www.gusucode.com > 声音的处理有：LPC，FFT，共振峰，频谱源码程序 > siganlandsystemusingMatlab/SSUM/library/save_imagedata.m

    %
function save_imagedata(imagedata, varargin)

	savedir = pwd;
	if nargin > 1,
		filenamepath = varargin{1};
	else
		try 
			cd([ssumroot, 'data/images']);
		catch
			cd([ssumroot]);
		end
		[filename,path,filterindex] = uiputfile({...
			'*.tiff.','TIFF'; ...
			'*.mat','MATLAB database'}, ...
			'Save image as');
		if isequal(filename,0) | isequal(path,0)
			return;
		end
		filenamepath = [path filename];
	end

	[t,extension] = strtok(filenamepath,'.');
	switch(lower(extension))
		case {'.tif', '.tiff'}
			fprintf('Saving %s...\n',filenamepath);
			imwrite(uint8(imagedata.data),filenamepath,'TIFF');
		case '.mat'
			fprintf('Saving MATLAB database...\n');
			imagedata = save(filenamepath,'imagedata');
		otherwise
			warndlg('Image format unsupported!','Bad image file format!');
	end
	
	cd(savedir);