diff --git a/rtdata/languages/default b/rtdata/languages/default
index 9a3402f5f..08c74cc7a 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -1807,6 +1807,7 @@ THRESHOLDSELECTOR_TR;Top-right
 TOOLBAR_TOOLTIP_COLORPICKER;Lockable Color Picker\n\nWhen the tool is active:\n- Add a picker: <b>left-click</b>.\n- Drag a picker: <b>left-click and drag</b>.\n- Delete a picker: <b>right-click</b>.\n- Delete all pickers: <b>Ctrl</b>+<b>Shift</b>+<b>right-click</b>.\n- Revert to hand tool: <b>right-click</b> outside any picker.
 TOOLBAR_TOOLTIP_CROP;<b>Crop</b> selection.\nShortcut: <b>c</b>\nMove the crop using <b>Shift</b>+<b>mouse drag</b>.
 TOOLBAR_TOOLTIP_HAND;Hand tool.\nShortcut: <b>h</b>
+TOOLBAR_TOOLTIP_PERSPECTIVE;<b>Perspective Correction</b>\n\nEdit control lines to correct perspective distortion. Click this button again to apply correction.
 TOOLBAR_TOOLTIP_STRAIGHTEN;<b>Straighten</b> / <b>fine rotation</b>.\nShortcut: <b>s</b>\n\nIndicate the vertical or horizontal by drawing a guide line over the image preview. Angle of rotation will be shown next to the guide line. Center of rotation is the geometrical center of the image.
 TOOLBAR_TOOLTIP_WB;Spot white balance.\nShortcut: <b>w</b>
 TP_BWMIX_ALGO;Algorithm OYCPM
diff --git a/rtgui/cropwindow.cc b/rtgui/cropwindow.cc
index 975bac15c..a862ed122 100644
--- a/rtgui/cropwindow.cc
+++ b/rtgui/cropwindow.cc
@@ -414,7 +414,8 @@ void CropWindow::buttonPress (int button, int type, int bstate, int x, int y)
                             action_y = 0;
                             needRedraw = true;
                         }
-                    } else if (iarea->getToolMode () == TMHand
+                    } else if ((iarea->getToolMode () == TMHand
+                                || iarea->getToolMode() == TMPerspective)
                                && editSubscriber
                                && cropgl
                                && cropgl->inImageArea(iarea->posImage.x, iarea->posImage.y)
@@ -429,7 +430,7 @@ void CropWindow::buttonPress (int button, int type, int bstate, int x, int y)
                                 state = SEditPick1;
                                 pickedObject = iarea->getObject();
                                 pickModifierKey = bstate;
-                            } else {
+                            } else if (iarea->getToolMode() == TMPerspective) {
                                 state = SCropImgMove;
                             }
                             press_x = x;
@@ -594,7 +595,7 @@ void CropWindow::buttonPress (int button, int type, int bstate, int x, int y)
             }
         }
     } else if (button == 3) {
-        if (iarea->getToolMode () == TMHand) {
+        if (iarea->getToolMode () == TMHand || iarea->getToolMode() == TMPerspective) {
             EditSubscriber *editSubscriber = iarea->getCurrSubscriber();
             if (editSubscriber && editSubscriber->getEditingType() == ET_OBJECTS) {
                 needRedraw = editSubscriber->button3Pressed(bstate);
diff --git a/rtgui/perspective.cc b/rtgui/perspective.cc
index 395729adb..55013ec4a 100644
--- a/rtgui/perspective.cc
+++ b/rtgui/perspective.cc
@@ -108,6 +108,7 @@ PerspCorrection::PerspCorrection () : FoldableToolPanel(this, "perspective", M("
     EvPerspControlLines = mapper->newEvent(M_VOID, "HISTORY_MSG_PERSP_CTRL_LINE");
 
     lens_geom_listener = nullptr;
+    panel_listener = nullptr;
     metadata = nullptr;
 
     Gtk::Image* ipers_draw(new RTImage ("draw.png"));
@@ -613,6 +614,17 @@ void PerspCorrection::setAdjusterBehavior (bool badd, bool camera_focal_length_a
     projection_yaw->setAddMode(projection_angle_add);
 }
 
