private async void ODMainForm_Load(object sender, EventArgs e)
{
try
{
toolStripStatusLabel.Text = "Start to download model and labels";
await DownloadDefaultModelAsync(Program.ModelPath);
await DownloadDefaultTexts(Program.LabelsPath);
toolStripStatusLabel.Text = "Start to load model.";
_catalog = CatalogUtil.ReadCatalogItems(Program.LabelsPath);
_graph = new TFGraph();
var model = File.ReadAllBytes(Program.ModelPath);
_graph.Import(new TFBuffer(model));
_session = new TFSession(_graph);
toolStripStatusLabel.Text = "Initialization done.";
await DrawBoxesAsync(Program.DemoImagePath);
loadPictureToolStripMenuItem.Enabled = true;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error during downloading model and labels",
MessageBoxButtons.OK, MessageBoxIcon.Error);
toolStripStatusLabel.Text = "Error during downloading model and labels";
}
}
// Use this for initialization
IEnumerator Start()
{
#if UNITY_ANDROID
TensorFlowSharp.Android.NativeBinding.Init();
#endif
pixels = new float[INPUT_SIZE * INPUT_SIZE * 3];
_catalog = CatalogUtil.ReadCatalogItems(labelMap.text);
Debug.Log("Loading graph...");
graph = new TFGraph();
graph.Import(model.bytes);
session = new TFSession(graph);
Debug.Log("Graph Loaded!!!");
/*foreach(var i in graph.GetEnumerator())
* {
* Debug.Log(i.Name);
* }*/
//set style of labels and boxes
style.fontSize = 30;
style.contentOffset = new Vector2(0, 50);
style.normal.textColor = objectColor;
// Begin our heavy work on a new thread.
_thread = new Thread(ThreadedWork);
_thread.Start();
//do this to avoid warnings
processingImage = true;
yield return(new WaitForEndOfFrame());
processingImage = false;
}
// Use this for initialization
IEnumerator Start()
{
#if UNITY_ANDROID
TensorFlowSharp.Android.NativeBinding.Init();
#endif
pixels = new byte[INPUT_SIZE * INPUT_SIZE * 3];
_catalog = CatalogUtil.ReadCatalogItems(labelMap.text);
Debug.Log("Loading graph...");
graph = new TFGraph();
graph.Import(model.bytes);
session = new TFSession(graph);
Debug.Log("Graph Loaded!!!");
//set style of labels and boxes
style.normal.background = tex;
style.alignment = TextAnchor.UpperCenter;
style.fontSize = 80;
style.fontStyle = FontStyle.Bold;
style.contentOffset = new Vector2(0, 50);
style.normal.textColor = objectColor;
// Begin our heavy work on a new thread.
_thread = new Thread(ThreadedWork);
_thread.Start();
//do this to avoid warnings
processingImage = true;
yield return(new WaitForEndOfFrame());
processingImage = false;
}
public ObjectRecognizer(byte[] model, string labels)
{
#if UNITY_ANDROID
TensorFlowSharp.Android.NativeBinding.Init();
#endif
_catalog = CatalogUtil.ReadCatalogItems(labels).ToDictionary(l => l.Id);
_graph = new TFGraph();
_graph.Import(new TFBuffer(model));
}
private void doDetect()
{
//options.Parse(args);
if (_catalogPath == null)
{
_catalogPath = DownloadDefaultTexts(_currentDir);
}
if (_modelPath == null)
{
_modelPath = DownloadDefaultModel(_currentDir);
}
_catalog = CatalogUtil.ReadCatalogItems(_catalogPath);
var fileTuples = new List <(string input, string output)>()
{
(_input, _output)
};
string modelFile = _modelPath;
using (var graph = new TFGraph())
{
