matlab低照度降噪和增强gui代码

以下是一个基于 MATLAB GUI 的低照度图像降噪和增强代码示例：

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

% Last Modified by GUIDE v2.5 17-Aug-2021 19:56:48

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

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

% Update handles structure
guidata(hObject, handles);

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


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

[filename, pathname] = uigetfile({'*.jpg';'*.png';'*.bmp';'*.tif';'*.gif'}, 'Choose an image file');
if isequal(filename,0) || isequal(pathname,0)
    return;
else
    image = imread(fullfile(pathname, filename));
    axes(handles.OriginalImage);
    imshow(image);
    handles.image = image;
    guidata(hObject,handles);
end


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

% Get the original image
image = handles.image;

% Convert the image to grayscale
image = rgb2gray(image);

% Perform the low light enhancement using guided filter
image_enhanced = im2double(image);
image_enhanced = guidedfilter(image_enhanced, image_enhanced, 'radius', 32, 'epsilon', 0.01);

% Show the enhanced image
axes(handles.EnhancedImage);
imshow(image_enhanced);


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

[filename, pathname] = uiputfile({'*.jpg';'*.png';'*.bmp';'*.tif'}, 'Save the enhanced image', 'enhanced_image.jpg');
if isequal(filename,0) || isequal(pathname,0)
    return;
else
    % Get the enhanced image
    image_enhanced = getimage(handles.EnhancedImage);

    % Save the enhanced image
    imwrite(image_enhanced, fullfile(pathname, filename));
end

该代码基于 MATLAB 的 GUI 工具箱，并使用 guided filter 对低照度图像进行降噪和增强。用户可以通过该 GUI 选择输入图像、进行处理和保存输出图像。