用Kinect2将人物画面抠图显示在UE4中
2024-04-16 00:21:33
目录
一、目的
1、用Kinect2人物画面抠图显示在UE4中
二、参考
1、固始《三防知识介绍》中的体感项目
三、过程
1、运行效果：
1、版本
1、新建工程：第三人称类型：MyKinect2Test
1、新建C++类，HUD类型，里面代码都是空的
1、从VS中运行
1、UE4中创建几个材质球：其中主要使用到了M_MatColor
1、MyHUD.h：添加内容
1、MyHUD.cpp：添加内容(里面很多的代码暂时没有理解)
1、MyKinect2Test.Build.cs：添加调用的h文件路径、lib文件路径
1、文件夹设置：添加lib文件和头文件
1、添加dll文件，到时候MyKinect2Test.Build.cs用到什么lib文件，就添加相对应的dll文件。如果少了会报“缺少模块”错误
1、MyKinect2Test.h：
1、MyKinect2Test.cpp
1、创建蓝图类：Actor类型：BP_MatPlane：显示Kinect抠图画面的plane
1、设置显示Kinect人物画面的位置
1、创建基于C++的MyHUD创建蓝图：BP_myHUD
1、设置地图
1、UE4设置：HUD Class
三、注意：
1、代码中使用到了公司的Kinect库
2、创建的HUD代码中，先打开kinect、然后运行Kinect、
3、里面材质转换的代码，还在研究中，很多地方不理解
4、很多代码使用的不理解，直接借鉴参考的项目，复制其中的代码，最终实现了这个效果
5、自己再次做的时候，如果无法实现的话，一定要核对里面的细节：蓝图节点My Mat Dynamic Material、材质名字Tex001 等等
一、目的
1、用Kinect2人物画面抠图显示在UE4中
二、参考
1、固始《三防知识介绍》中的体感项目
三、过程
1、运行效果：
①此时：人物就会在这个plane中抠出来了
1、版本
UE4 4.18.3 (同样的方法在UE4 4.24.3+VS2017上面，vs一直报错1)(同样的方法UE4 4.21.2+VS2015是可以的)(同样的方法UE4 4.23.1+VS2017是可以的)
VS2015
1、新建工程：第三人称类型：MyKinect2Test
MyKinect2Test
1、新建C++类，HUD类型，里面代码都是空的
1、从VS中运行
①点击是
1、UE4中创建几个材质球：其中主要使用到了M_MatColor
My_materials：文件夹
M_CamColor
M_FaceColor
M_MatColor：只设置这个
①param
基础颜色：Tex001，纹理
1、MyHUD.h：添加内容
// Fill out your copyright notice in the Description page of Project Settings.#pragma once#include "MyKinect2Test.h"//xzy#include "CoreMinimal.h"
#include "GameFramework/HUD.h"
#include "MyHUD.generated.h"/*** */
UCLASS()
class MYKINECT2TEST_API AMyHUD : public AHUD
{GENERATED_BODY()public:// Sets default values for this pawn's propertiesAMyHUD();public:virtual void DrawHUD();virtual void BeginPlay() override;virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;// Called every framevirtual void Tick(float DeltaTime) override;public:static void __stdcall CallBackK2Bone(void* pDataSource, void* pClassExample);static void __stdcall CallBackBodyIndex(INT64 nRelativeTime, BYTE* pBuffer, void* pDataExample);static void __stdcall CallBackDepth(INT64 nRelativeTime, UINT16* pBuffer, USHORT nDepthMinReliableDistance, USHORT nDepthMaxDistance, void* pDataExample);static void __stdcall CallBackColor(INT64 nRelativeTime, BYTE* pBuffer, void* pDataExample);K2_BODY* pBody;K2_BONE_ADJUST_DATA pParam;UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "K2Bone")bool isTrack;UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "K2Bone")bool bFaceDetect;public:UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")int nDebug;UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "XZY")UTexture2D* MyTex;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterial* MyMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterialInstanceDynamic* MyDynamicMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UTexture2D *MyTexture;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterial* MyFaceMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterialInstanceDynamic* MyFaceDynamicMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UTexture2D *MyFaceTexture;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterial* MyMatMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UMaterialInstanceDynamic* MyMatDynamicMaterial;UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "XZY")UTexture2D *MyMatTexture;};
