FitsPlug V1

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					FitsPlug V2.0
A Windows Format plug-in for 32-bit and 64-bit Adobe Photoshop CS4 and higher. Contents Page 1 1 2. 2. 2. 2. 2. 3. 3. 3. 3. 4. 4. 4. Section 1. Installing FITSPLUG. 2. Tips. 3. Supported FITS images. 4. Loading FITS 5. Saving FITS. 6. About FITS headers. 7. Fits Conformance. 8. Note on Starlight Xpress one-shot colour Fits images. 9. Support. 10. Single user Licensing and Ownership. 11. Site Licensing and Ownership 12. Pricing 13. Disclaimer 14. Contact Information

1. Installing FITSPLUG. - Ensure Photoshop is not running. Unzip the FITSPLUG2.ZIP into a temporary folder. There will be three resulting folders and plugins, two 32-bit and one 64-bit. \CS4\64\fitsplug2.8bi \CS4\32\fitsplug2.8bi \Other\32\fitsplug.8bi You must copy the appropriate FITSPLUG2.8BI file into the plugins folder of the appropriate (32 or 64-bit) Photoshop plugins folder. For 64-bit Photoshop CS4 or greater (Fitsplug V2) Copy \CS4\64\fitsplug2.8bi into

For 32-bit Photoshop CS4 or greater (Fitsplug V2) Copy \CS4\32\fitsplug2.8bi into

For any other version of Photoshop (Fitsplug V1) Copy \Other\32\fitsplug.8bi into

When you start Photoshop, the plug-in will be loaded automatically, and the FIT, FTS and FITS extensions will appear in the supported file types list when you select File/ 'Open', 'Save' or ‘Save As' menu options. Note for using Multiple versions of Fits Plug-ins Fitsplug V2 will coexist with Fitsplug V1and FITS Liberator under Photoshop CS4 32-bit. Using the ‘Open As’ and ‘Save As’ menus will allow selection of the desired plug-in for either operation. 2. Tips.


If there is any sign of instability in Photoshop, remove the plug-in from the installed directory and restart Photoshop. If this does happen please email me with the a description of the problem and I will try to solve it as rapidly as possible. 3. Supported FITS images. Reading: Data Sizes: 8-bit, 16-bit signed and unsigned integers, 32-bit signed integers, unsigned integers and floating point Colour Fits: 3-plane RGB format. Compression: No. Writing: Data Sizes : 8-bit, 16-bit unsigned integers, 32-bit floating point Colour Fits: RGB, 3-plane format with 8, 16 or 32-bit data. Compression: No. 4. Reading FITS. Most astronomical image processing applications keep the image data separate to the displayed image. This allows the displayed image to be modified for the screen without affecting the data. Photoshop does not have this ability and displays the image as per the image data. Modifying the images appearance on-screen means modifying the actual image data. For this reason the plug-in does not scale the data on load, but rather reads in and displays the image as-is. Photoshop CS4 supports 32-bit images in only a limited fashion. Although Fitsplug V1 converts 32-bit images to 16-bit on load, Fitsplug V2 loads 32-it images as HDR (high data range) 32-bit floating point images. Once loaded, the image data depth can be changed to any other using the standard Photoshop procedures for changing bit depth. 5. Saving FITS. All images are saved using the bit depth of the image within Photoshop. 16-bit images are represented as unsigned integer data and 32-bit images are represented as floatingpoint data within Photoshop. Regardless of the input data type, Fitsplug will save images in the currently loaded data type. Therefore simply loading and then saving a 32-bit unsigned integer image will result in a 32-bit floating point Fits file. If a non-FITS (Jpg, Gif, Tiff, etc) colour image is saved as FITS the result will be a colour FITS file with 3 planes in the order RGB, as per Maxim DL. 6. About FITS headers.


Fits headers are stored within Photoshop as an image resource, retrieved on save and updated. A FITSPLUG identity line will be added if there is room in the header. A new header block will not be created to add the FitsPlug identity line, there has to be room in an existing block. If the file being saved as FITS was not a FITS file originally (i.e. TIFF, JPG, etc) then a new FITS header is created with only image geometry information in it. 7. Fits Conformance. Some applications do not create properly conforming Fits Files in that the image data is not padded to a multiple of 2880 bytes. The Fits plug-in conforms to the Fits specification when it comes to reading and writing FITS files, though the plug-in shows some leniency when reading FITS files in that the image data need not be a multiple of 2880 bytes as per the specification. In this case, the plug-in will still read the file as long as all of the header and image data is present in order to fully represent the image. Resaving these files from Photoshop will repair them by padding them to a multiple of 2880 bytes. 8. Note on Bayer Matrix one-shot colour Fits images. I received several requests regarding one-shot colour FITS support. Bayer matrix colour images require special decoding to interpret the colour information. These images do not conform to the Fits standard because information about the organisation of the colour data does not exist in the header. For this reason they cannot be told apart from a standard monochrome Fits image. When interpreted in conformance with the Fits specification, these images appear as standard monochrome FITS images and so will load into Photoshop as a greyscale image only with the colour information lost. 9. Support. Support will be provided for issues relating to the Fits plug-in as provided. Requests for new features though not a support issue, are welcomed and features may be added to future versions of the plug-in. Registered owners will receive free updates of minor version releases and a discount on major version releases. The final beta V0.12 is no longer supported. Please send support requests to

10. Single user Licensing and Ownership. By purchasing the plug-in, a single user may install and use it as often as needed as long as the computers that the plug-in is installed on, all belong to the purchaser and they are not installed for use by others.

11. Site Licensing and Ownership


All purchases of the plug-in are considered Single-user licenses unless specifically agreed otherwise prior to purchase. If the plug-in is to be used on a publically accessible computer, or on more than one computer for use by more than one person, a site license must be agreed upon with Astroshed prior to purchase. At present, only Fits plug-ins received directly from Astroshed are considered to be legally registered versions.


12. Pricing A note on pricing: Fitsplug V1 remained at the constant price of USD$30 for the entire 7 year life of the product and is still a very stable FITS plugin for 32-bit versions of Photoshop up to and including CS4. For something so long lasting, $30 is a small price to pay. It is anticipated that Fitsplug V2 will have an equally long life if not even longer. As it is virtually Fitsplug V1, redeveloped using the latest Adobe CS4 developer tools, you can be sure it is as current as can be and will not be made redundant any time soon. As with Fitsplug V1, the Fitsplug V2 purchase price includes free upgrades for the life of the major version. i.e. as long as Fitsplug remains at version 2, all upgrades will be provided free. New Fitsplug Users: Single-user license: Site Licenses 2-5 users or installations: 6-10 users or installations: 11-20 users or installations: 20+ users or installations:


USD$45 each USD$40 each USD$35 each USD$30 each

For example, an order for 11 licenses would cost 11 @ US$35 each = $385. Site licences may be renegotiated if deemed necessary after initial purchase of a single-user license. Fitsplug V1 Upgrades For registered Fitsplug V1.x users, a special discount is available for upgrade to Fitsplug V2. Note that only single-user licences are eligible for this discount. Single User Upgrade from V1.x 13. Disclaimer Although all care has been taken to ensure that the plug-in will behave itself, Astroshed and I accept no liability for any adverse consequences that may arise from the use or attempted use of the plug-in. 14. Contact Information Please feel free to contact me at any time with regards to any aspect of your purchase, the plug-in or it’s use. Eddie Trimarchi. 12th-May-2009. USD$30 each


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