/// <summary>
/// 人脸检测(PS:检测RGB图像的人脸时，必须保证图像的宽度能被4整除，否则会失败)
/// </summary>
/// <param name="pEngine">引擎Handle</param>
/// <param name="imageInfo">图像数据</param>
/// <returns>人脸检测结果</returns>
public static ASF_MultiFaceInfo DetectFace(IntPtr pEngine, ImageInfo imageInfo)
{
ASF_MultiFaceInfo multiFaceInfo = new ASF_MultiFaceInfo();
IntPtr pMultiFaceInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_MultiFaceInfo>());
int retCode = ASFFunctions.ASFDetectFaces(pEngine, imageInfo.width, imageInfo.height, imageInfo.format, imageInfo.imgData, pMultiFaceInfo);
multiFaceInfo = MemoryUtil.PtrToStructure <ASF_MultiFaceInfo>(pMultiFaceInfo);
return(multiFaceInfo);
}
/// <summary>
/// 人脸检测
/// 检测RGB图像的人脸时，必须保证图像的宽度能被4整除，否则会失败
/// </summary>
/// <param name="pEngine">引擎</param>
/// <param name="imageInfo">图像数据</param>
/// <returns></returns>
public static ASF_MultiFaceInfo DetectFace(IntPtr pEngine, ImageInfo imageInfo)
{
//创建多张人脸的数据结构体
ASF_MultiFaceInfo multiFaceInfo = new ASF_MultiFaceInfo();
//创建一个指针可以指向MultiFaceInfo结构
IntPtr pMultiFaceInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_MultiFaceInfo>());
int retCode = ASFFunctions.ASFDetectFaces(pEngine, imageInfo.width, imageInfo.height, imageInfo.format, imageInfo.imgData, pMultiFaceInfo);
//当人脸识别错误，则释放内存，返回一个默认的结构
if (retCode != 0)
{
MemoryUtil.Free(pMultiFaceInfo);
pMultiFaceInfo = IntPtr.Zero;
return(multiFaceInfo);
}
//将从C++程序集得到的多人脸结构内存转义成C#的多人脸结构体中
multiFaceInfo = MemoryUtil.PtrToStructure <ASF_MultiFaceInfo>(pMultiFaceInfo);
MemoryUtil.Free(pMultiFaceInfo);
pMultiFaceInfo = IntPtr.Zero;
return(multiFaceInfo);
}
