gusucode.com > vision工具箱matlab源码程序 > vision/+vision/+internal/+calibration/+tool/ImageCaptureTab.m
classdef ImageCaptureTab < vision.internal.uitools.AbstractTab
% ImageCaptureTab Defines key UI elements of the Image Capture Tab of Camera Calibrator App
%
% This class defines all key UI elements and sets up callbacks that
% point to methods inside the CameraCalibrationTool class.
% Copyright 2014 The MathWorks, Inc.
properties (Access=private)
%% Device Section
DeviceComboBox
PropertiesButton
PropertiesPanel
%% Settings Section
CaptureIntervalEdit
CaptureIntervalSlider
% Number of images
NumImagesCaptureEdit
NumImagesCaptureSlider
SaveLocationEdit
CurrentSaveLocation
BrowseButton
%% Capture Section
CaptureButton
%% Close Section
CloseButton
%% Listeners
CaptureIntervalSliderListener
CaptureIntervalEditListener
SaveLocationEditListener
NumImagesCaptureEditListener
NumImagesCaptureSliderListener
% Track button status
CurrentButtonState
end
properties (GetAccess=public, SetAccess=private)
% Current status of Image Capture Tab
CaptureFlag
% Store device name
SavedCamera
% All images that image capture tab has acquired in a session
% (emptied when you close Image Capture Tab).
Images
% Corresponds to images captured in current Start/Stop
NumImagesCaptured
% Flag to indicate if any images were captured since tab was open
AnyImagesCaptured
% Icons for images to show up in the Data Browser
ImageIcons
% Labels for images to show up in the Data Browser
ImageLabels
% Index where the unsaved images begin.
StartIndex
% Timer object for capture
TimerObj
% Timer object for status text
StatusTimerObj
TimeRemaining
% @TODO: Timer object for countdown
end
properties (Access=private)
CameraObject = []
PreviewObject
ToolGroupName
end
properties (Constant)
MinInterval = 1
MaxInterval = 60
MinImages = 2
MaxImages = 100
end
events
% Event for Closing Image Capture Tab.
CloseTab
end
methods (Access=public)
% Constructor
function this = ImageCaptureTab(tool)
this = this@vision.internal.uitools.AbstractTab(tool, ...
vision.getMessage('vision:caltool:ImageCaptureTabName'), ...
vision.getMessage('vision:caltool:ImageCaptureTab'));
this.CaptureFlag = false;
this.ToolGroupName = tool.getGroupName();
this.AnyImagesCaptured = false;
% Initialize
this.reset();
this.createWidgets();
this.installListeners();
end
% Implement as inheriting from AbstractTab - do not see use at all
% now.
function testers = getTesters(~)
testers = [];
end
% Creates and starts a preview.
function createDevice(this)
if strcmpi(this.SavedCamera, this.DeviceComboBox.SelectedItem)
constructWithResolution = true;
else
constructWithResolution = false;
this.PropertiesPanel = [];
end
this.updateDeviceSection(this.DeviceComboBox, constructWithResolution);
end
% Close preview
function closePreview(this)
if ~isempty(this.CameraObject) && isvalid(this.CameraObject)
closePreview(this.CameraObject); % Stops the timer
end
end
% Preview
function preview(this)
if ~isempty(this.CameraObject) && isvalid(this.CameraObject)
[width, height] = this.getResolution;
tool = this.getParent;
drawImage(tool.ImagePreviewDisplay, width, height);
replaceImage(tool.ImagePreviewDisplay, width, height);
preview(this.CameraObject, tool.ImagePreviewDisplay.ImHandle);
end
end
% Update property states.
function updatePropertyStates(this)
% Disable ability to change devices if images have been
% captured.
