///<summary>
///图像质量检测
///推荐阈值0.35
///图像数据以结构体形式传入，对采用更高字节对齐方式的图像兼容性更好
///</summary>
/// <param name="hEngine">引擎handle</param>
/// <param name="imgData">图片数据</param>
/// <param name="detectedFaces">人脸位置信息</param>
/// <param name="imageQualityInfo">图像质量检测结果</param>
/// <param name="detectModel">预留字段，当前版本使用默认参数(ASF_DETECT_MODEL_RGB)即可</param>
/// <returns>调用结果</returns>
public int ASFImageQualityDetectEx(Image image, MultiFaceInfo multiFaceInfo, out ImageQualityInfo imageQualityInfo, ASF_ImagePixelFormat imageFormat = ASF_ImagePixelFormat.ASVL_PAF_RGB24_B8G8R8, ASF_DetectModel detectModel = ASF_DetectModel.ASF_DETECT_MODEL_RGB)
{
int retCode = -1;
imageQualityInfo = new ImageQualityInfo();
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);
}
ASF_ImageData asfInfoData = CommonUtil.TransImageDataStructByImageInfo(imageInfo);
IntPtr pImageInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_ImageData>());
MemoryUtil.StructureToPtr(asfInfoData, pImageInfo);
ASF_ImageQualityInfo ImageQualityInfoStruct = new ASF_ImageQualityInfo();
IntPtr pImageQualityInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_ImageQualityInfo>());
//转化人脸信息
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.ASFImageQualityDetectEx(pEngine, pImageInfo, pMultiFaceInfo, pImageQualityInfo);
if (retCode != 0)
{
MemoryUtil.FreeArray(imageInfo.imgData, pMultiFaceInfo, pImageInfo, pImageQualityInfo);
return(retCode);
}
ImageQualityInfoStruct = MemoryUtil.PtrToStructure <ASF_ImageQualityInfo>(pImageQualityInfo);
MemoryUtil.FreeArray(imageInfo.imgData, pMultiFaceInfo, pImageInfo, pImageQualityInfo);
//转化非托管内存到托管内存
imageQualityInfo.num = ImageQualityInfoStruct.num;
if (imageQualityInfo.num > 0)
{
imageQualityInfo.faceQualityValues = new float[imageQualityInfo.num];
Marshal.Copy(ImageQualityInfoStruct.faceQualityValues, imageQualityInfo.faceQualityValues, 0, imageQualityInfo.num);
}
return(retCode);
}