help image processing code

Hi all

I want to display multiple images using GUI. I have 135 image. i want load 135 images in axes, then when i slide, it will show the image from 1 to 135. This is my code that i know to read 135 image:

P = zeros(256, 256, 135);

for K = 1 : 135
   petname = sprintf('PET_I1001_PT%03d.dcm', K);
   P(:,:,K) = dicomread(petname);
end

how to me write the command for 'load image button' and 'slider' in m file ??

hope anyone can help me

Answer 1

[Image Analyst]

Set up your scroll bar to have 135 as the max and 1 as the min. Then in the scrollbar callback function:

scrollBarValue = round(handles.scrollbar1.Value);
petName = sprintf('PET_I1001_PT%03d.dcm', scrollBarValue);
fullFileName = fullfile(folder, petName);
thisImage = dicomread(fullFileName);
imshow(thisImage);

No loop is needed.

[mohd akmal masud]

then what is the command for load image??

[Image Analyst]

This line is the line that loads the image from disk into a variable:

thisImage = dicomread(fullFileName);

This is the line that loads the image from a variable onto a rectangle on your screen:

imshow(thisImage);

[mohd akmal masud]

this is my code, but still not work

        function varargout = gui123(varargin)
        % GUI123 MATLAB code for gui123.fig
        %      GUI123, by itself, creates a new GUI123 or raises the existing
        %      singleton*.
        %
        %      H = GUI123 returns the handle to a new GUI123 or the handle to
        %      the existing singleton*.
        %
        %      GUI123('CALLBACK',hObject,eventData,handles,...) calls the local
        %      function named CALLBACK in GUI123.M with the given input arguments.
        %
        %      GUI123('Property','Value',...) creates a new GUI123 or raises the
        %      existing singleton*.  Starting from the left, property value pairs are
        %      applied to the GUI before gui123_OpeningFcn gets called.  An
        %      unrecognized property name or invalid value makes property application
        %      stop.  All inputs are passed to gui123_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 gui123

        % Last Modified by GUIDE v2.5 28-Feb-2018 00:33:09

        % Begin initialization code - DO NOT EDIT
        gui_Singleton = 1;
        gui_State = struct('gui_Name',       mfilename, ...
                           'gui_Singleton',  gui_Singleton, ...
                           'gui_OpeningFcn', @gui123_OpeningFcn, ...
                           'gui_OutputFcn',  @gui123_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 gui123 is made visible.
        function gui123_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 gui123 (see VARARGIN)

        % Choose default command line output for gui123
        handles.output = hObject;

        % Update handles structure
        guidata(hObject, handles);

        % UIWAIT makes gui123 wait for user response (see UIRESUME)
        % uiwait(handles.figure1);

        % --- Outputs from this function are returned to the command line.
        function varargout = gui123_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 slider movement.
        function slider1_Callback(hObject, eventdata, handles)
        % hObject    handle to slider1 (see GCBO)
        % eventdata  reserved - to be defined in a future version of MATLAB
        % handles    structure with handles and user data (see GUIDATA)
        scrollBarValue = round(handles.scrollbar1.Value);
        petName = sprintf('PET_I1001_PT%03d.dcm', scrollBarValue);
        fullFileName = fullfile('D:\Images PET and CT\CT', petName);
        thisImage = dicomread(fullFileName);
        imshow(thisImage);
        % Hints: get(hObject,'Value') returns position of slider
        %        get(hObject,'Min') and get(hObject,'Max') to determine range of slider

        % --- Executes during object creation, after setting all properties.
        function slider1_CreateFcn(hObject, eventdata, handles)
        % hObject    handle to slider1 (see GCBO)
        % eventdata  reserved - to be defined in a future version of MATLAB
        % handles    empty - handles not created until after all CreateFcns called

        % Hint: slider controls usually have a light gray background.
        if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
            set(hObject,'BackgroundColor',[.9 .9 .9]);
        end

          if true
            % code
          end

[mohd akmal masud]

is it true like this? but the GUI appear as picture attach

function varargout = gui123(varargin)
% GUI123 MATLAB code for gui123.fig
%      GUI123, by itself, creates a new GUI123 or raises the existing
%      singleton*.
%
%      H = GUI123 returns the handle to a new GUI123 or the handle to
%      the existing singleton*.
%
%      GUI123('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUI123.M with the given input arguments.
%
%      GUI123('Property','Value',...) creates a new GUI123 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before gui123_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to gui123_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 gui123

% Last Modified by GUIDE v2.5 28-Feb-2018 00:52:21

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @gui123_OpeningFcn, ...
                   'gui_OutputFcn',  @gui123_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 gui123 is made visible.
function gui123_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 gui123 (see VARARGIN)

% Choose default command line output for gui123
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes gui123 wait for user response (see UIRESUME)
% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.
function varargout = gui123_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 slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
scrollBarValue = round(handles.scrollbar1.Value);
petName = sprintf('PET_I1001_PT%03d.dcm', scrollBarValue);
fullFileName = fullfile('D:\Images PET and CT\CT', petName);
thisImage = dicomread(fullFileName);
imshow(thisImage);
% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider

% --- Executes during object creation, after setting all properties.
function slider1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end