if this.AnyImagesCaptured
this.DeviceComboBox.Enabled = false;
this.DeviceComboBox.Peer.setToolTipText(vision.getMessage('vision:caltool:DisabledCameraDropDownToolTip'));
if ~isempty(this.PropertiesPanel)
this.PropertiesPanel.DevicePropObjects.Resolution.ComboControl.Enabled = false;
this.PropertiesPanel.DevicePropObjects.Resolution.ComboControl.Peer.setToolTipText(vision.getMessage('vision:caltool:DisabledResolutionDropDownToolTip'));
end
else
this.DeviceComboBox.Enabled = true;
this.DeviceComboBox.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledCameraDropDownToolTip'));
if ~isempty(this.PropertiesPanel)
this.PropertiesPanel.DevicePropObjects.Resolution.ComboControl.Enabled = true;
this.PropertiesPanel.DevicePropObjects.Resolution.ComboControl.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledResolutionDropDownToolTip'));
end
end
end
function resetAll(this)
this.AnyImagesCaptured = false;
% Reset properties panel here.
this.PropertiesPanel = [];
this.SavedCamera = [];
reset(this);
end
end
methods (Access=private)
function createWidgets(this)
% Creates the widgets on the toolstrip
%% Create Device Widgets
createDeviceWidgets(this);
%% Create Settings Widgets
createSettingsWidgets(this);
%% Create Capture Widgets
createCaptureWidgets(this);
%% Create Close Widgets
createCloseWidgets(this);
%% Update button states.
updateButtonStates(this, this.CurrentButtonState);
end
function createDeviceWidgets(this)
%% Toolstrip sections
deviceSection = toolpack.desktop.ToolSection('DeviceSection',...
vision.getMessage('vision:caltool:DeviceSection'));
devicePanel = toolpack.component.TSPanel(...
'10px,f:p,10px,f:p,10px',...
'10px,f:p,10px,f:p,10px');
devicePanel.Name = 'DevicePanel';
% Device drop down
deviceLabel = toolpack.component.TSLabel(vision.getMessage('vision:caltool:DeviceDropDown'));
% Get available webcams
cams = this.enumerateCameras;
this.DeviceComboBox = toolpack.component.TSComboBox(cams);
this.DeviceComboBox.Name = 'DeviceCombo';
this.DeviceComboBox.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledCameraDropDownToolTip'));
% Create buttons.
this.PropertiesButton = toolpack.component.TSButton(vision.getMessage('vision:caltool:PropertiesButton'),toolpack.component.Icon.SETTINGS_16);
this.PropertiesButton.Name = 'PropertiesButton';
this.PropertiesButton.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledCameraPropertiesToolTip'));
% Add labels to panel.
devicePanel.add(deviceLabel, 'xy(2,2)');
devicePanel.add(this.DeviceComboBox, 'xy(4,2)');
devicePanel.add(this.PropertiesButton, 'xyw(2,4,3)');
% Add the section to the Panel.
add(deviceSection, devicePanel);
tab = this.getToolTab();
add(tab,deviceSection);
end
function createSettingsWidgets(this)
settingsSection = toolpack.desktop.ToolSection('Settings',...
vision.getMessage('vision:caltool:SettingsSection'));
% Create the panel.
settingsPanel = toolpack.component.TSPanel('10px,f:p,5px,f:p,5px,f:p,5px,f:p,10px', '1px,f:p,3px,f:p,3px,f:p,1px');
% Create Save location widgets.
saveLocationLabel = toolpack.component.TSLabel(vision.getMessage('vision:caltool:SaveLocationEdit'));
if (this.hasWritePermissions(pwd, false))
startDir = pwd;
else
startDir = '';
end
this.CurrentSaveLocation = startDir;
this.SaveLocationEdit = toolpack.component.TSTextField(startDir, 4);
this.SaveLocationEdit.Name = 'SaveLocationEdit';
this.SaveLocationEdit.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledSaveLocationToolTip'));
this.BrowseButton = toolpack.component.TSButton(vision.getMessage('vision:caltool:BrowseButton'), toolpack.component.Icon.OPEN_16);
this.BrowseButton.Name = 'BrowseButton';
this.BrowseButton.Orientation = toolpack.component.ButtonOrientation.HORIZONTAL;
this.BrowseButton.Peer.setToolTipText(vision.getMessage('vision:caltool:BrowseButtonToolTip'));
add(settingsPanel, saveLocationLabel, 'xy(2,2)');
add(settingsPanel, this.SaveLocationEdit, 'xyw(4,2,3)');
add(settingsPanel, this.BrowseButton, 'xy(8,2)');
% Create the label.
