【图像分割】基于计算机视觉实现医学影像分割含GUI界面
【图像分割】基于计算机视觉实现医学影像分割含GUI界面
TT_Matlab
博主简介:擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真,完整matlab代码或者程序定制加qq1575304183。
1 简介
图像分割是图像处理和计算机视觉中的关键技术之一.它有助于提高基于图像内容的特定目标定位的准确性,在图像的编辑抠图等技术中离不开正确的分割.图像分割的方法浩如烟海,但要实现一个具有通用性的分割技术还面临着很大困难.随着计算机视觉,现代生理学,神经心理学,物体识别,图像处理等学科的综合发展,基于视觉注意的图像分割技术日益引起了人们的普遍关注.它属于国际前沿课题,其理论成果对智能研究和发展具有重要的贡献.在遥感气象服务,医学影像分析,机械制造,产品检测,军事研究,交通图像分析等领域有着广泛的应用前景.本文基于计算机视觉实现医学影像分割。
2 部分代码
function varargout = brain_ysw(varargin)
%
BRAIN_YSW MATLAB code
for
brain_ysw.fig
%
BRAIN_YSW, by itself, creates a new BRAIN_YSW or raises the existing
%
singleton*.
%
%
H = BRAIN_YSW returns the handle to a new BRAIN_YSW or the handle to
%
the existing singleton*.
%
%
BRAIN_YSW(
’CALLBACK’
,hObject,eventData,handles,...) calls the
local
%
function
named CALLBACK
in
BRAIN_YSW.M with the given input arguments.
%
%
BRAIN_YSW(
’Property’
,
’Value’
,...) creates a new BRAIN_YSW or raises the
%
existing singleton*. Starting from the left, property value pairs are
%
applied to the GUI before brain_ysw_OpeningFcn gets called. An
%
unrecognized property name or invalid value makes property application
%
stop. All inputs are passed to brain_ysw_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 brain_ysw
%
Last Modified by GUIDE v2.5 10-Jun-2015 13:34:14
%
Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct(’gui_Name’, mfilename, ...
’gui_Singleton’, gui_Singleton, ...
’gui_OpeningFcn’, @brain_ysw_OpeningFcn, ...
’gui_OutputFcn’, @brain_ysw_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 brain_ysw is made visible.
function brain_ysw_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 brain_ysw (see VARARGIN)
%
Choose default command line output for brain_ysw
handles.output = hObject;
%
Update handles structure
guidata(hObject, handles);
%
UIWAIT makes brain_ysw wait for user response (see UIRESUME)
%
uiwait(handles.figure1);
%
--- Outputs from this function are returned to the command line.
function varargout = brain_ysw_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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
%
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)
warning off
global im_org data
load(’data.mat’); % 加载MRI图像数据,整个头颅图像
num = str2num(get(handles.edit1,’string’));
%
从13 - 31 (32-44取反)
if num <13 || num>31
msgbox(’num数字不对!num在13-31之间!!!’);
end
im_org = data(:,:,num); % 第 i 帧图像
axes(handles.axes1)
imshow(im_org);title(’原始图像’); % 显示原图像
%
--- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
%
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)
warning off
global im_org data bw
max_level = double(max(data(:)));
if size(im_org,3)==1
im = im_org;
else
im = rgb2gray(im_org);
end
im = permute(im,[3 2 1]); % 重置矩阵的维数
for i=1:3
im = flipdim(im,i);
end
im(im<=40/255) = 0; % 剔除灰度值低的部分(脑袋和背景)
im(im>
=100/255) = 0; % 剔除灰度值高的部分(颅骨和其他的组织)
im(:,:,1) = 0; % 剔除大脑灰白质下面的部分灰度部分
blk = ones([1 7 7]); % 块操作
%
im = imerode(im,blk); % 腐蚀
%
分离大脑脑组织
lev = graythresh(double(im)/max_level) * max_level; % 阈值
bw = (im>=lev); % 二值化
bw = imrotate(squeeze(bw),90); % 变异复原
axes(handles.axes2)
imshow(bw);title(’二值化图像’);
%
--- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
%
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)
axes(handles.axes2)
imshow(L);title(’灰白质分割图’)
%
--- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
%
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)
clc,clear,close all
function edit1_Callback(hObject, eventdata, handles)
%
hObject handle to edit1 (see GCBO)
%
eventdata reserved - to be defined in a future version of MATLAB
%
handles structure with handles and user data (see GUIDATA)
%
Hints: get(hObject,’
String
’) returns contents of edit1 as text
%
str2double(get(hObject,’
String
’)) returns contents of edit1 as a double
%
--- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
%
hObject handle to edit1 (see GCBO)
%
eventdata reserved - to be defined in a future version of MATLAB
%
handles empty - handles not created until after all CreateFcns called
%
Hint: edit controls usually have a white background on Windows.
%
See ISPC and COMPUTER.
if ispc && isequal(get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColor’))
set(hObject,’BackgroundColor’,’white’);
end
3 仿真结果
4 参考文献
[1]李灿飞. 计算机视觉中图像分割技术的研究[D]. 湖南大学, 2005.
博主简介:擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真,相关matlab代码问题可私信交流。
部分理论引用网络文献,若有侵权联系博主删除。
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