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- Short: Visible Human Project loaders for ImageFX
- Author: dhomas@youngmonkey.ca
- Uploader: dhomas@youngmonkey.ca
- Type: gfx/ifx
-
- NOTES
- -----
- VisibleHuman_IMGF
- =================
- The VisibleHuman_IMGF loader will load the Visual Human Project MRI and
- CT (radiological/) IMGF format image files. These images are converted
- from 16-bit greyscale to 8-bit greyscale.
-
- By default the loader will perform a pre-process scan of the image data
- to determine the optimal scaling value for conversion to 8-bit
- greyscale:
-
- scale = (max value >> 8) + 1
- value = value \ scale
-
- On an individual image basis, this gives the best result. However, if
- you intend to combine images in some manner or you want to speed up the
- loading process, you may want to force a particular scaling value as
- follows:
-
- The loader will look for the environment variable
- "ENV:ImageFX/VisibleHuman_IMGF" to determine it's scaling value. If the
- variable is set to 0 or is not found, the pre-process scan will be
- performed as default. If the value is 1 or greater, that value will be
- used for scaling:
-
- scale = env value
- value = value \ scale
-
- If the env value is set to 1, the image data will be loaded as is (a
- number divided by 1 is itself). Generally, for MRI images scale = 4 and
- CT images scale = 12.
-
-
- VisibleHuman_RAW
- ================
- The VisibleHuman_RAW loader will load the 24-bit (Fullcolor/) RAW image
- files. The images are loaded as 24-bit (RGB) without any level scaling
- required.
-
- Because there is no header information contained within these RAW image
- files, the LM_CheckFile() function will auto-recognize the format by
- checking that the file size is 7471104 bytes.
-
- Currently, no check is made by the LM_Load() function to insure that a
- file is the proper format... so be careful when using SHIFT-LOAD (Load
- image as).
-
-
-
-
- WWW
- ---
- The latest version can be downloaded from the ImageFX support area on
- the young monkey studios website at:
-
- http://www.youngmonkey.ca/hands/files/ImageFX/index.html
-
- or The Visible Human Project support area at:
-
- http://www.youngmonkey.ca/hands/files/VisibleHuman/index.html
-
-
- The Visible Human Project: The Data and How to Get It:
-
- http://www.nlm.nih.gov/research/visible/getting_data.html
-
-
-
-
- LEGALITIES
- ----------
- This loader is copyright 1998 by dhomas trenn and young monkey. It may
- be freely distributed.
-
-
- TRADEMARKS
- ----------
- Visible Human Project is a trademark of National Library of Medicine.
- ImageFX is a trademark (?) of Nova Design, Inc.
-
-
- THANKS
- ------
- Thanks to Keith Barkley for his assistance.
-