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Topic: GeoTIFF

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	GeoTIFF
		GeoTIFF represents an effort by over 160 different remote sensing, GIS, cartographic, and surveying related companies and organizations to establish a TIFF based interchange format for georeferenced raster imagery.
		GeoTIFF Revision 1.0 Specification: This is the official release version of the GeoTIFF spec.
		Parts 1, 2, 3 and 4 of a tutorial series by Daniel Denk on manipulating geotiff files primarily with regard to photoshop.
	www.remotesensing.org /geotiff/geotiff.html (264 words)

	GeoTIFF FAQ
		The GeoTIFF tags and definitions are considered completely "orthogonal" to the baseline and extended TIFF tag definitions currently supported in TIFF V 6 by Adobe/Aldus.
		GeoTIFF merely expands this to involve public domain tags and structures that are interoperable between any GIS.
		GeoTIFF has been proposed to the Open GIS Consortium, for example, and other entities are evaluating whether GeoTIFF should be proposed to international or other standards groups.
	www.remotesensing.org /geotiff/faq.html (3666 words)

	GeoTIFF - A standard image file format for GIS applications
		GeoTIFF format uses numerical codes to describe projection types, coordinate systems, datums, ellipsoids, etc. The projection, datums and ellipsoid codes are derived from the EPSG list compiled by the Petrotechnical Open Software Corporation (POSC), and mechanisms for adding further international projections, datums and ellipsoids has been established.
		A GeoTIFF file is a TIFF 6.0 file, and inherits the file structure as described in the corresponding portion of the TIFF spec.
		In the GeoTIFF nomenclature, "georeferencing" refers to tying raster space to a model space M, while "geocoding" refers to defining how the model space M assigns coordinates to points on the earth.
	www.gisdevelopment.net /technology/ip/mi03117pf.htm (2098 words)

	Geotiff
		GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a...
		It's a numerically georeferenced cartographic data in geotiff format that is compressed.
		GeoTIFF represents an effort by over 160 different remote sensing, GIS, cartographic, and surveying related companies and organizations to establish a TIFF based interchange format for georeferenced raster imagery.
	tiffdefinition.quaystiff.com /geotiff (811 words)

	USGS - Problems with GeoTIFF on USGS DRG CD-ROM'S
		The phrase "the GeoTIFF bug" is now associated with these problems, although this is not quite an accurate description.
		By chance, the draft GeoTIFF standard was nearing completion at the same time the USGS was designing the DRG.
		Software that implements GeoTIFF is quite rare at this time, and the immediate impact of the problem should therefore be small.
	topomaps.usgs.gov /drg/err_rep.html (1887 words)

	Australian Hydrographic Service - Seafarer® GeoTIFF
		GeoTIFF is a raster image format that is an extension of the TIFF (Tagged-Image File Format) image standard.
		GeoTIFF images contain additional information that allow them to be tied to known chart projections.
		You should be able to view GeoTIFF images on any image viewing system which is capable of displaying images in GeoTIFF and/or TIFF version 6.0.
	www.hydro.gov.au /seafarer/geotiff/geotiff.htm (444 words)

	Registering a GeoTIFF Image
		GeoTIFF files are similar to regular TIFF files, except that they contain extra information (we call it metadata) that explains how to register this image to a map projection.
		I also had to reverse the Y direction of the TIFF image, since most TIFF image writers assume the upper-left corner of the image as the (0,0) point, and IDL wants it to be the lower-left corner of the image.
		Fortunately, my GeoTIFF file was a "simple" file with a single tie-point, which identified the origin of the image in a UV coordinate system.
	www.dfanning.com /map_tips/geotiffreg.html (1919 words)

	[No title]
		GeoTIFF uses numerical codes to describe projection types, coordinate systems, datums, ellipsoids, etc. The projection, datums and ellipsoid codes are derived from the EPSG list compiled by the Petrotechnical Open Software Company (POSC), and mechanisms for adding further international projections,datums and ellipsoids has been established.
		GeoTIFF stores most of its information using a "Key-Code" pairing system; the Major revision number will only be incremented when a substantial addition or modification is made to the list of information Keys, while the Minor Revision number permits incremental augmentation of the list of valid codes.
		Geotiff requires one of these to be the semi-major axis (a), and the second to be either the inverse flattening (1/f) or the semi-minor axis (b).
	www.fws.gov /filedownloads/ftp_region6_gisdata/Colorado/Data_Not_Assoc_With_NWR/DRGs/Custer_County/drgs_without_collar/drg_geotiff.txt (11147 words)

	GeoTIFF
		GeoTIFF Revision 1.0 Specification: This is the official release version of the GeoTIFF spec.
		Parts 1, 2, 3 and 4 of a tutorial series by Daniel Denk on manipulating geotiff files primarily with regard to photoshop.
		The GeoTIFF mailing list is also available by NNTP at news://news.gmane.org/gmane.comp.gis.geotiff.
	remotesensing.org /geotiff/geotiff.html (264 words)

