Expose tf.shape() API.

src/TensorFlowNET.Core/APIs/tf.array.cs

@@ -124,5 +124,15 @@ namespace Tensorflow
         /// <returns>A `Tensor`. Has the same type as `input`.</returns>
         public Tensor placeholder_with_default<T>(T input, int[] shape, string name = null)
             => gen_array_ops.placeholder_with_default(input, shape, name: name);
+
+        /// <summary>
+        /// Returns the shape of a tensor.
+        /// </summary>
+        /// <param name="input"></param>
+        /// <param name="name"></param>
+        /// <param name="out_type"></param>
+        /// <returns></returns>
+        public Tensor shape(Tensor input, string name = null, TF_DataType out_type = TF_DataType.TF_INT32)
+            => array_ops.shape_internal(input, name, optimize: true, out_type: out_type);
     }
 }

src/TensorFlowNET.Core/Operations/array_ops.py.cs

@@ -338,7 +338,7 @@ namespace Tensorflow
         public static Tensor size(Tensor input, string name = null, bool optimize = true, TF_DataType out_type = TF_DataType.TF_INT32)
             => size_internal(input, name, optimize: optimize, out_type: out_type);
 
-        private static Tensor shape_internal(Tensor input, string name = null, bool optimize = true, TF_DataType out_type = TF_DataType.TF_INT32)
+        public static Tensor shape_internal(Tensor input, string name = null, bool optimize = true, TF_DataType out_type = TF_DataType.TF_INT32)
         {
             return tf_with(ops.name_scope(name, "Shape", new { input }), scope =>
             {

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.
+8. Add tf.random_normal, tf.constant, tf.pad, tf.shape.
 9. MultiThread is safe.</PackageReleaseNotes>
     <LangVersion>7.3</LangVersion>
     <FileVersion>0.11.2.0</FileVersion>

test/TensorFlowNET.Examples/ImageProcessing/YOLO/common.cs

@@ -65,11 +65,14 @@ namespace TensorFlowNET.Examples.ImageProcessing.YOLO
             Tensor output = null;
             if (method == "resize")
             {
-
+                tf_with(tf.variable_scope(name), delegate
+                {
+                    var input_shape = tf.shape(input_data);
+                });
             }
             else if(method == "deconv")
             {
-
+                throw new NotImplementedException("upsample.deconv");
             }
 
             return output;

test/TensorFlowNET.UnitTest/ImageTest.cs

@@ -14,10 +14,11 @@ namespace TensorFlowNET.UnitTest
     [TestClass]
     public class ImageTest
     {
-        string imgPath = "../../../../../data/shasta-daisy.jpg";
+        string imgPath = "shasta-daisy.jpg";
         Tensor contents;
 
-        public ImageTest()
+        [TestInitialize]
+        public void Initialize()
         {
             imgPath = Path.GetFullPath(imgPath);
             contents = tf.read_file(imgPath);