From e9feec45a5979819f2c2938ea39c120c829e94ea Mon Sep 17 00:00:00 2001
From: Oceania2018 <haiping008@gmail.com>
Date: Sat, 31 Aug 2019 12:12:47 -0500
Subject: [PATCH] Resize images to size using nearest neighbor interpolation.

---
 src/TensorFlowNET.Core/APIs/tf.image.cs         | 16 +++++++++++++++-
 .../Operations/gen_image_ops.py.cs              | 14 ++++++++++++++
 .../Operations/image_ops_impl.cs                | 17 +++++++++++++++++
 .../TensorFlowNET.Core.csproj                   |  2 +-
 4 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/src/TensorFlowNET.Core/APIs/tf.image.cs b/src/TensorFlowNET.Core/APIs/tf.image.cs
index e2e3206b..832010e5 100644
--- a/src/TensorFlowNET.Core/APIs/tf.image.cs
+++ b/src/TensorFlowNET.Core/APIs/tf.image.cs
@@ -54,8 +54,22 @@ namespace Tensorflow
             /// <param name="contents"></param>
             /// <param name="name"></param>
             /// <returns></returns>
-            public static Tensor is_jpeg(Tensor contents, string name = null)
+            public Tensor is_jpeg(Tensor contents, string name = null)
                 => image_ops_impl.is_jpeg(contents, name: name);
+
+            /// <summary>
+            /// Resize `images` to `size` using nearest neighbor interpolation.
+            /// </summary>
+            /// <param name="images"></param>
+            /// <param name="size"></param>
+            /// <param name="align_corners"></param>
+            /// <param name="name"></param>
+            /// <param name="half_pixel_centers"></param>
+            /// <returns></returns>
+            public Tensor resize_nearest_neighbor<Tsize>(Tensor images, Tsize size, bool align_corners = false,
+                string name = null, bool half_pixel_centers = false)
+                => image_ops_impl.resize_nearest_neighbor(images, size, align_corners: align_corners,
+                    name: name, half_pixel_centers: half_pixel_centers);
         }
     }
 }
diff --git a/src/TensorFlowNET.Core/Operations/gen_image_ops.py.cs b/src/TensorFlowNET.Core/Operations/gen_image_ops.py.cs
index 90893815..b052d9d6 100644
--- a/src/TensorFlowNET.Core/Operations/gen_image_ops.py.cs
+++ b/src/TensorFlowNET.Core/Operations/gen_image_ops.py.cs
@@ -169,5 +169,19 @@ namespace Tensorflow
                 return _op.outputs[0];
             }
         }
+
+        public static Tensor resize_nearest_neighbor<Tsize>(Tensor images, Tsize size, bool align_corners = false, 
+            bool half_pixel_centers = false, string name = null)
+        {
+            var op = _op_def_lib._apply_op_helper("ResizeNearestNeighbor", name: name, args: new
+            {
+                images,
+                size,
+                align_corners,
+                half_pixel_centers
+            });
+
+            return op.output;
+        }
     }
 }
diff --git a/src/TensorFlowNET.Core/Operations/image_ops_impl.cs b/src/TensorFlowNET.Core/Operations/image_ops_impl.cs
index 65ed8eb1..6cf9f77e 100644
--- a/src/TensorFlowNET.Core/Operations/image_ops_impl.cs
+++ b/src/TensorFlowNET.Core/Operations/image_ops_impl.cs
@@ -128,5 +128,22 @@ namespace Tensorflow
 
             throw new NotImplementedException("");
         }
+
+        /// <summary>
+        /// Resize `images` to `size` using nearest neighbor interpolation.
+        /// </summary>
+        /// <param name="images"></param>
+        /// <param name="size"></param>
+        /// <param name="align_corners"></param>
+        /// <param name="name"></param>
+        /// <param name="half_pixel_centers"></param>
+        /// <returns></returns>
+        public static Tensor resize_nearest_neighbor<Tsize>(Tensor images, Tsize size, bool align_corners = false, 
+            string name = null, bool half_pixel_centers = false)
+            => gen_image_ops.resize_nearest_neighbor(images: images,
+                  size: size,
+                  align_corners: align_corners,
+                  half_pixel_centers: half_pixel_centers,
+                  name: name);
     }
 }
diff --git a/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj b/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
index c3576350..526ccb8d 100644
--- a/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
+++ b/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
@@ -26,7 +26,7 @@ Docs: https://tensorflownet.readthedocs.io</Description>
 5. Overload session.run(), make syntax simpler.
 6. Add Local Response Normalization.
 7. Add tf.image related APIs.
-8. Add tf.random_normal, tf.constant, tf.pad, tf.shape.
+8. Add tf.random_normal, tf.constant, tf.pad, tf.shape, tf.image.resize_nearest_neighbor.
 9. MultiThread is safe.</PackageReleaseNotes>
     <LangVersion>7.3</LangVersion>
     <FileVersion>0.11.2.0</FileVersion>