+void PerspCorrection::setControlLineEditMode(bool active)
+{
+    // Only camera-based mode supports control lines, so the mode must be
+    // switched if not in camera-based mode.
+    if (method->get_active_row_number() != 1) {
+        method->set_active(1);
+    }
+
+    lines_button_edit->set_active(active);
+}
+
 void PerspCorrection::setMetadata (const rtengine::FramesMetaData* metadata)
 {
     this->metadata = metadata;
@@ -748,6 +760,9 @@ void PerspCorrection::linesEditButtonPressed(void)
         lines_button_apply->set_sensitive(true);
         lines_button_erase->set_sensitive(true);
         setCamBasedEventsActive(false);
+        if (panel_listener) {
+            panel_listener->controlLineEditModeChanged(true);
+        }
     } else { // Leave edit mode.
         setCamBasedEventsActive(true);
         lines_button_apply->set_sensitive(false);
@@ -758,6 +773,9 @@ void PerspCorrection::linesEditButtonPressed(void)
         }
         lines->setDrawMode(false);
         lines->setActive(false);
+        if (panel_listener) {
+            panel_listener->controlLineEditModeChanged(false);
+        }
     }
 }
 
@@ -766,6 +784,13 @@ void PerspCorrection::linesEraseButtonPressed(void)
     lines->removeAll();
 }
 
+void PerspCorrection::requestApplyControlLines(void)
+{
+    if (lines_button_apply->is_sensitive()) {
+        linesApplyButtonPressed();
+    }
+}
+
 void PerspCorrection::setCamBasedEventsActive(bool active)
 {
     if (active) {
diff --git a/rtgui/perspective.h b/rtgui/perspective.h
index 0694ccb4e..6ba169b60 100644
--- a/rtgui/perspective.h
+++ b/rtgui/perspective.h
@@ -25,6 +25,14 @@
 #include "lensgeomlistener.h"
 #include "toolpanel.h"
 
+class PerspCorrectionPanelListener
+{
+public:
+    virtual ~PerspCorrectionPanelListener() = default;
+
+    virtual void controlLineEditModeChanged(bool active) = 0;
+};
+
 class PerspCorrection final :
     public ToolParamBlock,
     public AdjusterListener,
@@ -79,6 +87,7 @@ protected:
     rtengine::ProcEvent* event_persp_proj_rotate;
     rtengine::ProcEvent* event_persp_proj_angle;
     LensGeomListener* lens_geom_listener;
+    PerspCorrectionPanelListener* panel_listener;
     const rtengine::FramesMetaData* metadata;
 
     void applyControlLines (void);
@@ -101,12 +110,18 @@ public:
     void linesEditButtonPressed (void);
     void linesEraseButtonPressed (void);
     void methodChanged (void);
+    void requestApplyControlLines(void);
     void setAdjusterBehavior (bool badd, bool camera_focal_length_add, bool camera_shift_add, bool camera_angle_add, bool projection_angle_add, bool projection_shift_add, bool projection_rotate_add);
+    void setControlLineEditMode(bool active);
     void setEditProvider (EditDataProvider* provider) override;
     void setLensGeomListener (LensGeomListener* listener)
     {
         lens_geom_listener = listener;
     }
+    void setPerspCorrectionPanelListener(PerspCorrectionPanelListener* listener)
+    {
+        panel_listener = listener;
+    }
     void setMetadata (const rtengine::FramesMetaData* metadata);
     void switchOffEditMode (void);
     void trimValues          (rtengine::procparams::ProcParams* pp) override;
diff --git a/rtgui/toolbar.cc b/rtgui/toolbar.cc
index e642ae51b..5cdfc2787 100644
--- a/rtgui/toolbar.cc
+++ b/rtgui/toolbar.cc
@@ -77,6 +77,12 @@ ToolBar::ToolBar () : showColPickers(true), listener (nullptr), pickerListener(n
 
     pack_start (*straTool);
 
