/// <summary>
/// 该接口目前仅支持单人脸IR活体检测（不支持年龄、性别、3D角度的检测），默认取第一张人脸
/// </summary>
/// <param name="pEngine">引擎handle</param>
/// <param name="imageFormat">图像格式</param>
/// <param name="image">图片</param>
/// <param name="multiFaceInfo">人脸框信息</param>
/// <param name="combinedMask">检测属性</param>
/// <returns>返回0表示正常；返回负数请根据ErrorCodeUtil类注释查看；其他值请在官网-帮助中心查询</returns>
public int ASFProcess_IR(Image image, MultiFaceInfo multiFaceInfo, int combinedMask, ASF_ImagePixelFormat imageFormat = ASF_ImagePixelFormat.ASVL_PAF_GRAY)
{
int retCode = -1;
if (multiFaceInfo == null)
{
return(ErrorCodeUtil.MULPTIFACEINFO_IS_NULL);
}
if (image == null)
{
return(ErrorCodeUtil.IMAGE_IS_NULL);
}
ImageInfo imageInfo = new ImageInfo();
imageInfo = ASF_ImagePixelFormat.ASVL_PAF_RGB24_B8G8R8.Equals(imageFormat) ? ImageUtil.ReadBMP(image) : ImageUtil.ReadBMP_IR(image);
if (imageInfo == null)
{
return(ErrorCodeUtil.IMAGE_DATA_READ_FAIL);
}
//转化多人脸信息
ASF_MultiFaceInfo multiFaceInfoStruct = new ASF_MultiFaceInfo();
IntPtr pMultiFaceInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_MultiFaceInfo>());
multiFaceInfoStruct.faceNum = multiFaceInfo.faceNum;
if (multiFaceInfo.faceNum > 0)
{
if (multiFaceInfo.faceID != null)
{
multiFaceInfoStruct.faceID = MemoryUtil.Malloc(multiFaceInfo.faceNum * MemoryUtil.SizeOf <int>());
Marshal.Copy(multiFaceInfo.faceID, 0, multiFaceInfoStruct.faceID, multiFaceInfo.faceNum);
}
multiFaceInfoStruct.faceOrients = MemoryUtil.Malloc(multiFaceInfo.faceNum * MemoryUtil.SizeOf <int>());
Marshal.Copy(multiFaceInfo.faceOrients, 0, multiFaceInfoStruct.faceOrients, multiFaceInfo.faceNum);
multiFaceInfoStruct.faceRects = MemoryUtil.Malloc(MemoryUtil.SizeOf <MRECT>() * multiFaceInfo.faceNum);
byte[] allByte = new byte[MemoryUtil.SizeOf <MRECT>() * multiFaceInfo.faceNum];
for (int i = 0; i < multiFaceInfo.faceNum; i++)
{
byte[] tempBytes = MemoryUtil.StructToBytes(multiFaceInfo.faceRects[i]);
tempBytes.CopyTo(allByte, MemoryUtil.SizeOf <MRECT>() * i);
}
Marshal.Copy(allByte, 0, multiFaceInfoStruct.faceRects, allByte.Length);
}
MemoryUtil.StructureToPtr(multiFaceInfoStruct, pMultiFaceInfo);
//调用SDK接口
retCode = ASFFunctions.ASFProcess_IR(pEngine, imageInfo.width, imageInfo.height, imageInfo.format, imageInfo.imgData, pMultiFaceInfo, combinedMask);
//释放内存
MemoryUtil.FreeArray(multiFaceInfoStruct.faceID, multiFaceInfoStruct.faceOrients, multiFaceInfoStruct.faceRects, pMultiFaceInfo);
return(retCode);
}
/// <summary>
/// 红外活体检测
/// </summary>
/// <param name="pEngine">引擎Handle</param>
/// <param name="imageInfo">图像数据</param>
/// <param name="multiFaceInfo">活体检测结果</param>
/// <returns>保存活体检测结果结构体</returns>
public static ASF_LivenessInfo LivenessInfo_IR(IntPtr pEngine, ImageInfo imageInfo, ASF_MultiFaceInfo multiFaceInfo, out int retCode)
{
IntPtr pMultiFaceInfo = UtilToolMemory.Malloc(UtilToolMemory.SizeOf <ASF_MultiFaceInfo>());
UtilToolMemory.StructureToPtr(multiFaceInfo, pMultiFaceInfo);
if (multiFaceInfo.faceNum == 0)
{
retCode = -1;
//释放内存
UtilToolMemory.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
try
{
//人脸信息处理
retCode = ASFFunctions.ASFProcess_IR(pEngine, imageInfo.width, imageInfo.height, imageInfo.format, imageInfo.imgData, pMultiFaceInfo, FaceEngineMask.ASF_IR_LIVENESS);
if (retCode == 0)
{
//获取活体检测结果
IntPtr pLivenessInfo = UtilToolMemory.Malloc(UtilToolMemory.SizeOf <ASF_LivenessInfo>());
retCode = ASFFunctions.ASFGetLivenessScore_IR(pEngine, pLivenessInfo);
Console.WriteLine("Get Liveness Result:" + retCode);
ASF_LivenessInfo livenessInfo = UtilToolMemory.PtrToStructure <ASF_LivenessInfo>(pLivenessInfo);
//释放内存
UtilToolMemory.Free(pMultiFaceInfo);
UtilToolMemory.Free(pLivenessInfo);
return(livenessInfo);
}
else
{
//释放内存
UtilToolMemory.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
}
catch
{
retCode = -1;
//释放内存
UtilToolMemory.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
}
/// <summary>
/// Infrared in vivo detection
/// </summary>
/// <param name="pEngine">Engine Handle</param>
/// <param name="imageInfo">Image data</param>
/// <param name="multiFaceInfo">In vivo test results</param>
/// <returns>Preserve the structure of in vivo detection results</returns>
public static ASF_LivenessInfo LivenessInfo_IR(IntPtr pEngine, ImageInfo imageInfo, ASF_MultiFaceInfo multiFaceInfo, out int retCode)
{
IntPtr pMultiFaceInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_MultiFaceInfo>());
MemoryUtil.StructureToPtr(multiFaceInfo, pMultiFaceInfo);
if (multiFaceInfo.faceNum == 0)
{
retCode = -1;
//Release memory
MemoryUtil.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
try
{
//Face information processing
retCode = ASFFunctions.ASFProcess_IR(pEngine, imageInfo.width, imageInfo.height, imageInfo.format, imageInfo.imgData, pMultiFaceInfo, FaceEngineMask.ASF_IR_LIVENESS);
if (retCode == 0)
{
//Obtain in vivo test results
IntPtr pLivenessInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_LivenessInfo>());
retCode = ASFFunctions.ASFGetLivenessScore_IR(pEngine, pLivenessInfo);
Console.WriteLine("Get Liveness Result:" + retCode);
ASF_LivenessInfo livenessInfo = MemoryUtil.PtrToStructure <ASF_LivenessInfo>(pLivenessInfo);
//Release memory
MemoryUtil.Free(pMultiFaceInfo);
MemoryUtil.Free(pLivenessInfo);
return(livenessInfo);
}
else
{
//Release memory
MemoryUtil.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
}
catch
{
retCode = -1;
//Release memory
MemoryUtil.Free(pMultiFaceInfo);
return(new ASF_LivenessInfo());
}
}