var model = File.ReadAllBytes(modelFile);
graph.Import(new TFBuffer(model));
using (var session = new TFSession(graph))
{
Console.WriteLine("Detecting objects");
foreach (var tuple in fileTuples)
{
var tensor = ImageUtil.CreateTensorFromImageFile(tuple.input, TFDataType.UInt8);
var runner = session.GetRunner();
runner
.AddInput(graph["image_tensor"][0], tensor)
.Fetch(
graph["detection_boxes"][0],
graph["detection_scores"][0],
graph["detection_classes"][0],
graph["num_detections"][0]);
var output = runner.Run();
var boxes = (float[, , ])output[0].GetValue(jagged: false);
var scores = (float[, ])output[1].GetValue(jagged: false);
var classes = (float[, ])output[2].GetValue(jagged: false);
var num = (float[])output[3].GetValue(jagged: false);
DrawBoxes(boxes, scores, classes, tuple.input, tuple.output, MIN_SCORE_FOR_OBJECT_HIGHLIGHTING);
Console.WriteLine($"Done. See {_output_relative}");
}
}
}
}
void DrawBoxes(float[,,] boxes, float[,] scores, float[,] classes, string inputFile, string outputFile, double minScore)
{
_catalog = CatalogUtil.ReadCatalogItems("object-detection.pbtxt");
var x = boxes.GetLength(0);
var y = boxes.GetLength(1);
var z = boxes.GetLength(2);
float ymin = 0, xmin = 0, ymax = 0, xmax = 0;
using (var editor = new ImageEditor(inputFile, outputFile))
{
for (int i = 0; i < x; i++)
{
for (int j = 0; j < y; j++)
{
if (scores[i, j] < minScore)
{
continue;
}
for (int k = 0; k < z; k++)
{
var box = boxes[i, j, k];
switch (k)
{
case 0:
ymin = box;
break;
case 1:
xmin = box;
break;
case 2:
ymax = box;
break;
case 3:
xmax = box;
break;
}
}
int value = Convert.ToInt32(classes[i, j]);
CatalogItem catalogItem = _catalog.FirstOrDefault(item => item.Id == value);
editor.AddBox(xmin, xmax, ymin, ymax, $"{catalogItem.DisplayName} : {(scores[i, j] * 100).ToString("0")}%");
}
}
}
}
public TFWrapper()
{
//options.Parse(args);
if (_catalogPath == null)
{
_catalogPath = DownloadDefaultTexts(_currentDir);
}
if (_modelPath == null)
{
_modelPath = DownloadDefaultModel(_currentDir);
}
_catalog = CatalogUtil.ReadCatalogItems(_catalogPath);
var fileTuples = new List <(string input, string output)>()
{
(_input, _output)
};
graph = new TFGraph();
var model = File.ReadAllBytes(_modelPath);
graph.Import(new TFBuffer(model));
session = new TFSession(graph);
var runner = session.GetRunner();
runner
.AddInput(graph["image_tensor"][0], ImageUtil.CreateTensorFromImageFile(fileTuples[0].input, TFDataType.UInt8))
.Fetch(
graph["detection_boxes"][0],
graph["detection_scores"][0],
graph["detection_classes"][0],
graph["num_detections"][0]);
TFTensor[] output = null;
output = runner.Run();
}
// Use this for initialization
void Start()
{
#if UNITY_ANDROID
TensorFlowSharp.Android.NativeBinding.Init();
#endif
pixels = new byte[INPUT_SIZE * INPUT_SIZE * 3];
_catalog = CatalogUtil.ReadCatalogItems(labelMap.text);
graph = new TFGraph();
graph.Import(model.bytes);
session = new TFSession(graph);
style.normal.background = tex;
style.alignment = TextAnchor.UpperCenter;
style.fontSize = 80;
style.fontStyle = FontStyle.Bold;
style.contentOffset = new Vector2(0, 50);
style.normal.textColor = objectColor;
// Begin our heavy work on a new thread.
