├── .gitattributes
├── .gitignore
├── Assets
├── labels.txt
├── model.pb
└── test.jpg
├── CustomVision-TensorFlow.csproj
├── CustomVision-TensorFlow.sln
├── CustomVision.cs
├── ImageUtil.cs
├── Program.cs
├── Properties
├── PublishProfiles
│ └── FolderProfile.pubxml
└── launchSettings.json
└── Readme.md
/.gitattributes:
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
/Assets/labels.txt:
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1 | Agaricus bisporus
2 | Amanica muscaria
3 | Coprinopsis atramentaria
4 | Geastrum triplex
5 | Lycoperdon perlatum
6 | Psilocybe cubensis
7 |
--------------------------------------------------------------------------------
/Assets/model.pb:
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https://raw.githubusercontent.com/daltskin/CustomVision-TensorFlow-CSharp/7629dd883cd3d797c2b14cd99ed2520f80fca500/Assets/model.pb
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/Assets/test.jpg:
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https://raw.githubusercontent.com/daltskin/CustomVision-TensorFlow-CSharp/7629dd883cd3d797c2b14cd99ed2520f80fca500/Assets/test.jpg
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/CustomVision-TensorFlow.csproj:
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1 |
2 |
3 | Exe
4 | netcoreapp2.0
5 | win-x64;ubuntu.16.04-x64
6 |
7 |
8 | 7.1
9 |
10 |
11 | 7.1
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
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/CustomVision-TensorFlow.sln:
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1 |
2 | Microsoft Visual Studio Solution File, Format Version 12.00
3 | # Visual Studio 15
4 | VisualStudioVersion = 15.0.27130.2026
5 | MinimumVisualStudioVersion = 10.0.40219.1
6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CustomVision-TensorFlow", "CustomVision-TensorFlow.csproj", "{71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}"
7 | EndProject
8 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{1054F202-3D0F-4435-9CCD-3A0327F486A4}"
9 | ProjectSection(SolutionItems) = preProject
10 | Readme.md = Readme.md
11 | EndProjectSection
12 | EndProject
13 | Global
14 | GlobalSection(SolutionConfigurationPlatforms) = preSolution
15 | Debug|Any CPU = Debug|Any CPU
16 | Debug|x86 = Debug|x86
17 | Release|Any CPU = Release|Any CPU
18 | Release|x86 = Release|x86
19 | EndGlobalSection
20 | GlobalSection(ProjectConfigurationPlatforms) = postSolution
21 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
22 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Debug|Any CPU.Build.0 = Debug|Any CPU
23 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Debug|x86.ActiveCfg = Debug|Any CPU
24 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Debug|x86.Build.0 = Debug|Any CPU
25 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Release|Any CPU.ActiveCfg = Release|Any CPU
26 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Release|Any CPU.Build.0 = Release|Any CPU
27 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Release|x86.ActiveCfg = Release|Any CPU
28 | {71ED210A-7E66-4DD3-9C2A-2C50B0842BE4}.Release|x86.Build.0 = Release|Any CPU
29 | EndGlobalSection
30 | GlobalSection(SolutionProperties) = preSolution
31 | HideSolutionNode = FALSE
32 | EndGlobalSection
33 | GlobalSection(ExtensibilityGlobals) = postSolution
34 | SolutionGuid = {71AE8E5A-51E2-44D5-9D09-D243BDAE2206}
35 | EndGlobalSection
36 | EndGlobal
37 |
--------------------------------------------------------------------------------
/CustomVision.cs:
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1 | namespace CustomVisionCLI
2 | {
3 | using PowerArgs;
4 | using System;
5 | using System.Diagnostics;
6 | using System.IO;
7 | using TensorFlow;
8 |
9 | [ArgExceptionBehavior(ArgExceptionPolicy.StandardExceptionHandling)]
10 | [TabCompletion(HistoryToSave = 10)]
11 | [ArgExample("CustomVision-TensorFlow.exe -m Assets\\model.pb -l Assets\\labels.txt -t Assets\\test.jpg", "using arguments", Title = "Classify image using relative paths")]
12 | [ArgExample("CustomVision-TensorFlow.exe -m c:\\tensorflow\\model.pb -l c:\\tensorflow\\labels.txt -t c:\\tensorflow\\test.jpg", "using arguments", Title = "Classify image using full filepath")]
13 | public class CustomVision
14 | {
15 | [ArgRequired(PromptIfMissing = true)]
16 | [ArgDescription("CustomVision.ai TensorFlow exported model")]
17 | [ArgShortcut("-m")]
18 | public string TensorFlowModelFilePath { get; set; }
19 |
20 | [ArgRequired(PromptIfMissing = true)]
21 | [ArgDescription("CustomVision.ai TensorFlow exported labels")]
22 | [ArgShortcut("-l")]
23 | public string TensorFlowLabelsFilePath { get; set; }
24 |
25 | [ArgRequired(PromptIfMissing = true)]
26 | [ArgDescription("Image to classify (jpg)")]
27 | [ArgShortcut("-t")]
28 | public string TestImageFilePath { get; set; }
29 |
30 | [HelpHook]
31 | public bool Help { get; set; }
32 |
33 | public void Main()
34 | {
35 | Stopwatch stopwatch = new Stopwatch();
36 | stopwatch.Start();
37 |
38 | var graph = new TFGraph();
39 | var model = File.ReadAllBytes(TensorFlowModelFilePath);
40 | var labels = File.ReadAllLines(TensorFlowLabelsFilePath);
41 | graph.Import(model);
42 |
43 | var bestIdx = 0;
44 | float best = 0;
