Difference between revisions of "PTStitcher Readme"
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[[Category:Tutorial:Nice to know]]
Revision as of 18:07, 21 March 2007
This is the text of the original readme for PTStitcher by Helmut Dersch. It is provided for historical purpose and not intended as an up to date document. For a recent documentation of PTStitcher scripting see Jim Watter's page
The text of the links mentioned in the document was left as in the original. However, when you click them you get directed to a page on a mirror. Links to other pages are clickable only, if the linkedpage still exists.
Readme PTStitcher 1.9.2 PTStitcher combines images to panoramic views. You simply drop all input images onto the application icon of PTStitcher and a panoramic file to be viewed with all major VR-viewers is generated in one step. An updated version of the Photoshop plug-in 'Panorama Tools' is included. Please use only the same version numbers of these programs together.
Changes to 1.9.1: ================= o JPEG output supported for IBM-Hotmedia support. o Folders with images can be processed like single images. This solves a problem with Windows command line limitations. o Mac-version reads images through Quicktime importer. Thus almost any format is supported, and the 'PICT'- limitation on image size no longer applies. o Mac version has some rudimentary user interface. Images can be loaded via menus, and there is even a program icon. o PTAverage, the density enhancing software, is now included in this distribution. Also included is a first Windows version of this program. o Bug fixes: Mode line in scripts is read correctly, IVR-files for LivePicture Cylinders are corrected, and some more minor fixes. o Scripting syntax for macs has been changed to that of Windows machines, see Readme. o The Photoshop plug-in 'Panorama Tools' has been updated, too, see the separate Readme about changes. Changes to 1.9.0: ================= o First Windows version. o Panorama conversion capability added: Almost any output format can be generated using any input format. o More formats available: LivePicture Cylinder. o VRML-output now includes Zoom-tool. o Viewer scripts can be customized via templates. o Script file can be dropped together with image files on PTStitcher. o Some bug fixes Changes to 1.0b1: ================= o More output formats available: VRML-cubes and LivePicture-Java (spherical/cylindrical). o Fully Apple-scriptable: Build your Web-Panocam. o PTOptimizer finds optimum image position automatically, see separate documentation. o More options for panorama creation: see examples. o Several bug fixes. Changes to 1.0b0: =============== o Fixed error in PICT-reader, which only worked for 72dpi images. (Copied faithfully from Apple's sample code site...)
Output options: =============== o QTVR movie ready to be viewed with Quicktime plug-in. (Windows version requires free VRMakePano utility). o Smoothmove full spherical panorama ready to be viewed with Infinite Images (iMove) plug-in. o RealVR full spherical and cylindrical panorama ready to be viewed with LivePicture's ZoomIt viewer. o LivePicture Java format: Cylindrical and Spherical ready to be viewed with LivePicture Applet o VRML-Background node (Cubes) ready to be viewed with VRML-browsers. Viewer Script with Zoom tool generated. o JPEG-images for IBM Hotmedia format, ready to be imported in free IBM authoring software. o Panoramic images for viewing and printing o Multilayer Photoshop file containing one image per layer for editing.
Input options: ============== o Rectilinear lenses with any focal length o Fisheye lenses with any focal length o Panoramic cameras o Any orientation possible (multirow etc) o PSphere images, allows conversion of almost any format to any format. o Can read almost any format on Macs/ uncompressed BMP and JPEG images on Windows.
Installation: ============= Macintosh: ---------- Drop the file 'pano12.lib' onto your 'System Folder'. Your system should then move it to the 'Extensions'-folder. It replaces the pano-library which comes with my Photoshop plug-in 'Panorama Tools'. This library only works with the current version 1.9.2 plug-in which is included in this package.
Windows: -------- Put the library file 'pano12.dll' in your \Windows\System directory. This library also works with the current 1.9.2 version of the Panorama Tools plug-in. If you do not use that plug-in you can also leave the library together with PTStitcher.
General: -------- The folder 'Templates' has to be in PTStitcher's directory. It contains HTML and VRML templates, which are used to generate the output files. You can edit them to suit your needs. They can be opened with any plain text editor, and hold a C-language format string. The placeholders starting with a '%' sign are used by PTStitcher to insert proper output values. You can move them, but not delete them or change order. You need one file with name 'Script' (Windows: 'Script.txt', the extension is invisible!) in PTStitcher's directory. This scriptfile holds the information about how to assemble the panorama. See the tutorials section below for details.