_thread = new Thread(ThreadedWork);
_thread.Start();
}
/// <summary>
/// Run the ExampleObjectDetection util from command line. Following options are available:
/// input_image - optional, the path to the image for processing (the default is 'test_images/input.jpg')
/// output_image - optional, the path where the image with detected objects will be saved (the default is 'test_images/output.jpg')
/// catalog - optional, the path to the '*.pbtxt' file (by default, 'mscoco_label_map.pbtxt' been loaded)
/// model - optional, the path to the '*.pb' file (by default, 'frozen_inference_graph.pb' model been used, but you can download any other from here
/// https://github.com/tensorflow/models/blob/master/object_detection/g3doc/detection_model_zoo.md or train your own)
///
/// for instance,
/// ExampleObjectDetection --input_image="/demo/input.jpg" --output_image="/demo/output.jpg" --catalog="/demo/mscoco_label_map.pbtxt" --model="/demo/frozen_inference_graph.pb"
/// </summary>
/// <param name="args"></param>
public static void Main <T> (string [] args, ILogger <T> logger)
{
logger.LogDebug("tensorflow object detection started");
options.Parse(args);
if (_catalogPath == null)
{
_catalogPath = DownloadDefaultTexts(_currentDir);
}
if (_modelPath == null)
{
_modelPath = DownloadDefaultModel(_currentDir);
}
logger.LogDebug("reading catalog items");
_catalog = CatalogUtil.ReadCatalogItems(_catalogPath);
logger.LogDebug("catalog items read");
logger.LogDebug("input: {0} output: {1}", _input, _output);
var fileTuples = new List <(string input, string output)> ()
{
(_input, _output)
};
string modelFile = _modelPath;
logger.LogDebug("running tensorflow");
using (var graph = new TFGraph())
{
logger.LogDebug("tensorflow graph created");
var model = File.ReadAllBytes(modelFile);
graph.Import(new TFBuffer(model));
logger.LogDebug("tensorflow model imported");
using (var session = new TFSession(graph)) {
foreach (var tuple in fileTuples)
{
var tensor = ImageUtil.CreateTensorFromImageFile(tuple.input, TFDataType.UInt8);
var runner = session.GetRunner();
runner
.AddInput(graph ["image_tensor"] [0], tensor)
.Fetch(
graph ["detection_boxes"] [0],
graph ["detection_scores"] [0],
graph ["detection_classes"] [0],
graph ["num_detections"] [0]);
logger.LogDebug("before session run");
var output = runner.Run();
logger.LogDebug("session run finished");
var boxes = (float [, , ])output [0].GetValue(jagged: false);
var scores = (float [, ])output [1].GetValue(jagged: false);
var classes = (float [, ])output [2].GetValue(jagged: false);
var num = (float [])output [3].GetValue(jagged: false);
logger.LogDebug("drawing boxes");
DrawBoxes(boxes, scores, classes, tuple.input, tuple.output, MIN_SCORE_FOR_OBJECT_HIGHLIGHTING);
logger.LogDebug("boxes are drawn");
}
}
}
logger.LogDebug("tensorflow object detection completed");
}
/// <summary>
/// The utility processes the image and produces output image highlighting detected objects on it.
/// You need to proceed following steps to get the example working:
/// 1. Download and unzip one of trained models from
/// https://github.com/tensorflow/models/blob/master/object_detection/g3doc/detection_model_zoo.md
///
/// for instance 'faster_rcnn_inception_resnet_v2_atrous_coco'
/// 2. Download mscoco_label_map.pbtxt from
/// https://github.com/tensorflow/models/blob/master/object_detection/data/mscoco_label_map.pbtxt
///
/// 3. Run the ExampleObjectDetection util from command line specifying input_image, output_image, catalog and model options
/// where input_image - the path to the image for processing
/// output_image - the path where the image with detected objects will be saved
/// catalog - the path to the 'mscoco_label_map.pbtxt' file (see 2)
/// model - the path to the 'frozen_inference_graph.pb' file (see 1)
///
/// for instance,