45 |
46 | using (var session = new TFSession(graph))
47 | {
48 | var tensor = ImageUtil.CreateTensorFromImageFile(TestImageFilePath);
49 | var runner = session.GetRunner();
50 | runner.AddInput(graph["Placeholder"][0], tensor).Fetch(graph["loss"][0]);
51 | var output = runner.Run();
52 | var result = output[0];
53 |
54 | var probabilities = ((float[][])result.GetValue(jagged: true))[0];
55 | for (int i = 0; i < probabilities.Length; i++)
56 | {
57 | if (probabilities[i] > best)
58 | {
59 | bestIdx = i;
60 | best = probabilities[i];
61 | }
62 | }
63 | }
64 |
65 | // fin
66 | stopwatch.Stop();
67 | Console.WriteLine($"{TestImageFilePath} = {labels[bestIdx]} ({best * 100.0}%)");
68 | Console.WriteLine($"Total time: {stopwatch.Elapsed}");
69 | Console.ReadKey();
70 | }
71 | }
72 | }
73 |
--------------------------------------------------------------------------------
/ImageUtil.cs:
--------------------------------------------------------------------------------
1 | namespace TensorFlow
2 | {
3 | using System.IO;
4 |
5 | // Taken and adapted from: https://github.com/migueldeicaza/TensorFlowSharp/blob/master/Examples/ExampleCommon/ImageUtil.cs
6 | public static class ImageUtil
7 | {
8 | // Convert the image in filename to a Tensor suitable as input to the Inception model.
9 | public static TFTensor CreateTensorFromImageFile (string file, TFDataType destinationDataType = TFDataType.Float)
10 | {
11 | var contents = File.ReadAllBytes (file);
12 |
13 | // DecodeJpeg uses a scalar String-valued tensor as input.
14 | var tensor = TFTensor.CreateString (contents);
15 |
16 | // Construct a graph to normalize the image
17 | using (var graph = ConstructGraphToNormalizeImage(out TFOutput input, out TFOutput output, destinationDataType))
18 | {
19 | // Execute that graph to normalize this one image
20 | using (var session = new TFSession(graph))
21 | {
22 | var normalized = session.Run(
23 | inputs: new[] { input },
24 | inputValues: new[] { tensor },
25 | outputs: new[] { output });
26 |
27 | return normalized[0];
28 | }
29 | }
30 | }
31 |
32 | // Additional pointers for using TensorFlow & CustomVision together
33 | // Python: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/label_image/label_image.py
34 | // C++: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/label_image/main.cc
35 | // Java: https://github.com/Azure-Samples/cognitive-services-android-customvision-sample/blob/master/app/src/main/java/demo/tensorflow/org/customvision_sample/MSCognitiveServicesClassifier.java
36 | private static TFGraph ConstructGraphToNormalizeImage (out TFOutput input, out TFOutput output, TFDataType destinationDataType = TFDataType.Float)
37 | {
38 | const int W = 227;
39 | const int H = 227;
40 | const float Scale = 1;
41 |
42 | // Depending on your CustomVision.ai Domain - set appropriate Mean Values (RGB)
43 | // https://github.com/Azure-Samples/cognitive-services-android-customvision-sample for RGB values (in BGR order)
44 | var bgrValues = new TFTensor(new float[] { 104.0f, 117.0f, 123.0f }); // General (Compact) & Landmark (Compact)
45 | //var bgrValues = new TFTensor(0f); // Retail (Compact)
46 |
47 | var graph = new TFGraph ();
48 | input = graph.Placeholder (TFDataType.String);
49 |
50 | var caster = graph.Cast(graph.DecodeJpeg(contents: input, channels: 3), DstT: TFDataType.Float);
51 | var dims_expander = graph.ExpandDims(caster, graph.Const(0, "batch"));
52 | var resized = graph.ResizeBilinear(dims_expander, graph.Const(new int[] { H, W }, "size"));
53 | var resized_mean = graph.Sub(resized, graph.Const(bgrValues, "mean"));
54 | var normalised = graph.Div(resized_mean, graph.Const(Scale));
55 | output = normalised;
56 | return graph;
57 | }
58 | }
59 | }
60 |
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/Program.cs:
--------------------------------------------------------------------------------
1 | namespace CustomVisionCLI
2 | {
3 | using PowerArgs;
4 | public class Program
5 | {
6 | static void Main(string[] args)
7 | {
8 | Args.InvokeMain(args);
9 | }
10 | }
11 | }
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/Properties/PublishProfiles/FolderProfile.pubxml:
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1 |
2 |
6 |
7 |
8 | FileSystem
9 | Release
10 | netcoreapp2.0
11 | bin\Release\PublishOutput
12 | win-x64
13 |
14 |
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/Properties/launchSettings.json:
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1 | {
2 | "profiles": {
3 | "CustomVisionCLI": {
4 | "commandName": "Project",
5 | "commandLineArgs": "-m Assets\\model.pb -l Assets\\labels.txt -t \"Assets\\test.jpg\""
6 | },
7 | "CustomVision-TensorFlow-CSharp": {
8 | "commandName": "Executable"
9 | }
10 | }
11 | }
--------------------------------------------------------------------------------
/Readme.md:
--------------------------------------------------------------------------------
1 | # CustomVision.ai TensorFlow CLI - Offline image classification using C#
2 | Cross platform CLI to run a pre-trained model exported from [CustomVision.ai](https://CustomVision.ai) in the Tensorflow format for image classification using the [TensorFlowSharp library](https://github.com/migueldeicaza/TensorFlowSharp).
