisplay.cpp
@@ -330,6 +330,32 @@ void Viewer::ImageDisplay::cropAndScale()
     update();
 }
 
+void Viewer::ImageDisplay::filterNone()
+{
+    cropAndScale();
+    update();
+}
+
+void Viewer::ImageDisplay::filterMono()
+{
+    _croppedAndScaledImg = _croppedAndScaledImg.convertToFormat(_croppedAndScaledImg.Format_Mono);
+    update();
+}
+
+// I can't believe there isn't a standard conversion for this??? -- WH
+void Viewer::ImageDisplay::filterBW()
+{
+    for (int y = 0; y < _croppedAndScaledImg.height(); ++y) {
+        for (int x = 0; x < _croppedAndScaledImg.width(); ++x) {
+            int pixel = _croppedAndScaledImg.pixel(x, y);
+            int gray = qGray(pixel);
+            int alpha = qAlpha(pixel);
+            _croppedAndScaledImg.setPixel(x, y, qRgba(gray, gray, gray, alpha));
+        }
+    }
+    update();
+}
+
 void Viewer::ImageDisplay::updateZoomCaption() {
     const QSize imgSize = _loadedImage.size();
     // similar to sizeRatio(), but we take the _highest_ factor.
diff --git a/Viewer/ImageDisplay.h b/Viewer/ImageDisplay.h
index e54938a..0ca6a5a 100644
--- a/Viewer/ImageDisplay.h
+++ b/Viewer/ImageDisplay.h
@@ -59,6 +59,10 @@ public:
     virtual void pixmapLoaded( const QString& fileName, const QSize& size, const QSize& fullSize, int angle, const QImage&, const bool loadedOK);
     void setImageList( const QStringList& list );
 
+    void filterNone();
+    void filterMono();
+    void filterBW();
+
 public slots:
     void zoomIn();
     void zoomOut();
diff --git a/Viewer/ViewerWidget.cpp b/Viewer/ViewerWidget.cpp
index 9ea3625..095afa1 100644
--- a/Viewer/ViewerWidget.cpp
+++ b/Viewer/ViewerWidget.cpp
@@ -136,6 +136,7 @@ void Viewer::ViewerWidget::setupContextMenu()
     createInvokeExternalMenu();
     createVideoMenu();
     createCategoryImageMenu();
+    createFilterMenu();
 
     KAction* action = _actions->addAction( QString::fromLatin1("viewer-edit-image-properties"), this, SLOT( editImage() ) );
     action->setText( i18n("Annotate...") );
@@ -414,6 +415,7 @@ void Viewer::ViewerWidget::load()
     _rotateMenu->setEnabled( !isVideo );
     _wallpaperMenu->setEnabled( !isVideo );
     _categoryImagePopup->setEnabled( !isVideo );
+    _filterMenu->setEnabled( !isVideo );
 #ifdef HAVE_EXIV2
     _showExifViewer->setEnabled( !isVideo );
 #endif
@@ -835,6 +837,27 @@ void Viewer::ViewerWidget::editImage()
     MainWindow::Window::configureImages( list, true );
 }
 
+void Viewer::ViewerWidget::filterNone()
+{
+    if ( _display == _imageDisplay ) {
+        _imageDisplay->filterNone();
+    }
+}
+
+void Viewer::ViewerWidget::filterBW()
+{
+    if ( _display == _imageDisplay ) {
+        _imageDisplay->filterBW();
+    }
+}
+
+void Viewer::ViewerWidget::filterMono()
+{
+    if ( _display == _imageDisplay ) {
+        _imageDisplay->filterMono();
+    }
+}
+
 void Viewer::ViewerWidget::slotSetStackHead()
 {
     MainWindow::Window::theMainWindow()->setStackHead( DB::ImageDB::instance()->ID_FOR_FILE( _list[ _current ] ) );
@@ -1050,6 +1073,27 @@ void Viewer::ViewerWidget::createCategoryImageMenu()
     connect( _categoryImagePopup, SIGNAL( aboutToShow() ), this, SLOT( populateCategoryImagePopup() ) );
 }
 
+void Viewer::ViewerWidget::createFilterMenu()
+{
+    _filterMenu = new QMenu( _popup );
+    _filterMenu->setTitle( i18n("Filters") );
+
+    _filterNone = _actions->addAction( QString::fromLatin1("filter-empty"), this, SLOT( filterNone() ) );
+    _filterNone->setText( i18n("Remove All Filters") );
+    _filterMenu->addAction( _filterNone );
+
+    _filterBW = _actions->addAction( QString::fromLatin1("filter-bw"), this, SLOT( filterBW() ) );
+    _filterBW->setText( i18n("Apply Grayscale Filter") );
+    _filterMenu->addAction( _filterBW );
+
+    _filterMono = _actions->addAction( QString::fromLatin1("filter-mono"), this, SLOT( filterMono() ) );
+    _filterMono->setText( i18n("Apply Monochrome Filter") );
+    _filterMenu->addAction( _filterMono );
+
+    _popup->addMenu( _filterMenu );
+}
+
+
 void Viewer::ViewerWidget::test()
 {
 #ifdef TESTING
diff --git a/Viewer/ViewerWidget.h b/Viewer/ViewerWidget.h
index fe123cc..bb1a434 100644
--- a/Viewer/ViewerWidget.h
+++ b/Viewer/ViewerWidget.h
@@ -90,6 +90,7 @@ protected:
     void createSlideShowMenu();
     void createVideoMenu();
     void createCategoryImageMenu();
+    void createFilterMenu();
     void changeSlideShowInterval( int delta );
     void createVideoViewer();
 
@@ -122,6 +123,9 @@ protected slots:
     void slotSlideShowFaster();
     void slotSlideShowSlower();
     void editImage();
+    void filterNone();
+    void filterBW();
+    void filterMono();
     void slotSetStackHead();
     void updateCategoryConfig();
     void slotSetWallpaperC();
@@ -153,6 +157,9 @@ private:
     KAction* _slideShowRunFaster;
     KAction* _slideShowRunSlower;
     KAction* _setStackHead;
+    KAction* _filterNone;
+    KAction* _filterBW;
+    KAction* _filterMono;
 
     Display* _display;
     ImageDisplay* _imageDisplay;
@@ -165,6 +172,7 @@ private:
     QMenu* _popup;
     QMenu* _rotateMenu;
     QMenu* _wallpaperMenu;
+    QMenu* _filterMenu;
     MainWindow::ExternalPopup* _externalPopup;
     MainWindow::CategoryImagePopup* _categoryImagePopup;
     int _width, _height;