麻烦整理一份matlab gui图像处理重用函数

好的，下面整理了一份MATLAB GUI图像处理重用函数的示例代码：

function varargout = ImageProcessingGUI(varargin)
% IMAGEPROCESSINGGUI MATLAB code for ImageProcessingGUI.fig
%      IMAGEPROCESSINGGUI, by itself, creates a new IMAGEPROCESSINGGUI or raises the existing
%      singleton*.
%
%      H = IMAGEPROCESSINGGUI returns the handle to a new IMAGEPROCESSINGGUI or the handle to
%      the existing singleton*.
%
%      IMAGEPROCESSINGGUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in IMAGEPROCESSINGGUI.M with the given input arguments.
%
%      IMAGEPROCESSINGGUI('Property','Value',...) creates a new IMAGEPROCESSINGGUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before ImageProcessingGUI_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to ImageProcessingGUI_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 ImageProcessingGUI

% Last Modified by GUIDE v2.5 29-May-2021 20:22:11

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @ImageProcessingGUI_OpeningFcn, ...
                   'gui_OutputFcn',  @ImageProcessingGUI_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 ImageProcessingGUI is made visible.
function ImageProcessingGUI_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 ImageProcessingGUI (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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

% Initialize variables
handles.originalImage = [];
handles.processedImage = [];
handles.ROI = [];

% Update handles structure
guidata(hObject, handles);

% --- Outputs from this function are returned to the command line.
function varargout = ImageProcessingGUI_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 loadImageButton.
function loadImageButton_Callback(hObject, eventdata, handles)
% hObject    handle to loadImageButton (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Open file dialog to choose image file
[filename, pathname] = uigetfile({'*.jpg;*.png;*.bmp;*.tif'}, 'Select Image File');
if isequal(filename,0) || isequal(pathname,0)
    return;
end

% Load image
handles.originalImage = imread(fullfile(pathname, filename));

% Display image
axes(handles.originalImageAxes);
imshow(handles.originalImage);

% Update handles structure
guidata(hObject, handles);


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

% Reset original image and processed image
handles.originalImage = [];
handles.processedImage = [];

% Clear axes
cla(handles.originalImageAxes, 'reset');
cla(handles.processedImageAxes, 'reset');

% Update handles structure
guidata(hObject, handles);


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

% Check if image is loaded
if isempty(handles.originalImage)
    return;
end

% Convert to grayscale
handles.processedImage = rgb2gray(handles.originalImage);

% Display processed image
axes(handles.processedImageAxes);
imshow(handles.processedImage);

% Update handles structure
guidata(hObject, handles);


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

% Check if image is loaded
if isempty(handles.originalImage)
    return;
end

% Convert to grayscale if necessary
if size(handles.originalImage, 3) == 3
    handles.processedImage = rgb2gray(handles.originalImage);
else
    handles.processedImage = handles.originalImage;
end

% Calculate threshold value
level = graythresh(handles.processedImage);

% Threshold image
handles.processedImage = imbinarize(handles.processedImage, level);

% Display processed image
axes(handles.processedImageAxes);
imshow(handles.processedImage);

% Update handles structure
guidata(hObject, handles);


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

% Check if image is loaded
if isempty(handles.originalImage)
    return;
end

% Get ROI from user
h = imrect(handles.originalImageAxes);
handles.ROI = wait(h);

% Crop image
handles.processedImage = imcrop(handles.originalImage, handles.ROI);

% Display processed image
axes(handles.processedImageAxes);
imshow(handles.processedImage);

% Update handles structure
guidata(hObject, handles);


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

% Check if image is loaded
if isempty(handles.originalImage)
    return;
end

% Open file dialog to choose save location
[filename, pathname] = uiputfile({'*.jpg;*.png;*.bmp;*.tif'}, 'Save Image As');
if isequal(filename,0) || isequal(pathname,0)
    return;
end

% Save processed image
imwrite(handles.processedImage, fullfile(pathname, filename));

% Update handles structure
guidata(hObject, handles);

这是一个简单的图像处理GUI，包含以下功能：

- 加载图像
- 灰度化
- 阈值分割
- 裁剪
- 保存图像

可以根据需要进行添加或修改。