1、MyHUD.cpp：添加内容(里面很多的代码暂时没有理解)
①思路：先打开kinect、然后运行Kinect、然后再Tick中不断的设置材质
①构造函数中，设置材质
// Fill out your copyright notice in the Description page of Project Settings.#include "MyHUD.h"#include "ConstructorHelpers.h"
#include <iostream> //Kinect2
float g_nMinX = -0.5f;
float g_nMaxX = 0.5f;
float g_nMinZ = 0.0f;
float g_nMaxZ = 2.0f;float g_rOffsetX = 0.0f;
float g_rOffsetY = 0.0f;
float g_rScaleX = 1.0f;
float g_rScaleY = 1.0f;//人脸抠像区间
int g_nFacelumen = 0;
int g_nFaceWidth = 100;
int g_nFaceHeight = 100;
float g_fYaw = 20.0f;//抠像部分数据
int g_nX = 657;
int g_nY = 0;
int g_nWidth = 706;
int g_nHeight = 1080;
int g_nLumen = 0;//人脸的中心点
ColorSpacePoint pColorHeadPoint = { 0,0 };//彩色图像以及人脸对应的数据
char* pColorBodyData = nullptr;
char* pColorBodyFaceData = nullptr;//抠像
char* pMatData = nullptr;
char* pBodyIndexData = nullptr;bool bCToDRet = false;
DepthSpacePoint* pColorSP = new DepthSpacePoint[1920 * 1080];//右手的坐标
float g_cRX = 0;
float g_cRY = 0;//人脸识别
void* pFace = nullptr;//Flash
void* pFlash = nullptr;
char fPath[255] = { 0 };// Sets default values
AMyHUD::AMyHUD()
{// Set this pawn to call Tick() every frame. You can turn this off to improve performance if you don't need it.PrimaryActorTick.bCanEverTick = true;struct FConstructorStatics{ConstructorHelpers::FObjectFinderOptional<UMaterial> mat;ConstructorHelpers::FObjectFinderOptional<UMaterial> faceMat;ConstructorHelpers::FObjectFinderOptional<UMaterial> matMat;FConstructorStatics(): mat(TEXT("Material'/Game/My_materials/M_CamColor.M_CamColor'")),faceMat(TEXT("Material'/Game/My_materials/M_FaceColor.M_FaceColor'")),matMat(TEXT("Material'/Game/My_materials/M_MatColor.M_MatColor'")){}};static FConstructorStatics ConstructorStatics;MyMaterial = ConstructorStatics.mat.Get();MyFaceMaterial = ConstructorStatics.faceMat.Get();MyMatMaterial = ConstructorStatics.matMat.Get();MyTexture = nullptr;MyDynamicMaterial = nullptr;MyTex = nullptr;MyFaceTexture = nullptr;MyFaceDynamicMaterial = nullptr;MyMatTexture = nullptr;MyMatDynamicMaterial = nullptr;
}void AMyHUD::BeginPlay()