captureIntervalLabel = toolpack.component.TSLabel(vision.getMessage('vision:caltool:CaptureIntervalEdit'));
% Create slider component for capture interval control.
defValue = 5;
% Set slider tick spacing and create label table.
this.CaptureIntervalSlider = toolpack.component.TSSlider(this.MinInterval, this.MaxInterval, defValue);
this.CaptureIntervalSlider.MajorTickSpacing = 5;
this.CaptureIntervalSlider.MinorTickSpacing = 1;
this.CaptureIntervalSlider.Name = 'CaptureIntervalSlider';
this.CaptureIntervalSlider.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledCaptureIntervalToolTip'));
% Create text field to enter slider.
this.CaptureIntervalEdit = toolpack.component.TSTextField(num2str(defValue), 5);
this.CaptureIntervalEdit.Name = 'CaptureIntervalEdit';
this.CaptureIntervalEdit.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledCaptureIntervalToolTip'));
add(settingsPanel, captureIntervalLabel, 'xy(2,4)');
add(settingsPanel, this.CaptureIntervalEdit, 'xy(4,4)');
add(settingsPanel, this.CaptureIntervalSlider, 'xy(6,4)');
% Create number images to capture label
numImagesCaptureLabel = toolpack.component.TSLabel(vision.getMessage('vision:caltool:ImagesToCaptureEdit'));
this.NumImagesCaptureEdit = toolpack.component.TSTextField(num2str(20), 4);
this.NumImagesCaptureEdit.Name = 'NumImagesCaptureEdit';
this.NumImagesCaptureEdit.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledNumImagesCaptureToolTip'));
% Create slider component for num images to capture control.
defValue = 20;
% Set slider tick spacing and create label table.
this.NumImagesCaptureSlider = toolpack.component.TSSlider(this.MinImages, this.MaxImages, defValue);
this.NumImagesCaptureSlider.MajorTickSpacing = 5;
this.NumImagesCaptureSlider.MinorTickSpacing = 1;
this.NumImagesCaptureSlider.Name = 'NumImagesCapture';
this.NumImagesCaptureSlider.Peer.setToolTipText(vision.getMessage('vision:caltool:EnabledNumImagesCaptureToolTip'));
add(settingsPanel, numImagesCaptureLabel, 'xy(2,6)');
add(settingsPanel, this.NumImagesCaptureEdit, 'xy(4,6)');
add(settingsPanel, this.NumImagesCaptureSlider, 'xy(6,6)');
% Add the section to the Panel.
add(settingsSection, settingsPanel);
tab = this.getToolTab();
add(tab,settingsSection);
end
function createCaptureWidgets(this)
this.CaptureButton = toolpack.component.TSButton(vision.getMessage('vision:caltool:StartCaptureButton'),toolpack.component.Icon.RUN_24);
this.CaptureButton.Name = 'CaptureButton';
this.CaptureButton.Orientation = toolpack.component.ButtonOrientation.VERTICAL;
if isempty(this.CurrentSaveLocation)
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:DisabledStartCaptureButtonToolTip'));
else
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:StartCaptureButtonToolTip'));
end
capturePanel = toolpack.component.TSPanel('f:p','f:p');
capturePanel.Name = 'CapturePanel';
add(capturePanel,this.CaptureButton,'xy(1,1)');
captureSection = toolpack.desktop.ToolSection('CaptureSection', ...
