--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Toolbox/ImageGeometry.h	Thu Mar 15 12:12:01 2018 +0100
@@ -0,0 +1,59 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../Enumerations.h"
+#include "LinearAlgebra.h"
+
+#include <Core/Images/ImageAccessor.h>
+
+
+namespace OrthancStone
+{
+  // Returns the "useful" portion of the target image when applying a
+  // 3x3 perspective transform "a" (i.e. the bounding box where points
+  // of the source image are mapped to)
+  bool GetPerpectiveTransformExtent(unsigned int& x1,
+                                    unsigned int& y1,
+                                    unsigned int& x2,
+                                    unsigned int& y2,
+                                    const Matrix& a,
+                                    unsigned int sourceWidth,
+                                    unsigned int sourceHeight,
+                                    unsigned int targetWidth,
+                                    unsigned int targetHeight);
+
+  void ApplyAffineTransform(Orthanc::ImageAccessor& target,
+                            const Orthanc::ImageAccessor& source,
+                            double a11,
+                            double a12,
+                            double b1,
+                            double a21,
+                            double a22,
+                            double b2,
+                            ImageInterpolation interpolation);
+
+  void ApplyPerspectiveTransform(Orthanc::ImageAccessor& target,
+                                 const Orthanc::ImageAccessor& source,
+                                 const Matrix& a,
+                                 ImageInterpolation interpolation);
+}