{Super::BeginPlay();if (pColorBodyData == nullptr){pColorBodyData = new char[1080 * 1920 * 4];}if (pColorBodyFaceData == nullptr){pColorBodyFaceData = new char[g_nFaceHeight * g_nFaceWidth * 4];}if (pMatData == nullptr){pMatData = new char[1080 * 1920 * 4];}if (pBodyIndexData == nullptr){pBodyIndexData = new char[424 * 512];}if (MyTexture == nullptr){MyTexture = UTexture2D::CreateTransient(g_nWidth, g_nHeight, PF_B8G8R8A8);}if (MyDynamicMaterial == nullptr){MyDynamicMaterial = UMaterialInstanceDynamic::Create(MyMaterial, this);}if (MyFaceDynamicMaterial == nullptr){MyFaceDynamicMaterial = UMaterialInstanceDynamic::Create(MyFaceMaterial, this);}if (MyFaceTexture == nullptr){MyFaceTexture = UTexture2D::CreateTransient(g_nFaceWidth, g_nFaceHeight, PF_B8G8R8A8);}if (MyMatTexture == nullptr){MyMatTexture = UTexture2D::CreateTransient(g_nWidth, g_nHeight, PF_B8G8R8A8);}if (MyMatDynamicMaterial == nullptr){MyMatDynamicMaterial = UMaterialInstanceDynamic::Create(MyMatMaterial, this);}isTrack = false;if (K2Open() != true){int a = -1;}if (K2RunBoneBind(this, CallBackK2Bone) != true){}//运行KinectK2Run(this, NULL, CallBackBodyIndex, CallBackDepth, CallBackColor, NULL);}void AMyHUD::EndPlay(const EEndPlayReason::Type EndPlayReason)
{Super::EndPlay(EndPlayReason);K2Stop();K2StopBoneBind();K2Close();if (pColorBodyData != nullptr){delete[] pColorBodyData;pColorBodyData = nullptr;}if (pColorBodyFaceData != nullptr){delete[] pColorBodyFaceData;pColorBodyFaceData = nullptr;}if (pMatData != nullptr){delete[] pMatData;pMatData = nullptr;}if (pBodyIndexData != nullptr){delete[] pBodyIndexData;pBodyIndexData = nullptr;}}//测试02：?：扣出人物并且显示在UE4场景中
void AMyHUD::Tick(float DeltaTime)
{Super::Tick(DeltaTime);//fDeltaTime = DeltaTime;if (pColorBodyData != nullptr){//更新抠像if ((g_nX + g_nWidth) > 1920 ||(g_nY + g_nHeight) > 1080 ||g_nX < 0 ||g_nY < 0 ||g_nWidth <= 0 ||g_nHeight <= 0 ||g_nWidth > 1920 ||g_nHeight > 1080){return;}if (pColorBodyData != nullptr){//显示采集的摄像头图像void* temp_dataPtr = MyMatTexture->PlatformData->Mips[0].BulkData.Lock(LOCK_READ_WRITE);for (int i = 0; i < g_nHeight; i++){unsigned char* s = (unsigned char*)pMatData + (i + g_nY) * 1920 * 4;unsigned char* d = (unsigned char*)temp_dataPtr + i * g_nWidth * 4;for (int j = 0; j < g_nWidth; j++){//从原图的487列往后开始数据更新到目标纹理d[4 * j + 0] = (s[4 * (j + g_nX) + 0] - g_nLumen) >= 0 ? (s[4 * (j + g_nX) + 0] - g_nLumen) : 0;d[4 * j + 1] = (s[4 * (j + g_nX) + 1] - g_nLumen) >= 0 ? (s[4 * (j + g_nX) + 1] - g_nLumen) : 0;d[4 * j + 2] = (s[4 * (j + g_nX) + 2] - g_nLumen) >= 0 ? (s[4 * (j + g_nX) + 2] - g_nLumen) : 0;d[4 * j + 3] = s[4 * (j + g_nX) + 3];}}MyMatTexture->PlatformData->Mips[0].BulkData.Unlock();MyMatTexture->UpdateResource();MyMatDynamicMaterial->SetTextureParameterValue(FName("Tex001"), MyMatTexture);//将MyMatTexture材质中的Text001材质，更改MyMatDynamicMaterial材质}}}void AMyHUD::DrawHUD()
{Super::DrawHUD();}void AMyHUD::CallBackK2Bone(void* pDataSource, void* pClassExample)