vision.getMessage('vision:caltool:CaptureSection'));
add(captureSection,capturePanel);
tab = this.getToolTab();
add(tab, captureSection);
end
function createCloseWidgets(this)
this.CloseButton = toolpack.component.TSButton(vision.getMessage('vision:caltool:CloseImageCaptureButton'),toolpack.component.Icon.CLOSE_24);
this.CloseButton.Name = 'CloseButton';
this.CloseButton.Orientation = toolpack.component.ButtonOrientation.VERTICAL;
this.CloseButton.Peer.setToolTipText(vision.getMessage('vision:caltool:CloseButtonToolTip'));
closePanel = toolpack.component.TSPanel('f:p','f:p');
closePanel.Name = 'ClosePanel';
add(closePanel,this.CloseButton,'xy(1,1)');
closeSection = toolpack.desktop.ToolSection('CloseSection', ...
vision.getMessage('vision:caltool:CloseSection'));
add(closeSection,closePanel);
tab = this.getToolTab();
add(tab,closeSection);
end
function installListeners(this)
% Device Section
addlistener(this.DeviceComboBox,'ActionPerformed',@(~,evt)this.updateDeviceSection(evt.Source));
addlistener(this.PropertiesButton,'ActionPerformed',@(~,~) this.cameraPropertiesCallback());
% Settings Section
this.CaptureIntervalSliderListener = addlistener(this.CaptureIntervalSlider,'StateChanged',@(hobj,evt)updateCaptureIntervalSlider(this,hobj));
this.CaptureIntervalEditListener = addlistener(this.CaptureIntervalEdit,'TextEdited',@(hobj,evt)updateCaptureIntervalEdit(this,hobj));
this.NumImagesCaptureEditListener = addlistener(this.NumImagesCaptureEdit,'TextEdited',@(hobj,evt)updateNumImagesCaptureEdit(this,hobj));
this.NumImagesCaptureSliderListener = addlistener(this.NumImagesCaptureSlider,'StateChanged',@(hobj,evt)updateNumImagesCaptureSlider(this,hobj));
this.SaveLocationEditListener = addlistener(this.SaveLocationEdit,'TextEdited',@(hobj, evt)this.updateSaveLocationEditCallback(hobj));
% Browse button
addlistener(this.BrowseButton,'ActionPerformed',@(es,ed)browseCallback(this));
% Capture button.
addlistener(this.CaptureButton,'ActionPerformed',@(es,ed)capture(this));
% Add listener for Closing image capture tab.
addlistener(this.CloseButton,'ActionPerformed',@(es,ed)closeTab(this));
end
end
%% Callback methods
methods(Access=private)
% Capture button callback
function capture(this)
if (~this.hasWritePermissions(this.SaveLocationEdit.Text, true))
return;
end
% Error for image size inconsistencies.
parent = getParent(this);
currentSession = parent.getSession;
if currentSession.hasAnyBoards
imInfoBase = imfinfo(currentSession.BoardSet.FullPathNames{1});
[width, height] = getResolution(this);
if (imInfoBase.Width ~= width) || ...
(imInfoBase.Height ~= height)
% issue an error message
uiwait(errordlg(vision.getMessage('vision:caltool:imageSizeInconsistent'), ...
vision.getMessage('vision:caltool:GenericErrorTitle'), ...
