matlabappdesigner边缘检测

您可以使用MATLAB App Designer创建一个GUI应用程序来执行边缘检测。以下是一个简单的例子：

1. 打开MATLAB并创建一个新的App Designer应用程序。
2. 在设计视图中添加一个Axes和两个按钮。
3. 在Axes中加载一张图像。
4. 在第一个按钮的回调函数中，使用edge函数执行边缘检测并将结果显示在Axes中。
5. 在第二个按钮的回调函数中，清除Axes并重新加载原始图像。

下面是一个可能的代码示例：

classdef EdgeDetectionApp < matlab.apps.AppBase

    % Properties
    properties (Access = private)
        Image % The original image
        EdgeImage % The edge-detected image
    end

    % UI components
    properties (Access = public)
        UIFigure
        ImageAxes
        DetectEdgesButton
        ResetButton
    end

    % App initialization
    methods (Access = private)
        function loadImage(app, imagePath)
            % Load an image from disk
            app.Image = imread(imagePath);
            imshow(app.Image, 'Parent', app.ImageAxes);
        end

        function detectEdges(app)
            % Detect edges in the current image
            app.EdgeImage = edge(app.Image);
            imshow(app.EdgeImage, 'Parent', app.ImageAxes);
        end

        function reset(app)
            % Reset the UI to the original image
            imshow(app.Image, 'Parent', app.ImageAxes);
            app.EdgeImage = [];
        end
    end

    % Callbacks
    methods (Access = private)

        % Code that executes after component creation
        function startupFcn(app)
            % Load the default image
            app.loadImage('example_image.jpg');
        end

        % Button pushed function: DetectEdgesButton
        function detectEdgesButtonPushed(app, ~)
            app.detectEdges();
        end

        % Button pushed function: ResetButton
        function resetButtonPushed(app, ~)
            app.reset();
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = EdgeDetectionApp

            % Create UIFigure and components
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'Edge Detection';

            app.ImageAxes = uiaxes(app.UIFigure);
            app.ImageAxes.Position = [50 100 400 300];

            app.DetectEdgesButton = uibutton(app.UIFigure, 'push');
            app.DetectEdgesButton.Position = [500 200 100 22];
            app.DetectEdgesButton.Text = 'Detect Edges';
            app.DetectEdgesButton.ButtonPushedFcn = createCallbackFcn(app, @detectEdgesButtonPushed, true);

            app.ResetButton = uibutton(app.UIFigure, 'push');
            app.ResetButton.Position = [500 150 100 22];
            app.ResetButton.Text = 'Reset';
            app.ResetButton.ButtonPushedFcn = createCallbackFcn(app, @resetButtonPushed, true);

            % Initialize the app
            app.startupFcn();
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure);
        end
    end
end

要运行这个应用程序，请保存上述代码为一个.m文件，并在MATLAB中执行以下命令：

>> app = EdgeDetectionApp;

这将打开一个新的窗口，其中包含加载的图像和两个按钮。单击“Detect Edges”按钮将执行边缘检测并显示结果。单击“Reset”按钮将恢复原始图像。