{AMyHUD* pClass = (AMyHUD*)pClassExample;K2_BONEBIND_OUT* pData = (K2_BONEBIND_OUT*)pDataSource;if ((pData == nullptr) || (pClass == nullptr)){pClass->isTrack = false;return;}K2_BONE_ADJUST_DATA* pP = pData->adjust;pClass->pBody = pData->body;for (int i = 0; i < BODY_COUNT; ++i){if (pClass->pBody[i].trackedid == (UINT64)-1){pClass->isTrack = false;continue;}if (pClass->pBody[i].joints[JointType_SpineMid].Position.Z < g_nMinZ ||pClass->pBody[i].joints[JointType_SpineMid].Position.Z > g_nMaxZ ||pClass->pBody[i].joints[JointType_SpineMid].Position.X > g_nMaxX ||pClass->pBody[i].joints[JointType_SpineMid].Position.X < g_nMinX){pClass->isTrack = false;continue;}if (pClass->pBody[i].joints[JointType_SpineMid].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_SpineShoulder].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_ShoulderLeft].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_ShoulderRight].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_Neck].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_Head].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_KneeLeft].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_KneeRight].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_AnkleLeft].TrackingState != TrackingState_Tracked ||pClass->pBody[i].joints[JointType_AnkleRight].TrackingState != TrackingState_Tracked){pClass->isTrack = false;continue;}if (pClass->pBody[i].joints[JointType_SpineMid].Position.Z <= g_nMaxZ &&pClass->pBody[i].joints[JointType_SpineMid].Position.Z >= g_nMinZ &&pClass->pBody[i].joints[JointType_SpineMid].Position.X >= g_nMinX &&pClass->pBody[i].joints[JointType_SpineMid].Position.X <= g_nMaxX){//tDeltaSum = 0.0f;pClass->isTrack = true;//memcpy_s(pColorBodyData, 1080 * 1920 * 4, pData->color, 1080 * 1920 * 4);memcpy_s(&(pClass->pParam), sizeof(K2_BONE_ADJUST_DATA), &(pP[i]), sizeof(K2_BONE_ADJUST_DATA));g_cRX = pClass->pBody[i].colorpoints[JointType_HandRight].X / 1920.0f * 1080.0f * g_rScaleX + g_rOffsetX;g_cRY = pClass->pBody[i].colorpoints[JointType_HandRight].Y / 1080.0f * 1920.0f * g_rScaleY + g_rOffsetY;memcpy_s(&(pColorHeadPoint), sizeof(ColorSpacePoint), &(pClass->pBody[i].colorpoints[JointType_Head]), sizeof(ColorSpacePoint));// if (m_nGameStatus == GAME_STATUS::game_wait)
// {
// //待机
// m_nGameStatus = GAME_STATUS::game_count;
//
// if (pFlash != NULL)
// {
// FastFlashPostMouseKeyMessage(pFlash, 0x0100, 32, 0);
// Sleep(100);//单位秒
// }
// }
// else if (m_nGameStatus == GAME_STATUS::game_count)
// {
// //倒计时
//
// }
// else if (m_nGameStatus == GAME_STATUS::game_select || m_nGameStatus == GAME_STATUS::game_run)
// {
// if (g_cRX >= 0 && g_cRX <= 1080 &&
// g_cRY >= 0 && g_cRY <= 1920)
// {
// if (pFlash != NULL)
// {
// FastFlashMCMove(pFlash, "hand_mc", g_cRX, g_cRY);
// }
// }
// }
// break;}//GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, FString::Printf(TEXT("height= %f"), height));}
}void AMyHUD::CallBackBodyIndex(INT64 nRelativeTime, BYTE* pBuffer, void* pDataExample)
{if (pBuffer != nullptr){unsigned int len = 512 * 424 * 1;memcpy_s(pBodyIndexData, len, pBuffer, len);}