'modal'));
return;
end
end
this.CaptureFlag = ~this.CaptureFlag;
% Update the icons
updateCaptureIcon(this);
% Update toolstrip status.
updateToolstripStatus(this);
if this.CaptureFlag
% Mode: Starting a Capture
this.TimerObj = internal.IntervalTimer(this.CaptureIntervalSlider.Value);
addlistener(this.TimerObj, 'Executing', @(src, event)this.getSnapshot(src, event));
start(this.TimerObj);
% Start the status timer obj.
this.TimeRemaining = this.CaptureIntervalSlider.Value;
this.StatusTimerObj = internal.IntervalTimer(1);
addlistener(this.StatusTimerObj, 'Executing', @(src, event)this.statusTimerCallback(src, event));
start(this.StatusTimerObj);
% Update status text.
this.setStatusText();
else
% Mode: Stopping a capture
% Stop and delete timer object.
this.stopTimers;
% No images captured, return.
if (this.NumImagesCaptured==0)
this.reset();
return;
end
% Save images to file
lastFileID = this.getLastFileID;
fullPathFileNames = cell(1,this.NumImagesCaptured);
for idx = 1:this.NumImagesCaptured
fName = strcat('Image', num2str(lastFileID+idx), '.png');
fullPathFileName = fullfile(this.SaveLocationEdit.Text, fName);
% Index into Images array.
index = this.StartIndex + idx - 1;
imwrite (this.Images(:,:,:,index), fullPathFileName, 'png');
% Update the image strip.
this.makeLabel(fName, index);
% Create cell of full path file names.
fullPathFileNames{idx} = fullPathFileName;
% Create the icon.
icon = this.createIcon(this.Images(:,:,:,index), this.ImageLabels(index));
this.ImageIcons{index} = icon;
% Append images to the strip.
this.appendImagesToStrip(false);
end
% @TODO: Run detection and add to BoardSet
parent = getParent(this);
currentSession = parent.getSession;
prevBoardCount = 0;
if currentSession.hasAnyBoards
prevBoardCount = currentSession.BoardSet.NumBoards;
end
parent.addImagesFromCameraToSession(fullPathFileNames);
% Get the new board count.
currentBoardCount = 0;
if currentSession.hasAnyBoards
currentBoardCount = currentSession.BoardSet.NumBoards;
end
numBoardsAdded = currentBoardCount - prevBoardCount;
if (numBoardsAdded)
this.AnyImagesCaptured = true;
this.updatePropertyStates();
end
% Remove status text.
this.setStatusText();
% Reset Capture settings.
this.reset();
end
end
function setStatusText(this)
%% Set status text
statusStr{1} = vision.getMessage ('vision:caltool:NumImagesAcquired',...
num2str(this.NumImagesCaptured), this.NumImagesCaptureEdit.Text);
if (this.TimeRemaining == 1)
statusStr{2} = vision.getMessage ('vision:caltool:NextCaptureCountdownSingular',...
num2str(this.TimeRemaining));
else
statusStr{2} = vision.getMessage ('vision:caltool:NextCaptureCountdownPlural',...
num2str(this.TimeRemaining));
end
% Combine the two messages.
statusStr = strjoin(statusStr, ' ');
md = com.mathworks.mlservices.MatlabDesktopServices.getDesktop;
f = md.getFrameContainingGroup(this.ToolGroupName);
if this.CaptureFlag
javaMethodEDT('setStatusText', f, statusStr);
else
javaMethodEDT('setStatusText', f, '');
end
end
function cams = enumerateCameras(this)
% Initialize Button status flag.
this.CurrentButtonState = false;
% Find the location of webcam.
webcamLoc = which('webcam.m');
expectedLoc = fullfile(matlabroot, 'toolbox', 'matlab', 'webcam');
if strcmpi(expectedLoc, fileparts(webcamLoc))
cams = {vision.getMessage('vision:caltool:NoWebcamsDetected')};
uiwait(errordlg(vision.getMessage('vision:caltool:SupportPkgNotInstalledMsg'), ...
vision.getMessage('vision:caltool:GenericErrorTitle'), ...
'modal'));
return;
end
% Get available webcams
try
cams = webcamlist;
if isempty(cams)
cams = {vision.getMessage('vision:caltool:NoWebcamsDetected')};
return;
end
catch excep
cams = {vision.getMessage('vision:caltool:NoWebcamsDetected')};
uiwait(errordlg(excep.message, ...
vision.getMessage('vision:caltool:GenericErrorTitle'), ...
