/// <summary>
/// Load the trained detector from files
/// </summary>
/// <param name="fileNames">The names of the trained latent svm file</param>
/// <param name="classNames">The names of the class</param>
public LatentSvmDetector(String[] fileNames, String[] classNames = null)
{
CvString[] fileNameStrings = new CvString[fileNames.Length];
for (int i = 0; i < fileNames.Length ;i++)
fileNameStrings[i] = new CvString(fileNames[i]);
CvString[] classNameStrings = null;
if (classNames != null)
{
classNameStrings = new CvString[classNames.Length];
for (int i = 0; i < classNames.Length; i++)
classNameStrings[i] = new CvString(classNames[i]);
}
try
{
using (VectorOfCvString fvcs = new VectorOfCvString(fileNameStrings))
using (VectorOfCvString cvcs = new VectorOfCvString())
{
if (classNameStrings != null)
cvcs.Push(classNameStrings);
_ptr = cveLSVMDetectorCreate(fvcs, cvcs);
}
}
finally
{
for (int i = 0; i < fileNameStrings.Length; i++)
fileNameStrings[i].Dispose();
if (classNameStrings != null)
for (int i = 0; i < classNameStrings.Length; i++)
classNameStrings[i].Dispose();
}
}
/// <summary>
/// Decodes barcode in image once it's found by the detect() method.
/// </summary>
/// <param name="image">grayscale or color (BGR) image containing bar code.</param>
/// <param name="points">vector of rotated rectangle vertices found by detect() method (or some other algorithm).</param>
/// <param name="decodedInfo">UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.</param>
/// <param name="decodedType">vector of BarcodeType, specifies the type of these barcodes</param>
/// <returns>True if decode is successful</returns>
public bool Decode(IInputArray image, IInputArray points, VectorOfCvString decodedInfo, VectorOfInt decodedType)
{
using (InputArray iaImage = image.GetInputArray())
using (InputArray iaPoints = points.GetInputArray())
{
return(BarcodeInvoke.cveBarcodeDetectorDecode(_ptr, iaImage, iaPoints, decodedInfo, decodedType));
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public string[] GetLayerNames()
{
using (var namesVec = new VectorOfCvString())
{
NativeMethods.dnn_Net_getLayerNames(ptr, namesVec.CvPtr);
GC.KeepAlive(this);
return(namesVec.ToArray());
}
}
/// <summary>
/// Given the input frame, create input blob, run net and return recognition result.
/// </summary>
/// <param name="frame">The input image</param>
/// <param name="roiRects">Vector of text detection regions of interest (Rect, CV_32SC4). ROIs is be cropped as the network inputs</param>
/// <returns>A set of text recognition results.</returns>
public String[] Recognize(IInputArray frame, IInputArrayOfArrays roiRects)
{
using (VectorOfCvString vs = new VectorOfCvString())
using (InputArray iaFrame = frame.GetInputArray())
using (InputArray iaRoiRects = roiRects.GetInputArray())
{
DnnInvoke.cveDnnTextRecognitionModelRecognize2(_ptr, iaFrame, iaRoiRects, vs);
return(vs.ToArray());
}
}
/// <summary>
/// Decodes QR codes in image once it's found by the detect() method.
/// </summary>
/// <param name="img">Grayscale or color (BGR) image containing QR codes.</param>
/// <param name="points">Vector of Quadrangle vertices found by detect() method (or some other algorithm).</param>
/// <param name="decodedInfo">UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.</param>
/// <param name="straightQrcode">The optional output vector of images containing rectified and binarized QR codes</param>
/// <returns>True if decoding is successful.</returns>
public bool DecodeMulti(
IInputArray img,
IInputArray points,
VectorOfCvString decodedInfo,
IOutputArray straightQrcode = null)
{
using (InputArray iaImg = img.GetInputArray())
using (InputArray iaPoints = points.GetInputArray())
using (OutputArray oaStraightQrcode =
(straightQrcode == null ? OutputArray.GetEmpty() : straightQrcode.GetOutputArray()))
{
return(CvInvoke.cveQRCodeDetectorDecodeMulti(_ptr, iaImg, iaPoints, decodedInfo, oaStraightQrcode));
}
}
/// <summary>
/// Both detects and decodes barcode
/// </summary>
/// <param name="image">grayscale or color (BGR) image containing barcode.</param>
/// <param name="decodedInfo">UTF8-encoded output vector of string(s) or empty vector of string if the codes cannot be decoded.</param>
/// <param name="decodedType">vector of BarcodeType, specifies the type of these barcodes</param>
/// <param name="points">Optional output vector of vertices of the found barcode rectangle. Will be empty if not found.</param>
/// <returns>True if barcode is detected and decoded.</returns>
public bool DetectAndDecode(
IInputArray image,
VectorOfCvString decodedInfo,
VectorOfInt decodedType,
IOutputArray points = null)
{
using (InputArray iaImage = image.GetInputArray())
using (OutputArray oaPoints = points == null ? OutputArray.GetEmpty() : points.GetOutputArray())
return(BarcodeInvoke.cveBarcodeDetectorDetectAndDecode(
_ptr,
iaImage,
decodedInfo,
decodedType,
oaPoints));
}
/// <summary>
/// Both detects and decodes QR code.