}void AMyHUD::CallBackDepth(INT64 nRelativeTime, UINT16* pBuffer, USHORT nDepthMinReliableDistance, USHORT nDepthMaxDistance, void* pDataExample)
{if (pBuffer != nullptr){UINT depthCount = 512 * 424;UINT colorCount = 1920 * 1080;bCToDRet = K2ColorToDepth(depthCount, pBuffer, colorCount, pColorSP);}
}void AMyHUD::CallBackColor(INT64 nRelativeTime, BYTE* pBuffer, void* pDataExample)
{if (pBuffer != nullptr){unsigned int len = 1080 * 1920 * 4;memcpy_s(pColorBodyData, len, pBuffer, len);if (bCToDRet && pColorSP != nullptr){int colorIndex = 0;for (unsigned int i = 0; i < 1080; i++){char* pSrc = pColorBodyData + i * 1920 * 4;char* pDst = pMatData + i * 1920 * 4;for (unsigned int j = 0; j < 1920; j++){DepthSpacePoint p = pColorSP[colorIndex++];// Values that are negative infinity means it is an invalid color to depth mapping so we// skip processing for this pixelif (p.X != -std::numeric_limits<float>::infinity() && p.Y != -std::numeric_limits<float>::infinity()){int depthX = static_cast<int>(p.X + 0.5f);int depthY = static_cast<int>(p.Y + 0.5f);if ((depthX >= 0 && depthX < 512) && (depthY >= 0 && depthY < 424)){BYTE player = pBodyIndexData[depthX + (depthY * 512)];// if we're tracking a player for the current pixel, draw from the color cameraif (player != 0xff){// set source for copy to the color pixelpDst[j * 4 + 0] = pSrc[j * 4 + 0];pDst[j * 4 + 1] = pSrc[j * 4 + 1];pDst[j * 4 + 2] = pSrc[j * 4 + 2];pDst[j * 4 + 3] = pSrc[j * 4 + 3];}else{// set source for copy to the color pixelpDst[j * 4 + 0] = 0x00;pDst[j * 4 + 1] = 0x00;pDst[j * 4 + 2] = 0x00;pDst[j * 4 + 3] = 0x00;}}}else{// set source for copy to the color pixelpDst[j * 4 + 0] = 0x00;pDst[j * 4 + 1] = 0x00;pDst[j * 4 + 2] = 0x00;pDst[j * 4 + 3] = 0x00;}}}}}
}1、MyKinect2Test.Build.cs：添加调用的h文件路径、lib文件路径
// Fill out your copyright notice in the Description page of Project Settings.using UnrealBuildTool;
using System.IO;public class VirtualDressMirror : ModuleRules
{private string ModulePath{get { return ModuleDirectory; }}public VirtualDressMirror(ReadOnlyTargetRules Target) : base(Target){PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore" });PrivateDependencyModuleNames.AddRange(new string[] { });// Uncomment if you are using Slate UI// PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });// Uncomment if you are using online features// PrivateDependencyModuleNames.Add("OnlineSubsystem");// To include OnlineSubsystemSteam, add it to the plugins section in your uproject file with the Enabled attribute set to true//FastPublicIncludePaths.Add(Path.Combine(ModulePath, "../../ThirdParty/Fast/include"));PublicAdditionalLibraries.Add(Path.Combine(ModulePath, "../../ThirdParty/Fast/lib/Fast_Config.lib"));PublicAdditionalLibraries.Add(Path.Combine(ModulePath, "../../ThirdParty/Fast/lib/Fast_Flash.lib"));PublicAdditionalLibraries.Add(Path.Combine(ModulePath, "../../ThirdParty/Fast/lib/FastFaceDetect.lib"));//TKinect2.0PublicIncludePaths.Add(Path.Combine(ModulePath, "../../ThirdParty/Kinect2"));PublicAdditionalLibraries.Add(Path.Combine(ModulePath, "../../ThirdParty/Kinect2/K2.lib"));}