'modal'));
return;
end
% Cameras available - so enable them.
this.CurrentButtonState = true;
end
function getSnapshot(this, ~, evt)
% Acquire an image and store it.
imgCount = evt.ExecutionCount;
if isempty(this.Images)
this.Images(:,:,:,1) = snapshot(this.CameraObject);
else
this.Images(:,:,:,end+1) = snapshot(this.CameraObject);
end
if isempty(this.StartIndex)
this.StartIndex = size(this.Images, 4);
end
this.NumImagesCaptured = this.NumImagesCaptured + 1;
this.makeLabel; % Updates the require label to ImageLabels.
% Create icons
this.generateIcons;
% Append images to the strip.
this.appendImagesToStrip(true);
% Update status text.
this.setStatusText();
% Check if we have acquired completely.
if (imgCount >= this.NumImagesCaptureSlider.Value)
% Call capture to STOP acquisition.
capture(this);
end
end
function statusTimerCallback(this, ~, ~)
% Initiate countdown.
this.TimeRemaining = this.TimeRemaining - 1;
% Reset time.
if (this.TimeRemaining==0)
% Update status text.
this.setStatusText();
this.TimeRemaining = this.CaptureIntervalSlider.Value;
end
% Update status text.
this.setStatusText();
end
function appendImagesToStrip(this, showLatest)
% Update the image strip.
parent = getParent(this);
% Append image icons with existing board icons.
currentSession = parent.getSession;
if showLatest
if currentSession.hasAnyBoards
parent.updateImageStrip([currentSession.BoardSet.BoardIcons this.ImageIcons], length(currentSession.BoardSet.BoardIcons)+length(this.ImageIcons)-1);
else
parent.updateImageStrip(this.ImageIcons, length(this.ImageIcons)-1);
end
else
if currentSession.hasAnyBoards
parent.updateImageStrip([currentSession.BoardSet.BoardIcons this.ImageIcons], length(currentSession.BoardSet.BoardIcons));
else
parent.updateImageStrip(this.ImageIcons);
end
end
end
function fileID = getLastFileID(this)
fileID = 0;
out = dir(fullfile(this.SaveLocationEdit.Text, 'Image*.png'));
if ~isempty(out)
[~, fname]= cellfun(@fileparts, {out.name}, 'UniformOutput', false);
fNum = cellfun(@(s) (str2double(s(6:end))), fname, 'UniformOutput', false);
fileID = max([fNum{:}]);
end
end
function stopTimers(this)
% Stop timer object.
if ( ~isempty(this.TimerObj) && isvalid(this.TimerObj) )
stop(this.TimerObj);
this.TimerObj = [];
end
% Stop status timer object.
if ( ~isempty(this.StatusTimerObj) && isvalid(this.StatusTimerObj) )
stop(this.StatusTimerObj);
this.StatusTimerObj = [];
end
end
function closeTab(this)
% Reset the images.
this.reset();
% Delete the Camera Object.
if (~isempty(this.CameraObject) && isvalid(this.CameraObject) )
delete(this.CameraObject);
end
% Delete timer object.
this.stopTimers;
% Notify listener of Close operation.
notify(this,'CloseTab');
end
function reset(this)
% Reset the images.
this.NumImagesCaptured = 0;
this.Images = uint8([]);
this.ImageIcons = [];
this.ImageLabels = [];
this.StartIndex = [];
end
function browseCallback(this)
% Call to select directory
path = uigetdir(this.SaveLocationEdit.Text, vision.getMessage('vision:caltool:FolderOpenDialogTitle'));
if ~path % No selection was made.
return;
end
if hasWritePermissions(this, path, true)
% Update the path in the text field.
this.SaveLocationEdit.Text = path;
this.CurrentSaveLocation = this.SaveLocationEdit.Text;
this.CaptureButton.Enabled = true;
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:StartCaptureButtonToolTip'));
return;
end
end
function tf = hasWritePermissions(~, path, throwError)
tf = false;
% Create random folder name to try writing.