+    perspTool = Gtk::manage(new Gtk::ToggleButton());
+    Gtk::Image* perspimg = Gtk::manage(new RTImage("perspective-vertical-bottom.png"));
+    perspTool->set_image(*perspimg);
+    perspTool->set_relief(Gtk::RELIEF_NONE);
+    pack_start(*perspTool);
+
 
     handTool->set_active (true);
     current = TMHand;
@@ -87,12 +93,14 @@ ToolBar::ToolBar () : showColPickers(true), listener (nullptr), pickerListener(n
     cpConn   = colPickerTool->signal_button_press_event().connect_notify( sigc::mem_fun(*this, &ToolBar::colPicker_pressed));
     cropConn = cropTool->signal_toggled().connect( sigc::mem_fun(*this, &ToolBar::crop_pressed));
     straConn = straTool->signal_toggled().connect( sigc::mem_fun(*this, &ToolBar::stra_pressed));
+    perspConn = perspTool->signal_toggled().connect( sigc::mem_fun(*this, &ToolBar::persp_pressed));
 
     handTool->set_tooltip_markup (M("TOOLBAR_TOOLTIP_HAND"));
     wbTool->set_tooltip_markup (M("TOOLBAR_TOOLTIP_WB"));
     colPickerTool->set_tooltip_markup (M("TOOLBAR_TOOLTIP_COLORPICKER"));
     cropTool->set_tooltip_markup (M("TOOLBAR_TOOLTIP_CROP"));
     straTool->set_tooltip_markup (M("TOOLBAR_TOOLTIP_STRAIGHTEN"));
+    perspTool->set_tooltip_markup(M("TOOLBAR_TOOLTIP_PERSPECTIVE"));
 }
 
 //
@@ -107,9 +115,10 @@ void ToolBar::setTool (ToolMode tool)
     ConnectionBlocker handBlocker(handConn);
     ConnectionBlocker straBlocker(straConn);
     ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
     ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
-    stopEdit = tool == TMHand && handTool->get_active() && editingMode && !blockEdit;
+    stopEdit = tool == TMHand && (handTool->get_active() || (perspTool && perspTool->get_active())) && editingMode && !blockEdit;
 
     handTool->set_active (false);
 
@@ -122,6 +131,9 @@ void ToolBar::setTool (ToolMode tool)
     if (colPickerTool) {
         colPickerTool->set_active (false);
     }
+    if (perspTool) {
+        perspTool->set_active(false);
+    }
 
     if (tool == TMHand) {
         handTool->set_active (true);
@@ -138,6 +150,12 @@ void ToolBar::setTool (ToolMode tool)
         if (colPickerTool) {
             colPickerTool->set_active (true);
         }
+    } else if (tool == TMPerspective) {
+        if (perspTool) {
+            perspTool->set_active(true);
+            // Perspective is a hand tool, but has its own button.
+            handTool->set_image(*handimg);
+        }
     }
 
     current = tool;
@@ -160,6 +178,7 @@ void ToolBar::startEditMode()
         ConnectionBlocker handBlocker(handConn);
         ConnectionBlocker straBlocker(straConn);
         ConnectionBlocker cropBlocker(cropConn);
+        ConnectionBlocker perspBlocker(perspConn);
         ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
         if (current != TMHand) {
@@ -172,6 +191,9 @@ void ToolBar::startEditMode()
 
             cropTool->set_active (false);
             straTool->set_active (false);
+            if (perspTool) {
+                perspTool->set_active(false);
+            }
             current = TMHand;
         }
         handTool->set_active (true);
@@ -204,6 +226,7 @@ void ToolBar::hand_pressed ()
     ConnectionBlocker handBlocker(handConn);
     ConnectionBlocker straBlocker(straConn);
     ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
     ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
     if (editingMode && !blockEdit) {
@@ -222,6 +245,9 @@ void ToolBar::hand_pressed ()
 
     cropTool->set_active (false);
     straTool->set_active (false);
+    if (perspTool) {
+        perspTool->set_active(false);
+    }
     handTool->set_active (true);
 
     if (current != TMHand) {
@@ -244,6 +270,7 @@ void ToolBar::wb_pressed ()
     ConnectionBlocker handBlocker(handConn);
     ConnectionBlocker straBlocker(straConn);
     ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
     ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
     if (current != TMSpotWB) {
@@ -256,6 +283,9 @@ void ToolBar::wb_pressed ()
         handTool->set_active (false);
         cropTool->set_active (false);
         straTool->set_active (false);
+        if (perspTool) {
+            perspTool->set_active(false);
+        }
         if (colPickerTool) {
             colPickerTool->set_active(false);
         }
@@ -288,6 +318,9 @@ void ToolBar::colPicker_pressed (GdkEventButton* event)
             wbTool->set_active (false);
         }
         straTool->set_active (false);
+        if (perspTool) {
+            perspTool->set_active(false);
+        }
 