}
1、文件夹设置：添加lib文件和头文件
1、添加dll文件，到时候MyKinect2Test.Build.cs用到什么lib文件，就添加相对应的dll文件。如果少了会报“缺少模块”错误
1、MyKinect2Test.h：
// Fill out your copyright notice in the Description page of Project Settings.#pragma once#include "CoreMinimal.h"#include "AllowWindowsPlatformTypes.h"
#include <windows.h>
#include "HideWindowsPlatformTypes.h"//Kinect2
#include "../../ThirdParty/Kinect2/K2.h"
#include "../../ThirdParty/Kinect2/K2Matting.h"
#include "../../ThirdParty/Kinect2/K2Bone.h"
#include "../../ThirdParty/Kinect2/K2Face.h"#define K2Vec32FVector(v) FVector((v).x, (v).y, (v).z)
#define FVector2K2Vec3(v) K2Vec3((v).X, (v).Y, (v).Z)#define K2Quat2FQuat(q) FQuat((q).x, (q).y, (q).z, (q).w)
#define FQuat2K2Quat(q) K2Quat((q).X, (q).Y, (q).Z, (q).W)
#define K2Quat2FRotator(q) FRotator(K2Quat2FQuat(q))
#define FRotator2K2Quat(r) FQuat2K2Quat(FQuat(r))// UE与Kinect2坐标系转换
FVector WINAPI K2Coordinate2UECoordinate(FVector k2v);
FQuat WINAPI K2Coordinate2UECoordinate(FQuat k2q);
FVector WINAPI UECoordinate2K2Coordinate(FVector uev);
FQuat WINAPI UECoordinate2K2Coordinate(FQuat ueq);1、MyKinect2Test.cpp
// Fill out your copyright notice in the Description page of Project Settings.#include "MyKinect2Test.h"
#include "Modules/ModuleManager.h"IMPLEMENT_PRIMARY_GAME_MODULE( FDefaultGameModuleImpl, MyKinect2Test, "MyKinect2Test" );//xzy
FVector WINAPI K2Coordinate2UECoordinate(FVector k2v)
{return FVector(k2v.X, -k2v.Z, k2v.Y);
}FQuat WINAPI K2Coordinate2UECoordinate(FQuat k2q)
{float angle;FVector axis;k2q.ToAxisAndAngle(axis, angle);axis = K2Coordinate2UECoordinate(axis);return FQuat(axis, angle);
}FVector WINAPI UECoordinate2K2Coordinate(FVector uev)
{return FVector(uev.X, uev.Z, -uev.Y);
}FQuat WINAPI UECoordinate2K2Coordinate(FQuat ueq)
{float angle;FVector axis;ueq.ToAxisAndAngle(axis, angle);axis = UECoordinate2K2Coordinate(axis);return FQuat(axis, angle);
}1、创建蓝图类：Actor类型：BP_MatPlane：显示Kinect抠图画面的plane
1、设置显示Kinect人物画面的位置
1、创建基于C++的MyHUD创建蓝图：BP_myHUD
①因为C++的MyHUD类的构造函数中：直接找到了这三个材质球
①创建变量： pBPMatPlane，让其显示体感画面，因为BP_MatPlane里的plane材质会在代码中不断修改获得Kinect的人物抠图画面
①初始化：获得这个组件、Tick里面不断的刷新组件材质
1、设置地图
①想在什么场景中显示，需要进行设置
1、UE4设置：HUD Class
①如果没有自定义的GameMode，那么自定义一个，目的是让游戏类型的HUDClass设置为自己创建的HUD
三、注意：
1、代码中使用到了公司的Kinect库
2、创建的HUD代码中，先打开kinect、然后运行Kinect、
3、里面材质转换的代码，还在研究中，很多地方不理解
4、很多代码使用的不理解，直接借鉴参考的项目，复制其中的代码，最终实现了这个效果
5、自己再次做的时候，如果无法实现的话，一定要核对里面的细节：蓝图节点My Mat Dynamic Material、材质名字Tex001 等等
用Kinect2将人物画面抠图显示在UE4中相关推荐
- 服务器加30台显示器,30台手机画面同时显示在一个显示器上的解决方案
30台手机画面同时显示在一个显示器上的解决方案 这是今天网友在知乎上的咨询:"咨询一下,有没有30台手机画面同时显示在一个显示器上的解决方案?就是举行一个知识比赛,三十个人同时手机答题,画面 ...