[~, tempFolderName] = fileparts(tempname);
dirExists = exist(path, 'dir');
if (dirExists)
writable = mkdir(fullfile(path, tempFolderName));
if writable
% Delete the temp dir.
rmdir(fullfile(path, tempFolderName));
tf = true;
return;
end
% @TODO: Error here.
if throwError
uiwait(errordlg(vision.getMessage('vision:caltool:PathWithInvalidPermissionsMsg'), ...
vision.getMessage('vision:caltool:PathWithInvalidPermissionsTitle'), ...
'modal'));
end
return;
end
% Error.
if throwError
uiwait(errordlg(vision.getMessage('vision:caltool:InvalidPathMsg'), ...
vision.getMessage('vision:caltool:InvalidPathTitle'), ...
'modal'));
end
end
function generateIcons(this)
% Loop over images to generate icons.
numImages = size(this.Images, 4);
for idx = 1:numImages
icon = this.createIcon(this.Images(:,:,:,idx), this.ImageLabels(idx));
this.ImageIcons{idx} = icon;
end
end
function icon = createIcon(~, im, label)
thumbnailHeight = 72;
im = imresize(im, [thumbnailHeight, NaN]);
javaImage = im2java2d(im);
icon = javax.swing.ImageIcon(javaImage);
icon.setDescription(label);
end
function makeLabel(this, varargin)
if (nargin>1)
fileName = varargin{1};
loc = varargin{2};
[~, fname, ext] = fileparts(fileName);
label = [fname, ext];
this.ImageLabels{loc} = label;
else
label = 'Not yet saved to disk';
this.ImageLabels{end+1} = label;
end
end
function updateCaptureIntervalEdit(this, obj)
% Move slider position to otsu level and update text.
val = floor(str2double(obj.Text));
if isnan(val)
% TODO: Do we need an unnecessary error message?
this.CaptureIntervalEdit.Text = num2str(this.CaptureIntervalSlider.Value);
return;
end
% Valid value - continue
if val > this.MaxInterval
val = this.MaxInterval;
elseif val < this.MinInterval
val = this.MinInterval;
end
this.CaptureIntervalEdit.Text = num2str(val);
this.CaptureIntervalSlider.Value = val;
end
function updateCaptureIntervalSlider(this, ~)
% Update text.
this.CaptureIntervalEdit.Text = num2str(this.CaptureIntervalSlider.Value);
end
function updateNumImagesCaptureEdit(this, obj)
% Min and Max are 1 and 100.
val = floor(str2double(obj.Text));
if isnan(val)
% TODO: Do we need an unnecessary error message?
this.NumImagesCaptureEdit.Text = num2str(this.NumImagesCaptureSlider.Value);
return;
end
% Valid value - Continue
if val < this.MinImages
val = this.MinImages;
elseif val > this.MaxImages
val = this.MaxImages;
end
this.NumImagesCaptureEdit.Text = num2str(val);
this.NumImagesCaptureSlider.Value = val;
end
function updateNumImagesCaptureSlider(this, ~)
% Update text.
this.NumImagesCaptureEdit.Text = num2str(this.NumImagesCaptureSlider.Value);
end
function updateSaveLocationEditCallback(this, evt)
if this.hasWritePermissions(evt.Text, true)
this.SaveLocationEdit.Text = evt.Text;
this.CurrentSaveLocation = this.SaveLocationEdit.Text;
this.CaptureButton.Enabled = true;
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:StartCaptureButtonToolTip'));
else
this.SaveLocationEdit.Text = this.CurrentSaveLocation;
end
end
function updateDeviceSection(this, devComboBox, varargin)
% If no device exists, do nothing and return.
