/// <summary> /// 人脸检测/人脸追踪 /// 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="imageFormat">图片格式</param> /// <param name="image">图片</param> /// <param name="multiFaceInfo">多人脸对象</param> /// <param name="detectModel">检测模式</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 ASFDetectFacesEx(Image image, out MultiFaceInfo multiFaceInfo, ASF_ImagePixelFormat imageFormat = ASF_ImagePixelFormat.ASVL_PAF_RGB24_B8G8R8, ASF_DetectModel detectModel = ASF_DetectModel.ASF_DETECT_MODEL_RGB) { int retCode = -1; multiFaceInfo = new MultiFaceInfo(); 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_MultiFaceInfo multiFaceInfoStruct = new ASF_MultiFaceInfo(); IntPtr pMultiFaceInfo = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_MultiFaceInfo>()); //调用SDK接口 retCode = ASFFunctions.ASFDetectFacesEx(pEngine, pImageInfo, pMultiFaceInfo); if (retCode != 0) { MemoryUtil.FreeArray(imageInfo.imgData, pMultiFaceInfo, pImageInfo); return(retCode); } multiFaceInfoStruct = MemoryUtil.PtrToStructure <ASF_MultiFaceInfo>(pMultiFaceInfo); MemoryUtil.FreeArray(imageInfo.imgData, pMultiFaceInfo, pImageInfo); //转化非托管内存到托管内存 multiFaceInfo.faceNum = multiFaceInfoStruct.faceNum; if (multiFaceInfo.faceNum > 0) { if (multiFaceInfoStruct.faceID != IntPtr.Zero) { multiFaceInfo.faceID = new int[multiFaceInfo.faceNum]; Marshal.Copy(multiFaceInfoStruct.faceID, multiFaceInfo.faceID, 0, multiFaceInfo.faceNum); } multiFaceInfo.faceOrients = new int[multiFaceInfo.faceNum]; Marshal.Copy(multiFaceInfoStruct.faceOrients, multiFaceInfo.faceOrients, 0, multiFaceInfo.faceNum); multiFaceInfo.faceRects = new MRECT[multiFaceInfo.faceNum]; for (int i = 0; i < multiFaceInfo.faceNum; i++) { multiFaceInfo.faceRects[i] = MemoryUtil.PtrToStructure <MRECT>(multiFaceInfoStruct.faceRects + MemoryUtil.SizeOf <MRECT>() * i); } } return(retCode); }