/// </summary>
/// <param name="img">Supports grayscale or color (BGR) image</param>
/// <param name="points">Optional output array of vertices of the found QR code quadrangle. Will be empty if not found.</param>
/// <returns>The array of decoded string.</returns>
public String[] DetectAndDecode(
IInputArray img,
IOutputArrayOfArrays points)
{
using (InputArray iaImg = img.GetInputArray())
using (OutputArray oaPoints = points == null? OutputArray.GetEmpty() : points.GetOutputArray())
using (VectorOfCvString result = new VectorOfCvString())
{
WeChatQRCodeInvoke.cveWeChatQRCodeDetectAndDecode(
_ptr,
iaImg,
oaPoints,
result);
return(result.ToArray());
}
}
/// <summary>
/// Load the trained detector from files
/// </summary>
/// <param name="fileNames">The names of the trained latent svm file</param>
/// <param name="classNames">The names of the class</param>
public LatentSvmDetector(String[] fileNames, String[] classNames = null)
{
CvString[] fileNameStrings = new CvString[fileNames.Length];
for (int i = 0; i < fileNames.Length; i++)
{
fileNameStrings[i] = new CvString(fileNames[i]);
}
CvString[] classNameStrings = null;
if (classNames != null)
{
classNameStrings = new CvString[classNames.Length];
for (int i = 0; i < classNames.Length; i++)
{
classNameStrings[i] = new CvString(classNames[i]);
}
}
try
{
using (VectorOfCvString fvcs = new VectorOfCvString(fileNameStrings))
using (VectorOfCvString cvcs = new VectorOfCvString())
{
if (classNameStrings != null)
{
cvcs.Push(classNameStrings);
}
_ptr = CvInvoke.cveLSVMDetectorCreate(fvcs, cvcs);
}
}
finally
{
for (int i = 0; i < fileNameStrings.Length; i++)
{
fileNameStrings[i].Dispose();
}
if (classNameStrings != null)
{
for (int i = 0; i < classNameStrings.Length; i++)
{
classNameStrings[i].Dispose();
}
}
}
}
/// <summary>
/// Both detects and decodes barcode
/// </summary>
/// <returns>The barcode found. If nothing is found, an empty array is returned.</returns>
public Barcode[] DetectAndDecode(IInputArray image)
{
using (VectorOfCvString decodedInfoVec = new VectorOfCvString())
using (VectorOfInt decodedTypeVec = new VectorOfInt())
//using (VectorOfMat pointsVec = new VectorOfMat())
//using (VectorOfPointF pointsVec = new VectorOfPointF())
using (Mat pointsVec = new Mat())
{
if (!DetectAndDecode(image, decodedInfoVec, decodedTypeVec, pointsVec))
{
return(new Barcode[0]);
}
PointF[] points = new PointF[4 * pointsVec.Rows];
if (points.Length > 0)
{
GCHandle handle = GCHandle.Alloc(points, GCHandleType.Pinned);
CvInvoke.cveMemcpy(handle.AddrOfPinnedObject(), pointsVec.DataPointer,
points.Length * Marshal.SizeOf <PointF>());
handle.Free();
}
string[] decodedInfo = decodedInfoVec.ToArray();
int[] decodedType = decodedTypeVec.ToArray();
//Point[][] points = WeChatQRCode.VectorOfMatToPoints(pointsVec);
//points = pointsVec.ToArray();
Barcode[] barcodes = new Barcode[decodedInfo.Length];
for (int i = 0; i < barcodes.Length; i++)
{
Barcode barcode = new Barcode();
barcode.DecodedInfo = decodedInfo[i];
barcode.Type = (BarcodeType)decodedType[i];
PointF[] region = new PointF[4];
Array.Copy(points, 4 * i, region, 0, 4);
barcode.Points = region;
barcodes[i] = barcode;
}
return(barcodes);
}
}
/// <summary>
/// Detect objects by template matching. Matches globally at the lowest pyramid level, then refines locally stepping up the pyramid.