if ismember(devComboBox.SelectedItem, {vision.getMessage('vision:caltool:SPPKGNotInstalled'), vision.getMessage('vision:caltool:NoWebcamsDetected')})
% Empty the properties panel.
this.PropertiesPanel = [];
return;
end
% Create device
try
if (~isempty(this.CameraObject) && isvalid(this.CameraObject) )
delete(this.CameraObject);
this.CameraObject = [];
this.PropertiesPanel = [];
this.closePreview();
end
if (nargin==3)
useResolution = varargin{1};
if useResolution
this.CameraObject = webcam(devComboBox.SelectedIndex, 'Resolution', this.PropertiesPanel.DevicePropObjects.Resolution.ComboControl.SelectedItem);
else
this.CameraObject = webcam(devComboBox.SelectedIndex);
end
else
this.CameraObject = webcam(devComboBox.SelectedIndex);
end
this.preview();
% Save the device.
this.SavedCamera = devComboBox.SelectedItem;
% Create properties panel.
this.createPropertiesPanel();
% Disable buttons
this.updateButtonStates(true);
catch excep
% The camera is in use by another application.
uiwait(errordlg(excep.message, ...
vision.getMessage('vision:caltool:CameraInUseTitle'), ...
'modal'));
% Disable buttons
this.updateButtonStates(false);
end
end
function updateButtonStates(this, flag)
this.PropertiesButton.Enabled = flag;
this.CaptureIntervalSlider.Enabled = flag;
this.CaptureIntervalEdit.Enabled = flag;
this.NumImagesCaptureSlider.Enabled = flag;
this.NumImagesCaptureEdit.Enabled = flag;
this.BrowseButton.Enabled = flag;
this.SaveLocationEdit.Enabled = flag;
this.CaptureButton.Enabled = flag;
end
function updateToolstripStatus(this)
this.DeviceComboBox.Enabled = ~this.CaptureFlag;
this.CaptureIntervalSlider.Enabled = ~this.CaptureFlag;
this.CaptureIntervalEdit.Enabled = ~this.CaptureFlag;
this.PropertiesButton.Enabled = ~this.CaptureFlag;
this.BrowseButton.Enabled = ~this.CaptureFlag;
this.CloseButton.Enabled = ~this.CaptureFlag;
this.NumImagesCaptureSlider.Enabled = ~this.CaptureFlag;
this.NumImagesCaptureEdit.Enabled = ~this.CaptureFlag;
this.SaveLocationEdit.Enabled = ~this.CaptureFlag;
end
function updateCaptureIcon(this)
if this.CaptureFlag
% Currently capture started, hence show STOP icon.
this.CaptureButton.Icon = toolpack.component.Icon.END_24;
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:StopCaptureButtonToolTip'));
else
% Currently stop initiated, hence show START icon.
this.CaptureButton.Icon = toolpack.component.Icon.RUN_24;
this.CaptureButton.Peer.setToolTipText(vision.getMessage('vision:caltool:StartCaptureButtonToolTip'));
end
end
function cameraPropertiesCallback(this)
this.createPropertiesPanel();
this.PropertiesPanel.popup.Floating = false;
this.PropertiesPanel.popup.show(this.PropertiesButton,'SOUTH');
this.updatePropertyStates();
end
function createPropertiesPanel(this)
tool = this.getParent;
if isempty(this.PropertiesPanel)
this.PropertiesPanel = vision.internal.calibration.tool.CameraPropertiesPanel(this.CameraObject, tool.ImagePreviewDisplay);
else
this.PropertiesPanel.updateCameraObject(this.CameraObject, tool.ImagePreviewDisplay);
end
end
function [width, height] = getResolution(this)
res = this.CameraObject.Resolution;
idx = strfind(res, 'x');
width = str2double(res(1:idx-1));
height = str2double(res(idx+1:end));
end
end
end