Getting Started: ================ With the original Script of the distribution we can start making a spherical pano using two fisheye images. The Script should reside in PTStitcher's directory. Now open the folder 'fisheye', then 'Images'. You can open these image in any graphics program. They resemble scaled down fisheye images. Grab both images and drop them together(!) on PTStitcher's icon. Alternatively, you can drop the folder containing the images. PTStitcher starts up and asks for a name and location for the panoramic output file. Choose whatever you like (eg 'pano'), and click 'ok'. After several transformations, the program quits, and generates two files: pano.JPG, which is the panoramic image, and pano.IVR, which is required by the LivePicture ZoomIt viewer. To view the panorama, you have to download and install this viewer from http://www.livepicture.com into your browser. Then open 'pano.IVR' in the browser (if you use Netscape, you can simply doubleclick 'pano.IVR', only mac). Please note that the images for this tutorial are heavily compressed for bandwidth reasons (JPEG quality 25%) and display many artifacts.
Multirow Stitching: =================== A second example using 10 images resembling a 14mm wide angle rectilinear lens is available in the folder 'rectilinear'. These images correspond to two rows made at pitch angles of +/-43 degrees. Scripts are provided to create the same formats as above. Be sure to drop _all_ 10 images at once.
Panorama Conversions: ===================== See the directory 'conversions' for examples of Panorama format conversions. First, generate a Master-panorama using the script 'InputPanorama' and the two fisheye images. This is in 'PSphere'-format. Then generate different formats using the scripts 'to_VRML' and 'to_QTVR'. By editing these scripts any input format and output format can be combined.
More examples: ============= The examples from my site http://www.fh-furtwangen.de/~dersch for 'Panorama Tools' also work in PTStitcher. Try the images from the tutorial 'HowToStitch' as an example for spherical panoramas made with full frame fisheye lenses. Use the example from http://www.fh-furtwangen.de/~dersch/coolpix/coolpix.html for the Nikon Coolpix with fisheye adapter. In this latter case you have to add the commands 'mx900 my900' to the script, see the example 'fisheye' in this distribution.
How to go on
How to go on: ============= To use PTStitcher with your setup, you have to generate a script for your needs. Even if you use something similar to the examples you probably need some finetuning. This can be done in various ways: o 'Panorama Tools' (included) has a robust and fast position optimizer based on feature points. Setting these points, however, is somewhat tedious, and not feasible if you have many images to stitch.It can determine image positions, correction parameters, and automatically generate scripts. o 'PTOptimizer' in this package uses 'PTStitcher' to generate panoramas with different parameters until they fit. It is very slow but does not require setting feature points. See the separate documentation. o Manual alignment. Generate a Photoshop file (PSD_mask or PSD_nomask) in PSphere-format. Then edit this image, in Photoshop or any other suitable Graphic program (eg move the layers and set seam positions), and save the result in lossless PICT(Mac)/ BMP(Win) format. Then use one of the Conversion scripts to generate the panoramic file(s). The images dropped onto PTStitcher are processed in alphabetical/numerical order. Be sure that is the same order they appear in the script.
Scripting PTStitcher: ===================== Macintosh: ----------- PTStitcher is fully scriptable. PTOptimizer uses this feature to interact with it, and lets it generate various trial images. PTStitcher responds to 'DoScript' Apple Events embedded in a launch. The data sent should be text consisting of a list of full paths in Apple-notation, ie with ':' as delimiter. The syntax has been changed for version 1.9.2: -o outputpano scriptfile image1 image2 .... Filenames containing spaces should be quoted. Example: -o "Macintosh HD:panos:result" "Macintosh HD:myscript" "Macintosh HD:image1" "Macintosh HD:image2"
Windows: -------- PTStitcher can be controlled via commandline arguments.PTOptimizer uses this feature to interact with it, and lets it generate various trial images. The syntax is as follows PTStitcher -o outputpano script.txt image1 image2 .... The outputpano describes the location for the result panorama, ie what PTStitcher asks for when run interactively. This file should not exist yet. The scriptfile is identified via extension 'txt' and need not appear as second entry, nor has to be named 'script'. All input images follow, and are processed in the order they appear in the command line. Enjoy Helmut Dersch email@example.com ------------------------------------- Spherical Panoramas, Macro Panoramas, Free Panorama Software: <http://www.fh-furtwangen.de/~dersch>