- PS人物一键抠图，实现照片背景更换
标题PS人物一键抠图,实现照片背景更换 1.打开PS,把需要抠图的图片放进去 2.在击 选择–>主体 , 3.可以看到人物已被选中,点击 选择被遮住 4.之后在这个里面修改下头发边缘位置 5.调 ...
- 计算机无法显示界面,电脑屏幕什么都不显示怎么解决_电脑画面不显示是什么问题-win7之家...
一般来说,我们在启动完电脑进入到系统中之后,屏幕上也应该会有一些系统程序图标显示出来,当然也不能排除一些意外,有的用户的电脑在启动之后屏幕却什么都不显示,这可把有些用户急坏了,那么电脑画面不显示是什么 ...
- 深度学习实战23(进阶版)-语义分割实战，实现人物图像抠图的效果（计算机视觉）
大家好,我是微学AI,今天给大家带来深度学习实战23(进阶版)-语义分割实战,实现人物图像抠图的效果.语义分割是计算机视觉中的一项重要任务,其目标是将图像中的每个像素都分配一个语义类别标签.与传统的目 ...
- 【GitHubShare】一种强大、实时、高分辨率的人物视频抠图方法，使用循环神经网络
视频自动抠图技术:RobustVideoMatting. 该技术引入了一种强大.实时.高分辨率的人物视频抠图方法,使用循环神经网络,在处理视频流时有时间记忆,可在任意视频上做实时高清抠像.在 Nvid ...
- Dialog显示加载中
移动端的的网络情况有的时候是很不稳定的(在地下室额,气死人)或是使用某些运营商的SIM卡,有的时候进出地铁就会没信号,所以造成数据加载很慢,假如我们没有对这块做处理,App的使用者就会很烦躁(一般不超 ...
- 微信小程序 在使用wx.request时显示加载中
我们可以用wx.showLoading(OBJECT),当请求服务器的地方多了,怎么才能不每次都要去调用函数,我们只要对wx.request加工下就可以了,在utils下新建js文件network.j ...
- html的子页面获取自己url,如何从html页面获取url参数并将其显示在textarea中？
我用下面的在我的HTML页面的JavaScript功能,我想没有textarea的任何连接操作正常显示参数....如何从html页面获取url参数并将其显示在textarea中? function g ...
- 单击“登录”后，用户名和密码显示在地址栏中，不安全
单击"登录"后,用户名和密码显示在地址栏中,不安全 问题现象 单击登录按钮,浏览器地址栏中显示了登录名和密码,存在密码泄漏的风险. 原因分析 Html表单提交采用的是get方法,g ...
最新文章
- DATE_GET_WEEK
- wxWidgets随笔(4)-hello,world
- oracle 计算公式解析,用PL/SQL如何实现公式解析计算
- 如何转载-CSDN博客
- 注册界面演示代码（前端开发）
- MySQL 亿级数据需求的优化思路(二)，100亿数据，1万字段属性的秒级检索
- 华为荣耀v20是android10,荣耀V20和荣耀V10买哪个好
- 经典面试题(46)：以下代码将输出的结果是什么？
- php中声明空数组,总结PHP中初始化空数组的最佳方法
- python_day33- udp 多道技术
- OSPF综合实验(有点难哦！)
- IdentityServer的基本概念与特性
- Unity初级坦克大战游戏实现（Battle Tank）带工程源码资源包（二）
- linux运行maya,Debian5.0下成功安装Maya2009!!
- CMOS模拟集成电路设计 吴金 学习记录1
- 台式计算机操作系统的安装,台式电脑重装系统步骤图解
- linux的字体文件夹在哪里,把windows下的字体安装到Linux系统下的方法介绍
- Java Swing中JFreeChart构建双纵轴（双Y轴）图表的使用纪要
- 无锡设计培训——室内设计方案图纸包括哪些？
- 信息系统项目管理师学习笔记6-项目进度管理