	CoastWatch Data Formats and GIS: GeoTIFF
		GeoTIFF images are an extended form of TIFF image that contain georeferencing information that allow programs like ArcView to correctly scale and place them on a map.
		GeoTIFFs combine image and georeferencing information into a single file, unlike some other georeferenced formats that require a separate header file.
		The GeoTIFF images available from CoastWatch are 8-bit images, meaning that the number associated with each pixel is represented by a binary code of eight characters, for example, 01100101.
	coastwatch.noaa.gov /cw_form_geotif.html (274 words)

	Remote Sensing/ Geographic Information Systems Facility
		A GeoTIFF image is a TIFF image and can therefore be opened with any program that reads the TIFF file format.
		GeoTIFF is a popular format for distributing satellite imagery that is packaged using one of the following two methods.
		The GeoTiff file format is a TIFF file format that stores detailed geocoding information along with the image data.
	geospatial.amnh.org /remote_sensing/guides/viewing_data/photoshop.html (4325 words)

	National SDTS Implementors' Workshop Results (Site not responding. Last check: )
		GeoTIFF offers all the benefits of TIFF plus additional information such as: geographic metadata, hierarchic geodesy model, 64 bit precision support, transformation matrix support, public entabulation of geographic variables, public software library, and is extensible.
		GeoTIFF is an informal standard which provides interoperability of projected imagery across many software vendors - and it works.
		It would be very worthwhile to generate GeoTIFF from SDTS raster data to avoid duplication.
	mcmcweb.er.usgs.gov /sdts/result/technical/geotiffresult.html (312 words)

	GeoTIFF/GDAL OPeNDAP Server Design
		The GeoTIFF specification is an extention to the TIFF format, adding tags to describe how pixel locations can be related to some geospatial coordinate system and describing that geospatial coordinate system.
		Most GeoTIFF files in use used the first georeferencing form though it is not uncommon for "raw" GeoTIFF files to be provided in the 3rd form with only approximate tiepoints at image corners.
		The GDAL data model is fairly closely related to the GeoTIFF data model, and is more completely described in the GDAL Data Model document.
	home.gdal.org /~warmerda/gdal_opendap_design.html (2150 words)

	[No title]
		How to make a geotiff image file from a BYU.sir file 28 May 2001 Unfortunately, incompatible tiff libraries complicate matters and lead to a need to run multiple programs to generate geotiff images.
		If you want to generate a prototype geotiff from scratch, you first need to generate a geotiff.lgo file and a conventional tiff file with dimensions of the desired output geotiff image.
		More information on geotiff is available from URL http://www.geotiff.org/ More information on proj.4 is available from URL http://www.remotesensing.org/proj/ More information on tiff is available from URL http://www.libtiff.org/ ******************* Compiling sir2geotiff.c and sir2geotiff_map.c The sir2geotiff_map.c program links only with csir and proj.4 libraries.
	www.scp.byu.edu /software/geotiff/procedure.txt (717 words)

	GTiff -- GeoTIFF File Format
		As well, one bit files, and some other unusual formulations of GeoTIFF file, such as YCbCr color model files, are automatically translated into RGBA (red, green, blue, alpha) form, and treated as four eight bit bands.
		Most GeoTIFF projections should be supported, with the caveat that in order to translate uncommon Projected, and Geographic coordinate systems into OGC WKT it is necessary to have the EPSG.csv files avalable.
		Georeferencing from GeoTIFF is supported in the form of one tiepoint and pixel size, a transformation matrix, or a list of GCPs.
	www.gdal.org /frmt_gtiff.html (636 words)

	Geotiff & Photoshop, Part 1
		The Geotiff (or GeoTIFF) format, is a TIFF image that has special geospatial metadata tags in the header.
		Use a program that is designed to read Geotiff images and export geospatial coordinate tags, projection tags, or in some cases Geotiff tags, prior to importing.
		Geotiff and Photoshop, Part 2 will explore the second option, which is how to use a simple interface designed to do what was explained in this tutorial.
	www.remotesensingtools.com /2007/03/16/geotiff-photoshop-part-1 (1464 words)

	GeoTIFF Format Specification
		Geotiff has been designed so that standard map coordinate system definitions can be readily stored in a single registered TIFF tag.
		In Geotiff, provision is made to identify earth-referenced coordinate systems (model space M) and to relate M space with R space.
		Many uses of Geotiff will be limited to a two-dimensional, horizontal, description of location for which geographic coordinate systems and projected coordinate systems are adequate.
	www.softlab.ntua.gr /~mkav/parart8A.html (10603 words)

