需要关于在matlab中打开dicom文件的帮助吗

在matlab中打开dicom文件时，我得到了黑色图像

打开dicom文件的代码

[real_image,real_path] = uigetfile( ...
{'*.*;','File Dicom (*.dcm)';},...
'Open Image');

if ~isequal(real_image,0)
handles.image = dicomread(fullfile(real_path,real_image));
guidata(hObject,handles);
axes(handles.axes1);
imshow(handles.image);

set(handles.text5,'String',real_image);
set(handles.text6,'String',real_path);

[row,column]=size(handles.image);
set(handles.text7,'String',row);
set(handles.text8,'String',column);

else
return;
end

---

我已经通过创建GUI（R2012b）并在按钮回调中插入代码来测试了您的代码，它运行良好

因此，我可以看到两种可能性： -您正在加载的

dcom

图像不知何故已损坏 -

dcom

图像很好，这是一个对比度问题

我会选择第二种可能性

我使用了从下载的

dcom

images“CARDIX”作为示例

加载这些图像时，其中一个图像显示为黑色，轴的

clim

为

[0 65535

]

如果将

clim

范围分别设置为dcom图像数据值的

最小值和
最大值，则可以开始“查看内容”

要进一步增强图像的可见性，可以使用


在以下内容中，您可以找到GUI的
.m
文件：可以通过
按钮运行
IMCONTRUST tool

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

% Last Modified by GUIDE v2.5 26-Dec-2015 10:44:54

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

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = adjust_contrast_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)


[real_image,real_path] = uigetfile( ...
   {'*.dcm;','File Dicom (*.dcm)';},...
   'Open Image');

if ~isequal(real_image,0)
   handles.image = dicomread(fullfile(real_path,real_image));
   guidata(hObject,handles);
   axes(handles.axes1);
   imshow(handles.image);

   set(handles.text5,'String',real_image);
   set(handles.text6,'String',real_path);

   [row,column]=size(handles.image);
   set(handles.text7,'String',row);
   set(handles.text8,'String',column);

else
   return;
end
% Set the "Clim" scale to the [min max] image values
set(gca,'clim',[min(min(handles.image)) max(max(handles.image))])


% --- 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)

imcontrast

在下图中，您可以看到：
-显示为已加载的“黑色”图像
-更新
clim
范围后的第一个增强
-使用
imcontrast工具获得的增强功能

注意：您可以从MATLAB Central下载

希望这有帮助

我已经通过创建GUI（R2012b）并将代码插入按钮回调来测试您的代码，它运行良好

因此，我可以看到两种可能性：
-您正在加载的
dcom
图像不知何故已损坏
-
dcom
图像很好，这是一个对比度问题

我会选择第二种可能性

我使用了从下载的
dcom
images“CARDIX”作为示例

加载这些图像时，其中一个图像显示为黑色，轴的
clim
为
[0 65535
]

如果将
clim
范围分别设置为dcom图像数据值的
最小值和
最大值，则可以开始“查看内容”

要进一步增强图像的可见性，可以使用


在以下内容中，您可以找到GUI的
.m
文件：可以通过
按钮运行
IMCONTRUST tool

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

% Last Modified by GUIDE v2.5 26-Dec-2015 10:44:54

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

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = adjust_contrast_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)


[real_image,real_path] = uigetfile( ...
   {'*.dcm;','File Dicom (*.dcm)';},...
   'Open Image');

if ~isequal(real_image,0)
   handles.image = dicomread(fullfile(real_path,real_image));
   guidata(hObject,handles);
   axes(handles.axes1);
   imshow(handles.image);

   set(handles.text5,'String',real_image);
   set(handles.text6,'String',real_path);

   [row,column]=size(handles.image);
   set(handles.text7,'String',row);
   set(handles.text8,'String',column);

else
   return;
end
% Set the "Clim" scale to the [min max] image values
set(gca,'clim',[min(min(handles.image)) max(max(handles.image))])


% --- 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)

imcontrast

在下图中，您可以看到：
-显示为已加载的“黑色”图像
-更新
clim
范围后的第一个增强
-使用
imcontrast工具获得的增强功能

注意：您可以从MATLAB Central下载

希望这有帮助