一、简介
基于matlab GUI数字图像处理：灰度化、二值化、中值滤波、低通滤波、均值滤波、高斯滤波、直方图、腐蚀、canny、sobel。
二、源代码
function varargout = image_processing(varargin)
% IMAGE_PROCESSING MATLAB code for image_processing.fig
% IMAGE_PROCESSING, by itself, creates a new IMAGE_PROCESSING or raises the existing
% singleton*.
%
% H = IMAGE_PROCESSING returns the handle to a new IMAGE_PROCESSING or the handle to
% the existing singleton*.
%
% IMAGE_PROCESSING('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in IMAGE_PROCESSING.M with the given input arguments.
%
% IMAGE_PROCESSING('Property','Value',...) creates a new IMAGE_PROCESSING or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before image_processing_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to image_processing_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 image_processing
% Last Modified by GUIDE v2.5 22-Apr-2017 15:16:04
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @image_processing_OpeningFcn, ...
'gui_OutputFcn', @image_processing_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 image_processing is made visible.
function image_processing_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 image_processing (see VARARGIN)
% Choose default command line output for image_processing
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes image_processing wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = image_processing_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
axis off;
varargout{1} = handles.output;
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
global M;
ima_gray=image_gray(M);
imshow(ima_gray);
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
global M;
ima_gray=image_gray(M);
[i,j]=size(ima_gray);
prompt = {'请输入阈值:'};
dlg_title = '提示';
num_lines = 1;
def = {'5'};
value_i = inputdlg(prompt,dlg_title,num_lines);
threshold_value=str2double(value_i);
for a=1:i
for b=1:j
if ima_gray(a,b)<threshold_value
ima_gray(a,b)=0;
else
ima_gray(a,b)=1;
end
end
end
ima_gray=mat2gray(ima_gray);
imshow(ima_gray);
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
global M;
ima_red=M(:,:,1);
ima_green=M(:,:,2);
ima_blue=M(:,:,3);
img_red=mid_filter(ima_red,6);
img_green=mid_filter(ima_green,6);
img_blue=mid_filter(ima_blue,6);
image(:,:,1)=img_red;
image(:,:,2)=img_green;
image(:,:,3)=img_blue;
imshow(image);
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
global M;
if size(M,1)<2;
msgbox('请先打开图片');
end
ima_red=M(:,:,1);
ima_green=M(:,:,2);
ima_blue=M(:,:,3);
processing_red=low_pass_filter(ima_red);
processing_green=low_pass_filter(ima_green);
processing_blue=low_pass_filter(ima_blue);
image(:,:,1)=processing_red;
image(:,:,2)=processing_green;
image(:,:,3)=processing_blue;
imshow(image);
% hObject handle to pushbutton4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
global M;
prompt = {'请输入滤波核大小:'};
dlg_title = '提示';
num_lines = 1;
def = {'5'};
value_i = inputdlg(prompt,dlg_title,num_lines);
N=str2double(value_i);
d=avg_filter(M,N);
imshow(d);
% hObject handle to pushbutton5 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
global M;
%滤波核大小
ima_red=M(:,:,1);
ima_green=M(:,:,2);
ima_blue=M(:,:,3);
prompt = {'请输入滤波器大小:'};
dlg_title = '提示';
num_lines = 1;
value_i = inputdlg(prompt,dlg_title,num_lines);
N=str2double(value_i);
sigma=1.7;
img_red=image_gaussian(ima_red,sigma,N);
img_green=image_gaussian(ima_green,sigma,N);
img_blue=image_gaussian(ima_blue,sigma,N);
img(:,:,1)=img_red;
img(:,:,2)=img_green;
img(:,:,3)=img_blue;
imshow(img);
% hObject handle to pushbutton6 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
global M;
ima_red=M(:,:,1);
ima_green=M(:,:,2);
ima_blue=M(:,:,3);
histogram_red=histogram(ima_red);
histogram_green=histogram(ima_green);
histogram_blue=histogram(ima_blue);
figure,
subplot(1,3,1);plot(histogram_red),title('红色通道');
xlim([0 255])
subplot(1,3,2),plot(histogram_green),title('绿色通道');
xlim([0 255])
subplot(1,3,3),plot(histogram_blue),title('蓝色通道');
xlim([0 255])
% ima=imread('1.jpg');
% ima_gaussian=image_gaussian(ima,2,500);
% hObject handle to pushbutton7 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)%每个通道不一样，不能按照一个通道来
global M;
ima_gray=image_gray(M);
[i,j]=size(ima_gray);
threshold_value=150;
for a=1:i
for b=1:j
if ima_gray(a,b)<threshold_value
ima_gray(a,b)=0;
else
ima_gray(a,b)=1;
end
end
end
三、运行结果
四、备注
完整代码或者代写添加QQ 1564658423