static void Main(String[] args)
{
// Parse arguments
IDictionary <String, String> parameters = ParseArgs(args);
// Make sur the image is provided using args
if (!parameters.ContainsKey("--image"))
{
Console.Error.WriteLine("--image required");
throw new Exception("--image required");
}
// Extract assets folder
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#assets-folder
String assetsFolder = parameters.ContainsKey("--assets")
? parameters["--assets"] : String.Empty;
// Charset - Optional
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#charset
String charsetAkaAlphabet = parameters.ContainsKey("--charset")
? parameters["--charset"] : CONFIG_CHARSET;
// License data - Optional
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#license-token-data
String tokenDataBase64 = parameters.ContainsKey("--tokendata")
? parameters["--tokendata"] : String.Empty;
// Initialize the engine: Load deep learning models and init GPU shaders
// Make sure de disable VS hosting process to see logs from native code: https://social.msdn.microsoft.com/Forums/en-US/5da6cdb2-bc2b-4fff-8adf-752b32143dae/printf-from-dll-in-console-app-in-visual-studio-c-2010-express-does-not-output-to-console-window?forum=Vsexpressvcs
// This function should be called once.
// https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine4initEPKcPK34UltAlprSdkParallelDeliveryCallback
UltAlprSdkResult result = CheckResult("Init", UltAlprSdkEngine.init(BuildJSON(charsetAkaAlphabet, assetsFolder, tokenDataBase64)));
// Decode the JPEG/PNG/BMP file
String file = parameters["--image"];
if (!System.IO.File.Exists(file))
{
throw new System.IO.FileNotFoundException("File not found:" + file);
}
Bitmap image = new Bitmap(file);
if (Image.GetPixelFormatSize(image.PixelFormat) == 24 && ((image.Width * 3) & 3) != 0)
{
//!\\ Not DWORD aligned -> the stride will be multiple of 4-bytes instead of 3-bytes
// ultimateMICR requires stride to be in samples unit instead of in bytes
Console.Error.WriteLine(String.Format("//!\\ The image width ({0}) not a multiple of DWORD.", image.Width));
image = new Bitmap(image, new Size((image.Width + 3) & -4, image.Height));
}
int bytesPerPixel = Image.GetPixelFormatSize(image.PixelFormat) >> 3;
if (bytesPerPixel != 1 && bytesPerPixel != 3 && bytesPerPixel != 4)
{
throw new System.Exception("Invalid BPP:" + bytesPerPixel);
}
// Extract Exif orientation
const int ExifOrientationTagId = 0x112;
int orientation = 1;
if (Array.IndexOf(image.PropertyIdList, ExifOrientationTagId) > -1)
{
int orientation_ = image.GetPropertyItem(ExifOrientationTagId).Value[0];
if (orientation_ >= 1 && orientation_ <= 8)
{
orientation = orientation_;
}
}
// Processing: Detection + recognition
// First inference is expected to be slow (deep learning models mapping to CPU/GPU memory)
BitmapData imageData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, image.PixelFormat);
try
{
// For packed formats (RGB-family): https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine7processEK22ULTALPR_SDK_IMAGE_TYPEPKvK6size_tK6size_tK6size_tKi
// For YUV formats (data from camera): https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine7processEK22ULTALPR_SDK_IMAGE_TYPEPKvPKvPKvK6size_tK6size_tK6size_tK6size_tK6size_tK6size_tKi
result = CheckResult("Process", UltAlprSdkEngine.process(
(bytesPerPixel == 1) ? ULTALPR_SDK_IMAGE_TYPE.ULTALPR_SDK_IMAGE_TYPE_Y : (bytesPerPixel == 4 ? ULTALPR_SDK_IMAGE_TYPE.ULTALPR_SDK_IMAGE_TYPE_BGRA32 : ULTALPR_SDK_IMAGE_TYPE.ULTALPR_SDK_IMAGE_TYPE_BGR24),
imageData.Scan0,
(uint)imageData.Width,
(uint)imageData.Height,