/// ExampleObjectDetection --input_image="/demo/input.jpg" --output_image="/demo/output.jpg" --catalog="/demo/mscoco_label_map.pbtxt" --model="/demo/frozen_inference_graph.pb"
/// </summary>
/// <param name="args"></param>
static void Main(string [] args)
{
options.Parse(args);
if (_input == null)
{
throw new ArgumentException("Missing required option --input_image=");
}
if (_output == null)
{
throw new ArgumentException("Missing required option --output_image=");
}
if (_catalogPath == null)
{
throw new ArgumentException("Missing required option --catalog=");
}
if (_modelPath == null)
{
throw new ArgumentException("Missing required option --model=");
}
_catalog = CatalogUtil.ReadCatalogItems(_catalogPath);
var fileTuples = new List <(string input, string output)> ()
{
(_input, _output)
};
string modelFile = _modelPath;
using (var graph = new TFGraph()) {
var model = File.ReadAllBytes(modelFile);
graph.Import(new TFBuffer(model));
using (var session = new TFSession(graph)) {
foreach (var tuple in fileTuples)
{
var tensor = ImageUtil.CreateTensorFromImageFile(tuple.input, TFDataType.UInt8);
var runner = session.GetRunner();
runner
.AddInput(graph ["image_tensor"] [0], tensor)
.Fetch(
graph ["detection_boxes"] [0],
graph ["detection_scores"] [0],
graph ["detection_classes"] [0],
graph ["num_detections"] [0]);
var output = runner.Run();
var boxes = (float [, , ])output [0].GetValue(jagged: false);
var scores = (float [, ])output [1].GetValue(jagged: false);
var classes = (float [, ])output [2].GetValue(jagged: false);
var num = (float [])output [3].GetValue(jagged: false);
DrawBoxes(boxes, scores, classes, tuple.input, tuple.output, MIN_SCORE_FOR_OBJECT_HIGHLIGHTING);
}
}
}
}
static void Main()
{
var img = Cv2.ImRead(_input);
Catalog = CatalogUtil.ReadCatalogItems(_catalogPath);
var fileTuples = new List <(string input, string output)> {
(_input, _output)
};
string modelFile = _modelPath;
using (var graph = new TFGraph())
{
var model = File.ReadAllBytes(modelFile);
graph.Import(new TFBuffer(model));
using (var session = new TFSession(graph))
{
foreach (var tuple in fileTuples)
{
var tensor = ImageUtil.CreateTensorFromImageFile(tuple.input, TFDataType.UInt8);
var runner = session.GetRunner();
runner
.AddInput(graph["image_tensor"][0], tensor)
.Fetch(
graph["detection_boxes"][0],
graph["detection_scores"][0],
graph["detection_classes"][0],
graph["num_detections"][0]);
Stopwatch sw = new Stopwatch();
sw.Start();
var output = runner.Run();
sw.Stop();
Console.WriteLine($"Runtime:{sw.ElapsedMilliseconds} ms");
var boxes = (float[, , ])output[0].GetValue(jagged: false);
var scores = (float[, ])output[1].GetValue(jagged: false);
var classes = (float[, ])output[2].GetValue(jagged: false);
var num = (float[])output[3].GetValue(jagged: false);
#region show image
for (int i = 0; i < boxes.GetLength(1); i++)
{
if (scores[0, i] > 0.5)
{
var idx = Convert.ToInt32(classes[0, i]);
var x1 = (int)(boxes[0, i, 1] * img.Width);
var y1 = (int)(boxes[0, i, 0] * img.Height);
var x2 = (int)(boxes[0, i, 3] * img.Width);
var y2 = (int)(boxes[0, i, 2] * img.Height);
var catalog = Catalog.First(x => x.Id == idx);
string label = $"{(catalog == null ? idx.ToString() : catalog.DisplayName)}: {scores[0, i] * 100:0.00}%";
Console.WriteLine($"{label} {x1} {y1} {x2} {y2}");
Cv2.Rectangle(img, new Rect(x1, y1, x2 - x1, y2 - y1), Scalar.Red, 2);
int baseline;
var textSize = Cv2.GetTextSize(label, HersheyFonts.HersheyTriplex, 0.5, 1, out baseline);
textSize.Height = textSize.Height + baseline / 2;
var y = y1 - textSize.Height < 0 ? y1 + textSize.Height : y1;
Cv2.Rectangle(img, new Rect(x1, y - textSize.Height, textSize.Width, textSize.Height + baseline / 2), Scalar.Red, Cv2.FILLED);
Cv2.PutText(img, label, new Point(x1, y), HersheyFonts.HersheyTriplex, 0.5, Scalar.Black);
}
}
#endregion
}
}
}
using (new Window("image", img))
{
Cv2.WaitKey();
}
}
}