	Landmap - Geotiff File Format
		GEOTIFF is an emerging standard for storing georeferenced image data.
		Arcview 3.2 was also able to read in the geotiff files exported with PULSAR's own export facility but needed an associated Tiff World File (which can be created in Imagine 8.4).
		Problems with software not correctly accepting GeoTIFF files often stemmed from the fact that the TIFF standard only requires a TIFF reader to handle unsigned 8bit image data whereas the LANDMAP DEMs are signed 16bit.
	landmap.ac.uk /software/geotiff.html (194 words)

	USGS (U.S. Geological Survey) EROS, Sioux Falls, SD
		DOQs in native format are cast to the Universal Transverse Mercator (UTM) projection and referenced to either the North American Datum (NAD) of 1927 (NAD27) or the NAD of 1983 (NAD83).
		DOQs in GeoTIFF format are cast to the UTM projection and referenced to NAD83.
		GeoTIFF is a georeferenced Tagged Image File Format with referencing information embedded within the.tif file.
	edcwww.cr.usgs.gov /products/aerial/doq.html (499 words)

	Re: GeoTIFF max/min values
		The support for GeoTIFF Revision 1.0 is based on the final 1.0 release version of the platform-independent public-domain subroutine library for such purpose, Copyright (c) 1995 Niles D. Ritter.
		GeoTIFF has a notion of Raster Space which defines how the raster coordinate system grid lines lie with respect to the center of the pixel values in the image.
		GeoTIFF uses GeoKeys to define projection types, coordinate systems, datums, ellipsoids, etc. so that geocoding a TIFF image is possible.
	www.unidata.ucar.edu /support/help/MailArchives/netcdf/msg03160.html (1973 words)

	Working with FwTools and GeoTIFF files - FsDeveloper Wiki
		The main advantage of using GeoTIFF files is that they contain the placement information of your photo, so that means you don't have to specify all those numbers in the INF file.
		This will give you a new GeoTIFF file that can again be used by the resample tool to place your imagery in FS.
		So all you have to do before you start editing in your painting program is make sure yo have save the geo information to a GTF file, then you can always put it back later on.
	www.fsdeveloper.com /wiki/index.php?title=Working_with_FsTools_and_GeoTIFF_files (816 words)

	Geotiff Info Page
		To see the collection of prior postings to the list, visit the Geotiff Archives.
		To post a message to all the list members, send email to geotiff@lists.maptools.org.
		You will be sent email requesting confirmation, to prevent others from gratuitously subscribing you.
	lists.maptools.org /mailman/listinfo/geotiff (231 words)

	GIS: Data Formats
		Geotiff is an industry-neutral raster file format widely used and recognized by all of the major GIS software vendors.
		A DOS utility program, tif2tfw.exe, was developed by the Department of Transportation for use with their 1:24,000 scale raster quads, which are in Geotiff format.
		The program, which extracts the georegistration tag from a Geotiff file and creates an ESRI tiff world file (tfw), may be downloaded from the Software and Tools page of the New York State GIS Clearinghouse.
	www.nysgis.state.ny.us /gisdata/formats.htm (394 words)

	Detailed Raw Data Download Help
		For more detailed information about the relationship between our County Boundaries map layers and the butterfly and moth occurrence tables, please review their information files shown in the first and third columns of the Raw Data Download Table.
		GeoTIFF refers to TIFF files which have geographic information embedded within the TIFF file.
		This geographic information can then be used to position the image in its correct location in the world and on the screen of a geographic information display.
	www.nationalatlas.gov /help/downloads_det.html (2939 words)

	TeleType GPS GeoTIFF Utility Documentation
		GeoTIFF maps can be used in conjunction with any country offered by TeleType GPS.
		As a result, there may be an offset when trying to view TeleType GPS street maps with scanned paper maps.
		Also, some GeoTIFF files will be too large to view using a PDA and Pocket PC.
	www.teletype.com /pages/support/Documentation/geotiff.html (396 words)

	Detailed Raw Data Download Help
		For more detailed information about the relationship between our County Boundaries map layers and the butterfly and moth occurrence tables, please review their information files shown in the first and third columns of the Raw Data Download Table.
		GeoTIFF refers to TIFF files which have geographic information embedded within the TIFF file.
		This geographic information can then be used to position the image in its correct location in the world and on the screen of a geographic information display.
	nationalatlas.gov /help/downloads_det.html (2939 words)

	GIM International, the global magazine for Geomatics - Product News - MAP2PDF for GeoTIFF
		GeoTIFF is a standard image file format used by GIS professionals to store and publish high resolution maps and imagery.
		GeoTIFF is based on the standard TIFF file and allows for embedded georeferencing information.
		It is commonly used as an interchange format for aerial photography and scanned maps.
	www.gim-international.com /news/id2028-MAPPDF_for_GeoTIFF.html (288 words)

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