function varargout = imuihs(varargin)% IMUIHS Application M-file for imuihs.fig%    FIG = IMUIHS launch imuihs GUI.%    IMUIHS('callback_name', ...) invoke the named callback.% Last Modified by GUIDE v2.0 20-Jul-2002 14:27:19if ~isstr(varargin{1})	fig = openfig(mfilename,'reuse');	% Use system color scheme for figure:	set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));	% Generate a structure of handles to pass to callbacks, and store it.	handles = guihandles(fig);	movegui(fig, 'center')	CX = varargin{1};	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	CPREV = im2double(thumb(CX));	set(fig, 'CurrentAxes', handles.axePreview)	handles.imgPreview = imshow(CPREV, 'notruesize');	set(handles.axePreview, ...		'Visible',		'off', ...		'DrawMode',		'fast')	set(handles.imgPreview, ...		'EraseMode',	'xor', ...		'UserData',		rgb2hsv(CPREV))	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	guidata(fig, handles);	set(fig, ...		'HandleVisibility',		'callback', ...		'Visible',				'on')	waitfor(fig, 'Visible', 'off');	if strcmp(get(handles.btnApply, 'UserData'), 'Apply')		h = waitfig('Applying Hue/Saturation');		valHue = get(handles.sldHue, 'Value');		valSaturation = get(handles.sldSaturation, 'Value');		valBrightness = get(handles.sldBrightness, 'Value');		classcx = class(CX);		CX = HSFCN(rgb2hsv(CX), valHue, valSaturation, valBrightness);		switch classcx		case 'uint8'			varargout{1} = im2uint8(CX);		case 'uint16'			varargout{1} = im2uint16(CX);		otherwise			varargout{1} = CX;		end		delete(h)	else		varargout{1} = -1;	end	delete(fig)elseif ischar(varargin{1}) % INVOKE NAMED SUBFUNCTION OR CALLBACK	try		if (nargout)			[varargout{1:nargout}] = feval(varargin{:}); % FEVAL switchyard		else			feval(varargin{:}); % FEVAL switchyard		end	catch		disp(lasterr);	endend% --------------------------------------------------------------------function varargout = sldHue_Callback(h, eventdata, handles, varargin)UpdatePreview(handles)% --------------------------------------------------------------------function varargout = sldSaturation_Callback(h, eventdata, handles, varargin)UpdatePreview(handles)% --------------------------------------------------------------------function varargout = sldBrightness_Callback(h, eventdata, handles, varargin)UpdatePreview(handles)% --------------------------------------------------------------------function varargout = btnApply_Callback(h, eventdata, handles, varargin)set(handles.btnApply, 'UserData', 'Apply')set(handles.fig, 'Visible', 'off')% --------------------------------------------------------------------function varargout = btnCancel_Callback(h, eventdata, handles, varargin)set(handles.btnApply, 'UserData', 'Cancel')set(handles.fig, 'Visible', 'off')% --------------------------------------------------------------------function varargout = fig_CloseRequestFcn(h, eventdata, handles, varargin)set(handles.btnApply, 'UserData', 'Cancel')set(handles.fig, 'Visible', 'off')% --------------------------------------------------------------------function varargout = btnReset_Callback(h, eventdata, handles, varargin)set(handles.sldHue, 'Value', 0)set(handles.sldSaturation, 'Value', 0)set(handles.sldBrightness, 'Value', 0)set(handles.txtHue, 'String', '0.00')set(handles.txtSaturation, 'String', '0.00')set(handles.txtBrightness, 'String', '0.00')set(handles.chkPreview, 'Value', 1)CX = get(handles.imgPreview, 'UserData');set(handles.imgPreview, 'CData', hsv2rgb(CX))% --------------------------------------------------------------------function varargout = chkPreview_Callback(h, eventdata, handles, varargin)if get(handles.chkPreview, 'Value')	UpdatePreview(handles)else	CX = get(handles.imgPreview, 'UserData');	set(handles.imgPreview, 'CData', hsv2rgb(CX))end% ====================================================================function UpdatePreview(handles)valHue = get(handles.sldHue, 'Value');valSaturation = get(handles.sldSaturation, 'Value');valBrightness = get(handles.sldBrightness, 'Value');set(handles.txtHue, 'String', sprintf('%.2f', valHue) )set(handles.txtSaturation, 'String', sprintf('%.2f', valSaturation) )set(handles.txtBrightness, 'String', sprintf('%.2f', valBrightness) )if get(handles.chkPreview, 'Value')	CX = get(handles.imgPreview, 'UserData');	CX = HSFCN(CX, valHue, valSaturation, valBrightness);	set(handles.imgPreview, 'CData', CX)end% ====================================================================function CY = HSFCN(CX, H, S, B)LTBH = linspace(0, 1, 256) + H / 2;for i = 1 : 256	if LTBH(i) > 1		LTBH(i) = LTBH(i) - 1;	end	if LTBH(i) < 0		LTBH(i) = LTBH(i) + 1;	endendLTBS = linspace(0, 1, 256) + sign(S) * abs(S .^ 2);LTBS(LTBS > 1) = 1; LTBS(LTBS < 0) = 0;LTBB = linspace(0, 1, 256) + sign(B) * abs(B .^ 2);LTBB(LTBB > 1) = 1; LTBB(LTBB < 0) = 0;CX = cat(3, ...	grayxform( CX(:, :, 1), LTBH ), ...	grayxform( CX(:, :, 2), LTBS ), ...	grayxform( CX(:, :, 3), LTBB ) );CY = hsv2rgb(CX);