/// </summary>
/// <param name="sources">Source images, one for each modality.</param>
/// <param name="threshold">Similarity threshold, a percentage between 0 and 100.</param>
/// <param name="matches">Template matches, sorted by similarity score.</param>
/// <param name="classIds">If non-empty, only search for the desired object classes.</param>
/// <param name="quantizedImages">Optionally return vector<Mat> of quantized images.</param>
/// <param name="masks">The masks for consideration during matching. The masks should be CV_8UC1 where 255 represents a valid pixel. If non-empty, the vector must be the same size as sources. Each element must be empty or the same size as its corresponding source.</param>
public void Match(
VectorOfMat sources,
float threshold,
VectorOfLinemodMatch matches,
VectorOfCvString classIds = null,
IOutputArrayOfArrays quantizedImages = null,
VectorOfMat masks = null)
{
using (OutputArray oaQuantizedImages =
quantizedImages == null ? OutputArray.GetEmpty() : quantizedImages.GetOutputArray())
{
LinemodInvoke.cveLinemodDetectorMatch(
_ptr,
sources,
threshold,
matches,
classIds,
oaQuantizedImages,
masks
);
}
}
/// <summary>
/// Get the list of parameter definitions
/// </summary>
/// <param name="algorithm">The algorithm to retrieve the parameter list from</param>
/// <returns>The list of parameter definitions</returns>
public static ParamDef[] GetParams(this IAlgorithm algorithm)
{
using (VectorOfCvString names = new VectorOfCvString())
using (VectorOfInt types = new VectorOfInt())
using (VectorOfCvString helps = new VectorOfCvString())
{
CvInvoke.cveAlgorithmGetParams(algorithm.AlgorithmPtr, names, types, helps);
ParamDef[] results = new ParamDef[names.Size];
for (int i = 0; i < results.Length; i++)
{
ParamDef t = new ParamDef();
using (CvString n = names[i])
using (CvString h = helps[i])
{
t.Name = n.ToString();
t.Type = (ParamType)types[i];
t.Help = h.ToString();
}
results[i] = t;
}
return(results);
}
}
/// <summary>
/// Both detects and decodes QR code.
/// </summary>
/// <param name="img">Supports grayscale or color (BGR) image</param>
/// <returns>The detected QRCode.</returns>
public QRCode[] DetectAndDecode(IInputArray img)
{
using (InputArray iaImg = img.GetInputArray())
using (VectorOfMat pointsVec = new VectorOfMat())
using (VectorOfCvString result = new VectorOfCvString())
{
String[] codes = DetectAndDecode(img, pointsVec);
if (codes.Length == 0)
{
return(new QRCode[0]);
}
Point[][] points = WeChatQRCode.VectorOfMatToPoints(pointsVec);
QRCode[] results = new QRCode[codes.Length];
for (int i = 0; i < codes.Length; i++)
{
QRCode c = new QRCode();
c.Code = codes[i];
c.Region = points[i];
results[i] = c;
}
return(results);
}
}
/// <summary>
/// Runs forward pass to compute outputs of layers listed in outBlobNames.
/// </summary>
/// <param name="outputBlobs">Contains blobs for first outputs of specified layers.</param>
/// <param name="outBlobNames">Names for layers which outputs are needed to get</param>
public void Forward(IOutputArrayOfArrays outputBlobs, String[] outBlobNames)
{
using (OutputArray oaOutputBlobs = outputBlobs.GetOutputArray())
using (VectorOfCvString vcs = new VectorOfCvString(outBlobNames))
DnnInvoke.cveDnnNetForward3(_ptr, oaOutputBlobs, vcs);
}
