Illustrates how to write out an image to a file from the IP
After computing images, you may want to write them in a simple format to mail and show to colleagues. Each of the objects has a method for extracting the image that is shown in the GUI window. Here, we illustrate the method for the ip structure.
Check the other calls, such as: sceneGet(scene,'rgb image');
See also: ipGet
(c) Imageval, LLC 2014
Contents
ieInit
Cook up some data
scene = sceneCreate('reflectance chart'); scene = sceneSet(scene,'hfov',10); oi = oiCreate; sensor = sensorCreate; sensor = sensorSetSizeToFOV(sensor,10,oi); ip = ipCreate; oi = oiCompute(oi,scene); sensor = sensorCompute(sensor,oi); ip = ipCompute(ip,sensor);
Get data in some format from the image processor
% The sRGB is a standard display format, and this is what we show in the % window. result = ipGet(ip,'srgb'); vcNewGraphWin; image(result)
It is also possible to get the linear RGB values
These are stored in the result, and they do not correct for the display characteristics.
raw = ipGet(ip,'result');
vcNewGraphWin;
image(raw)
Once you have the data, use standard Matlab utilities to write the file
if (~exist(fullfile(isetRootPath,'local'),'dir')) mkdir(fullfile(isetRootPath,'local')); end fname = fullfile(isetRootPath,'local','deleteMe.jpg'); imwrite(result,fname,'jpeg'); delete(fname);