         if (current != TMColorPicker) {
             // Disabling all other tools, enabling the Picker tool and entering the "visible pickers" mode
@@ -359,6 +392,7 @@ void ToolBar::crop_pressed ()
     ConnectionBlocker handBlocker(handConn);
     ConnectionBlocker straBlocker(straConn);
     ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
     ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
     if (editingMode) {
@@ -376,6 +410,9 @@ void ToolBar::crop_pressed ()
     }
 
     straTool->set_active (false);
+    if (perspTool) {
+        perspTool->set_active(false);
+    }
     cropTool->set_active (true);
 
     if (current != TMCropSelect) {
@@ -399,6 +436,7 @@ void ToolBar::stra_pressed ()
     ConnectionBlocker handBlocker(handConn);
     ConnectionBlocker straBlocker(straConn);
     ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
     ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
 
     if (editingMode) {
@@ -416,6 +454,9 @@ void ToolBar::stra_pressed ()
     }
 
     cropTool->set_active (false);
+    if (perspTool) {
+        perspTool->set_active(false);
+    }
     straTool->set_active (true);
 
     if (current != TMStraighten) {
@@ -432,6 +473,35 @@ void ToolBar::stra_pressed ()
     }
 }
 
+void ToolBar::persp_pressed ()
+{
+    if (listener && !perspTool->get_active()) {
+        listener->toolDeselected(TMPerspective);
+        return;
+    }
+
+    // Unlike other modes, mode switching is handled by the perspective panel.
+    {
+    ConnectionBlocker handBlocker(handConn);
+    ConnectionBlocker straBlocker(straConn);
+    ConnectionBlocker cropBlocker(cropConn);
+    ConnectionBlocker perspBlocker(perspConn);
+    ConnectionBlocker wbWasBlocked(wbTool, wbConn), cpWasBlocked(colPickerTool, cpConn);
+
+    if (editingMode) {
+        stopEditMode();
+        if (listener) {
+            listener->editModeSwitchedOff();
+        }
+    }
+
+    }
+
+    if (listener) {
+        listener->toolSelected(TMPerspective);
+    }
+}
+
 bool ToolBar::handleShortcutKey (GdkEventKey* event)
 {
 
@@ -485,6 +555,11 @@ void ToolBar::setBatchMode()
         removeIfThere(this, colPickerTool, false);
         colPickerTool = nullptr;
     }
+    if (perspTool) {
+        perspConn.disconnect();
+        removeIfThere(this, perspTool, false);
+        perspTool = nullptr;
+    }
 
     allowNoTool = true;
     switch (current) {
diff --git a/rtgui/toolbar.h b/rtgui/toolbar.h
index a4525019f..85a0c3345 100644
--- a/rtgui/toolbar.h
+++ b/rtgui/toolbar.h
@@ -30,6 +30,8 @@ class ToolBarListener
 
 public:
     virtual ~ToolBarListener() = default;
+    /// Callback when a tool is deselected. WARNING: Not yet called for most tools.
+    virtual void toolDeselected(ToolMode tool) = 0;
     /// Callback when a tool is selected
     virtual void toolSelected(ToolMode tool) = 0;
 
@@ -51,6 +53,7 @@ private:
     void colPicker_pressed (GdkEventButton* event);
     void crop_pressed ();
     void stra_pressed ();
+    void persp_pressed ();
     bool showColorPickers(bool showCP);
     void switchColorPickersVisibility();
 
@@ -60,6 +63,7 @@ protected:
     Gtk::ToggleButton* colPickerTool;
     Gtk::ToggleButton* cropTool;
     Gtk::ToggleButton* straTool;
+    Gtk::ToggleButton* perspTool;
     ToolBarListener* listener;
     LockablePickerToolListener* pickerListener;
     ToolMode current;
@@ -71,6 +75,7 @@ protected:
     sigc::connection  cpConn;
     sigc::connection  cropConn;
     sigc::connection  straConn;
+    sigc::connection  perspConn;
 
 public:
     ToolBar ();
diff --git a/rtgui/toolenum.h b/rtgui/toolenum.h
index c3bc873f1..424afca87 100644
--- a/rtgui/toolenum.h
+++ b/rtgui/toolenum.h
@@ -18,4 +18,4 @@
  */
 #pragma once
 