3 |
4 | To learn more about Microsoft Cognitive Custom Vision Service, please see here: https://azure.microsoft.com/en-gb/services/cognitive-services/custom-vision-service/
5 |
6 |
7 | ## Mean Values (RGB)
8 | Depending on the [CustomVision.ai](https://CustomVision.ai) model's Domain, you'll need to set the appropriate values within the code:
9 |
10 | | Project's Domain | Mean Values (RGB) |
11 | |----|----|
12 | |General (Compact) | (123, 117, 104) |
13 | | Landmark (Compact) | (123, 117, 104) |
14 | | Retail (Compact) | (0, 0, 0) |
15 |
16 | These are set in BGR eg:
17 |
18 | ```
19 | // General (Compact)
20 | // Landmark (Compact)
21 | var bgrValues = new TFTensor(new float[] { 104.0f, 117.0f, 123.0f });
22 | ```
23 |
24 | ```
25 | // Retail (Compact)
26 | var bgrValues = new TFTensor(0f);
27 | ```
28 |
29 | ## CLI Arguments
30 |
31 | | Argument name | shortcut | example |
32 | |----|----|----|
33 | | TensorFlowModelFilePath | -m | Assets\model.pb |
34 | | TensorFlowLabelsFilePath | -l | Assets\labels.txt |
35 | | TestImageFilePath | -t | Assets\test.jpg |
36 |
37 | ## Usage
38 | - Open the solution
39 | - Restore Nuget Packages
40 | - Run & enjoy
41 |
42 | In case you see the following error:
43 |
44 | *Unhandled Exception: System.DllNotFoundException: Unable to load DLL 'libtensorflow': The specified module could not be found.*
45 |
46 | Copy the libtensorflow.dll file from the relevant %userprofile%\.nuget\packages\tensorflowsharp runtimes folder of your OS into the same folder as the compiled executable.
47 |
48 | ### Image classification
49 | The sample TensorFlow model (exported from CustomVision.ai) is for [mushroom classification](https://blogs.msdn.microsoft.com/jamiedalton/2018/01/30/custom-vision-model-for-mushroom-classification-using-bing-images/)
50 | ```
51 | CustomVision-TensorFlow.exe -m Assets\model.pb -l Assets\labels.txt -t Assets\test.jpg
52 | ```
53 |
54 | ### Output
55 | Running the above from the command line will display the following:
56 | ```
57 | I tensorflow/core/platform/cpu_feature_guard.cc:137] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX AVX2
58 | C:\Github\CustomVision-TensorFlow-CSharp\Assets\test.jpg = Agaricus bisporus (92.7477061748505%)
59 | Total time: 00:00:00.4987094
60 | ```
61 |
62 | ### Resources
63 | - Link to [Custom Vision Service Documentation](https://docs.microsoft.com/en-us/azure/cognitive-services/custom-vision-service/home)
64 | - Link to [Custom Vision with Android](https://github.com/Azure-Samples/cognitive-services-android-customvision-sample)
65 | - Link to [TensorFlow documentation](https://www.tensorflow.org/mobile/)
66 | - Link to [TensorFlowSharp](https://github.com/migueldeicaza/TensorFlowSharp)
67 | - Link to [TensorFlow example code using Python](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/label_image/label_image.py)
68 | - Link to [TensorFlow example code using C++](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/label_image/main.cc)
69 | - Link to [TensorFlow example code using Java](https://github.com/Azure-Samples/cognitive-services-android-customvision-sample/blob/master/app/src/main/java/demo/tensorflow/org/customvision_sample/MSCognitiveServicesClassifier.java)
70 |
71 |
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