The simplest image handler is the Raw Input Tool which provides direct acces to the data stack within Tina. It allows the user to specify all of the parameters necessary to locate and read a raw binary (or ascii) data block within a file. The parameters of this tool should be quite self explanatory. Typical use involves a trial and error process to select the best parameters while viewing the resulting data in the Imcalc Tool's Tv. This should be the method of last resort for loading proprietary data sets. The other data input tools support formats which contain useful supplemental header information. The Sequence Tool in particular supports common medical volume data sets. Once an data set has been loaded it is possible to write out to any of the supported formats, thus achieving image conversion. This process can be batched using macro replays (see below) if many files are involved.
The Mono Tool handles the following file types;
Option Extension Description AIFF .aiff Image (new Aivru image file format) PGM .pgm portable greylevel map RAD .rad RADIAL image format (Manchester Univ.) EDGE .edges Edge data (binary) POLY .poly2D Geometry CAM .cam Camera geometry WISP .wisp Edge String data RAS .ras SUN rasterfile DICOM GIF image file formatAn image may have associated files with some or all of these extensions. PGM file reading is supported only for compatability with standard data formats. Generally, image processing requiring co-ordinate mapping or pixel casting will produce images which cannot be supported within an integer format. The AIFF format exists specifically to overcome these kind of deficiencies and its use is recommended for processed image storage. In order to support sequence processing the filename can be specified including numeric wildcards "#". These are substitued for the numeric Frame Number which can be manipulated via the forward and backward iterators and . This facility is of primary value when constructing sequence replays within the Sequence Tool.
A scan facility is provided to provide a listing of files which are compatable with the current specification of the file name. To list a directory contents the directory path should be terminated with a "/". If the file path is unique it will be completed for you in the interface thus avoiding typing errors in locating data.
Stereo tool handles the following file types.
Option Extension Description AIFF .l.aiff & .r.aiff Image (new Aivru image file format) ROI .roi stored Tv regions. EDGE .l.edges & .r.edges Edge data (binary) POLY .l.poly & .r.poly 2D geometry LH_G .poly 3D geometry (old right hand coords) RH_G .poly 3D geometry (new right hand coords) CAM .l.cam & .r.cam Camera geometryAn image may have associated files with some or all of these extensions (.l means left images and .r means right image).
The default image pathname is given by the environment variable TINA_IMAGE_DEFAULT, if set otherwise it takes a #defined value.
Again (as in the Mono Tool) the filename can be specified including numeric wildcards "#". These are substitued for the numeric Frame Number which can be manipulated via the forward and backward iterators and . This facility is of primary value when constructing sequence replays within the Sequence Tool.
A camera file is input whenever a .aiff (or .iff) or raw image is input. When inputting a camera file, a heirarchy of default filenames is used. eg. for the image HOME/images/house/house.aiff, Tina looks for a camera file in the order:
$HOME/images/house/house.cam (<basename>.cam) $HOME/images/house/default.cam (deafult.cam in same directory) $HOME/images/default.cam (TINA\_CAMERA\_DEFAULT variable) $HOME/images/default.cam (pathname #define'd)
On output a camera file is only written when CAM is selected. (ie. NOT when an image is output) and it is written only to the named file (basename.cam) is possible.