close all; clear all; clc;load ('6mm_matlab.mat') % 相机标定基本参数 M = cameraParams.IntrinsicMatrix'; R = cameraParams.RotationMatrices(:,:,1); T = cameraParams.TranslationVectors(1,:)'; UV = cameraParams.ReprojectedPoints(:,:,1); v = VideoReader('shoujilux7.mp4'); while hasFrame(v) frame = readFrame(v); gray_frame = rgb2gray(frame); % gamma校正 gamma = 1.5; gamma_corrected = imadjust(gray_frame,[],[],gamma); % 高斯滤波 sigma = 1; hsize = ceil(6*sigma); h = fspecial('gaussian', hsize, sigma); filtered_frame = imfilter(gamma_corrected, h); % Otsu阈值分割 T = graythresh(filtered_frame); [m, n] = size(filtered_frame); E = bwareaopen(im2bw(filtered_frame, T), round(m*n/1000), 8); % Canny边缘检测 canny_edge = edge(E, 'canny'); % 形态学膨胀 se = strel('disk', 2); dilated_edge = imdilate(canny_edge, se); % 连通域分析 stats = regionprops('table', dilated_edge, 'Area', 'Centroid'); % 筛选面积最大的连通区域 [~, idx] = max(stats.Area); centroid = stats.Centroid(idx, :); % 将质心坐标显示在GUI中 d = 100; % 假设质心到相机的距离为100mm pixel_coord = [centroid(1); centroid(2); 1]; world_coord = inv(M) * pixel_coord * d; disp(world_coord); % 显示质心的实际坐标 % 显示帧和质心 imshow(centroid); hold on; plot(centroid(1), centroid(2), 'r+', 'MarkerSize', 10); hold off; drawnow; end设计gui显示坐标

你可以参考以下代码实现GUI界面，显示质心坐标：

function varargout = centroid_gui(varargin)
% CENTROID_GUI MATLAB code for centroid_gui.fig
%      CENTROID_GUI, by itself, creates a new CENTROID_GUI or raises the existing
%      singleton*.
%
%      H = CENTROID_GUI returns the handle to a new CENTROID_GUI or the handle to
%      the existing singleton*.
%
%      CENTROID_GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in CENTROID_GUI.M with the given input arguments.
%
%      CENTROID_GUI('Property','Value',...) creates a new CENTROID_GUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before centroid_gui_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to centroid_gui_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help centroid_gui

% Last Modified by GUIDE v2.5 29-Jun-2021 11:59:01

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @centroid_gui_OpeningFcn, ...
                   'gui_OutputFcn',  @centroid_gui_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before centroid_gui is made visible.
function centroid_gui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to centroid_gui (see VARARGIN)

% Choose default command line output for centroid_gui
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes centroid_gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = centroid_gui_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in start_btn.
function start_btn_Callback(hObject, eventdata, handles)
% hObject    handle to start_btn (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

load ('6mm_matlab.mat'); % 相机标定基本参数
M = cameraParams.IntrinsicMatrix';
R = cameraParams.RotationMatrices(:,:,1);
T = cameraParams.TranslationVectors(1,:)';

v = VideoReader('shoujilux7.mp4');
while hasFrame(v)
    frame = readFrame(v);
    gray_frame = rgb2gray(frame);
    
    % gamma校正
    gamma = 1.5;
    gamma_corrected = imadjust(gray_frame,[],[],gamma);  
    
    % 高斯滤波
    sigma = 1;
    hsize = ceil(6*sigma);
    h = fspecial('gaussian', hsize, sigma);
    filtered_frame = imfilter(gamma_corrected, h);  
    
    % Otsu阈值分割
    T = graythresh(filtered_frame);
    [m, n] = size(filtered_frame);
    E = bwareaopen(im2bw(filtered_frame, T), round(m*n/1000), 8);  
    
    % Canny边缘检测
    canny_edge = edge(E, 'canny');  
    
    % 形态学膨胀
    se = strel('disk', 2);
    dilated_edge = imdilate(canny_edge, se);  
    
    % 连通域分析
    stats = regionprops('table', dilated_edge, 'Area', 'Centroid');  
    
    % 筛选面积最大的连通区域
    [~, idx] = max(stats.Area);
    centroid = stats.Centroid(idx, :);
    
    % 将质心坐标显示在GUI中
    d = 100; % 假设质心到相机的距离为100mm
    pixel_coord = [centroid(1); centroid(2); 1];
    world_coord = inv(M) * pixel_coord * d;
    set(handles.coord_text, 'String', ['x: ', num2str(world_coord(1)), '   y: ', num2str(world_coord(2)), '   z: ', num2str(world_coord(3))]);
    
    % 显示帧和质心
    axes(handles.video_axes);
    imshow(frame);
    hold on;
    plot(centroid(1), centroid(2), 'r+', 'MarkerSize', 10);
    hold off;
    drawnow;
end


% --- Executes on button press in stop_btn.
function stop_btn_Callback(hObject, eventdata, handles)
% hObject    handle to stop_btn (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Stop the video
set(handles.coord_text, 'String', '');
axes(handles.video_axes);
cla;


% --- Executes when user attempts to close figure1.
function figure1_CloseRequestFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Stop the video and delete the GUI
stop_btn_Callback(handles.stop_btn, eventdata, handles);
delete(hObject);

然后在GUIDE中创建一个新的GUI，将上面的代码复制到.m文件中，并在GUI中添加一个Axes（用于显示视频）和一个Static Text（用于显示坐标）。最后将按钮的回调函数链接到相应的.m文件中的函数即可。