(uint)(imageData.Stride / bytesPerPixel),
orientation
));
// Print result to console
Console.WriteLine("Result: {0}", result.json());
}
finally
{
image.UnlockBits(imageData);
}
// Write until user press a key
Console.WriteLine("Press any key to terminate !!");
Console.Read();
// Now that you're done, deInit the engine before exiting
CheckResult("DeInit", UltAlprSdkEngine.deInit());
}
static UltAlprSdkResult CheckResult(String functionName, UltAlprSdkResult result)
{
if (!result.isOK())
{
String errMessage = String.Format("{0}: Execution failed: {1}", new String[] { functionName, result.json() });
Console.Error.WriteLine(errMessage);
throw new Exception(errMessage);
}
return(result);
}
static void Main(String[] args)
{
// Parse arguments
IDictionary <String, String> parameters = ParseArgs(args);
// Make sur the image is provided using args
if (!parameters.ContainsKey("--image"))
{
Console.Error.WriteLine("--image required");
throw new Exception("--image required");
}
// Extract assets folder
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#assets-folder
String assetsFolder = parameters.ContainsKey("--assets")
? parameters["--assets"] : String.Empty;
// Charset - Optional
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#charset
String charsetAkaAlphabet = parameters.ContainsKey("--charset")
? parameters["--charset"] : CONFIG_CHARSET;
// License data - Optional
// https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#license-token-data
String tokenDataBase64 = parameters.ContainsKey("--tokendata")
? parameters["--tokendata"] : String.Empty;
// Initialize the engine: Load deep learning models and init GPU shaders
// Make sure de disable VS hosting process to see logs from native code: https://social.msdn.microsoft.com/Forums/en-US/5da6cdb2-bc2b-4fff-8adf-752b32143dae/printf-from-dll-in-console-app-in-visual-studio-c-2010-express-does-not-output-to-console-window?forum=Vsexpressvcs
// This function should be called once.
// https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine4initEPKcPK34UltAlprSdkParallelDeliveryCallback
UltAlprSdkResult result = CheckResult("Init", UltAlprSdkEngine.init(BuildJSON(charsetAkaAlphabet, assetsFolder, tokenDataBase64)));
// Decode the JPEG/PNG/BMP file
String file = parameters["--image"];
if (!System.IO.File.Exists(file))
{
throw new System.IO.FileNotFoundException("File not found:" + file);
}
Bitmap image = new Bitmap(file);
// Processing: Detection + recognition
// First inference is expected to be slow (deep learning models mapping to CPU/GPU memory)
BitmapData imageData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
try
{
// For packed formats (RGB-family): https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine7processEK22ULTALPR_SDK_IMAGE_TYPEPKvK6size_tK6size_tK6size_tKi
// For YUV formats (data from camera): https://www.doubango.org/SDKs/anpr/docs/cpp-api.html#_CPPv4N15ultimateAlprSdk16UltAlprSdkEngine7processEK22ULTALPR_SDK_IMAGE_TYPEPKvPKvPKvK6size_tK6size_tK6size_tK6size_tK6size_tK6size_tKi
result = CheckResult("Process", UltAlprSdkEngine.process(
ULTALPR_SDK_IMAGE_TYPE.ULTALPR_SDK_IMAGE_TYPE_RGB24, // TODO(dmi): not correct. C# image decoder outputs BGR24 instead of RGB24
imageData.Scan0,
(uint)image.Width,
(uint)image.Height
));
// Print result to console
Console.WriteLine("Result: {0}", result.json());
}
finally
{
image.UnlockBits(imageData);
}
// Write until user press a key
Console.WriteLine("Press any key to terminate !!");
Console.Read();
// Now that you're done, deInit the engine before exiting
CheckResult("DeInit", UltAlprSdkEngine.deInit());
}