-enum ToolMode {TMNone = -1, TMHand = 0, TMSpotWB = 1, TMCropSelect = 2, TMStraighten = 3, TMColorPicker = 4};
+enum ToolMode {TMNone = -1, TMHand = 0, TMSpotWB = 1, TMCropSelect = 2, TMStraighten = 3, TMColorPicker = 4, TMPerspective = 5};
diff --git a/rtgui/toolpanelcoord.cc b/rtgui/toolpanelcoord.cc
index d25d6414d..1f4ccce06 100644
--- a/rtgui/toolpanelcoord.cc
+++ b/rtgui/toolpanelcoord.cc
@@ -282,6 +282,7 @@ ToolPanelCoordinator::ToolPanelCoordinator (bool batch) : ipc (nullptr), favorit
     lensgeom->setLensGeomListener(this);
     rotate->setLensGeomListener(this);
     perspective->setLensGeomListener(this);
+    perspective->setPerspCorrectionPanelListener(this);
     distortion->setLensGeomListener(this);
     crop->setCropPanelListener(this);
     icm->setICMPanelListener(this);
@@ -1045,6 +1046,17 @@ void ToolPanelCoordinator::cropSelectRequested()
     toolBar->setTool(TMCropSelect);
 }
 
+void ToolPanelCoordinator::controlLineEditModeChanged(bool active)
+{
+    if (!ipc) {
+        return;
+    }
+
+    if (active) {
+        toolBar->setTool(TMPerspective);
+    }
+}
+
 void ToolPanelCoordinator::saveInputICCReference(const Glib::ustring& fname, bool apply_wb)
 {
     if (ipc) {
@@ -1172,6 +1184,13 @@ void ToolPanelCoordinator::updateTPVScrollbar(bool hide)
     updateVScrollbars(hide);
 }
 
+void ToolPanelCoordinator::toolDeselected(ToolMode tool)
+{
+    if (tool == TMPerspective) {
+        perspective->requestApplyControlLines();
+    }
+}
+
 void ToolPanelCoordinator::toolSelected(ToolMode tool)
 {
     GThreadLock lock; // All GUI access from idle_add callbacks or separate thread HAVE to be protected
@@ -1216,6 +1235,20 @@ void ToolPanelCoordinator::toolSelected(ToolMode tool)
             break;
         }
 
+        case TMPerspective: {
+            toolBar->blockEditDeactivation(false); // To allow deactivating Locallab when switching to another tool using toolbar
+            perspective->setControlLineEditMode(true);
+            perspective->setExpanded(true);
+            bool isFavorite = checkFavorite(perspective);
+            if (!isFavorite) {
+                isFavorite = checkFavorite(lensgeom);
+                lensgeom->setExpanded(true);
+            }
+            toolPanelNotebook->set_current_page(toolPanelNotebook->page_num(isFavorite ? *favoritePanelSW : *transformPanelSW));
+            prevPage = toolPanelNotebook->get_nth_page(toolPanelNotebook->get_current_page()); // Updating prevPage as "signal_switch_page" event
+            break;
+        }
+
         default:
             break;
     }
diff --git a/rtgui/toolpanelcoord.h b/rtgui/toolpanelcoord.h
index 3889e786c..0dcee59eb 100644
--- a/rtgui/toolpanelcoord.h
+++ b/rtgui/toolpanelcoord.h
@@ -102,6 +102,7 @@ class ToolPanelCoordinator :
     public LensGeomListener,
     public SpotWBListener,
     public CropPanelListener,
+    public PerspCorrectionPanelListener,
     public ICMPanelListener,
     public ImageAreaToolListener,
     public rtengine::ImageTypeListener,
@@ -323,6 +324,9 @@ public:
     // croppanellistener interface
     void cropSelectRequested () override;
 
+    // PerspCorrectionPanelListener interface
+    void controlLineEditModeChanged(bool active) override;
+
     // icmpanellistener interface
     void saveInputICCReference(const Glib::ustring& fname, bool apply_wb) override;
 
@@ -339,6 +343,7 @@ public:
     bool handleShortcutKey(GdkEventKey* event);
 
     // ToolBarListener interface
+    void toolDeselected(ToolMode tool) override;
     void toolSelected (ToolMode tool) override;
     void editModeSwitchedOff () final;