for Adobe Photoshop - Avenza Systems Inc.

112 Pages·2006·5.72 MB·English

for Adobe Photoshop
Reproject Mosaic Crop Reference
TM
Avenza™ Geographic Imager User Guide
Copyrght © 2006 Avenza Systems Inc. All rghts reserved.
Geographc Imager for Adobe® Photoshop® User Gude for Wndows and Macntosh.
Geographc Imager s a trademark of Avenza Systems Inc. Adobe, Adobe Photoshop and Adobe Illustrator are
trademarks of Adobe Systems Inc. or ts subsdares and may be regstered n certan jursdctons. Blue Marble
Geographcs, GeoTransform and The Geographc Transformer are trademarks of Blue Marble Geographcs. All
other software product names and brands ncludng trademarks or regstered trademarks are the property of ther
respectve owners.
Ths manual and the software descrbed n t are furnshed under lcense and may be used or coped only n
accordance wth the terms of such lcense. The content of ths manual s furnshed for nformatonal use only, s
subject to change wthout notce and should not be construed as a commtment by Avenza Systems Inc. or ts
related companes or successors. Avenza Systems Inc. assumes no responsblty or lablty for any errors, omssons
or naccuraces that may appear n ths book.
We would lke to thank Blue Marble Geographcs for contrbutng techncal documentaton whch has been used n
the appendces of ths manual. Please see the Acknowledgements (page B/1) for contact nformaton.
Except as permtted by such lcense, no part of ths publcaton may be reproduced, stored n a retreval system, or
transmtted, n any form or by any means, electronc, mechancal, recordng, or otherwse wthout pror wrtten
approval of Avenza Systems Inc.
Avenza Systems Inc.
124 Merton Street, Sute 400
Toronto, Ontaro, M4S 2Z2
Canada
Tel: [phone] Toll Free (North America): 1 800 884 2555
Fax: [phone]
Emal: [email protected]
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Cover and Chapter Intro maps courtesy of:
Natural Earth © Tom Patterson and US Natonal Park Servce, Harpers Ferry Center, USA • East Hudson Trals © New York-New Jersey Tral Conference,
Mahwah, NJ, USA • Hawkesbury Rver © Australan Geographc, Terreay Hlls, NSW, Australa • Fosterng Transt Orented Development n Boston ©
Boston Redevelopment Authorty, Boston, MA, USA • Offical Map of Lousana 2000 © Lousana Department of Transportaton and Development,
Baton Rouge, LA, USA • Wandkaart Apeldoorn © Cty of Apeldoorn, Apeldoorn, The Netherlands • Grand Canyon © Sky Terran, Boulder, CO, USA
• The World, Physcal © XYZ Dgtal Map Co. Ltd, Glasgow & Ednburgh, Scotland • The Long Path - South-Central Catsklls © New York - New Jersey
Tral Conference, Mahwah, NJ, USA • Brmngham CtyMap Paperback Atlas © XYZ Dgtal Map Co. Ltd, Glasgow & Ednburgh, Scotland • Rga
Address Atlas © Jana Seta Map Publshers Ltd., Rga, Latva • Southeast Zeeland Bke Map © ANWB, The Netherlands • Chugach State Park © Imus
Geographcs, Eugene, OR, USA • Greater Phladelpha Regonal Bcycle Map © Steve Spndler Cartography, Jenkntown, PA, USA • Tasman Natonal
Park © Department of Prmary Industres, Water & Envronment, Hobart, Tasmana, Australa • Recreaton and Hstorcal Stes on Publc Lands of
Arzona © Arzona Office of Toursm, Phoenx, AZ, USA
Geographc Imager User Gude for Adobe Photoshop
Verson1.1
© Avenza Systems Inc., February 2006 Prnted n Canada

for
Adobe Photoshop
User Guide

Welcome
Welcome to Geographc Imager, the newest addton to the Avenza sute of mappng plugns for the desktop
graphcs envronment.
Combned wth Adobe Photoshop, Geographc Imager revolutonzes the way spatal magery s created, edted
and mantaned by allowng spatal mage files to be created, edted and managed n the famlar and wdely-
used Adobe Photoshop envronment. Geographc Imager allows the most common spatal magng tasks to be
performed where they should be done, n a powerful raster edtng envronment, and adds the dozens of powerful
Adobe Photoshop tools and operatons to those that one can perform on such magery.
Ths verson of Geographc Imager s the first n a long lne of geospatal tools for Adobe Photoshop that wll
contnually mprove on each prevous verson by addng addtonal file support, tools and mprovements to exstng
tools. Geographc Imager s also the perfect companon sute for MAPublsher and Adobe Illustrator users.
Ths manual assumes that the user s famlar wth Adobe Photoshop CS2 and has at least a basc understandng of
geographc nformaton systems (GIS) termnology and concepts. Please refer to your Adobe Photoshop CS2 user
gude for more nformaton on usng Adobe Photoshop CS2. A glossary of GIS terms s ncluded at the back of ths
manual for your reference.
By followng ths manual you wll learn how to work wth spatal magery usng the Geographc Imager functons
n Adobe Photoshop CS2. Ths manual covers the concepts necessary to open, edt, transform, mosac and
georeference geographc mages. A varety of sample magery has been provded on your Geographc Imager CD
or wth your Geographc Imager download for use wth ths gude and the tutorals (see Chapter 9). However we do
encourage you to experment wth your own data to gan addtonal experence wth Geographc Imager’s tools and
functons.
Together Geographc Imager and Adobe Photoshop wll gve you a totally ntegrated spatal mage software system
wth graphcs tools and geographc functons present n the same work envronment.
So jon first class mappng organzatons from around the world and experence modern day magng by readng
ths user gude, gong through the tutorals and expermentng wth Geographc Imager.
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Contents
WELCOME....................................................................................................v
CONTENTS ...................................................................................................v
WHAT IS GEOGRAPHIC IMAGER ..............................................................................v
Chapter 1: GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYSTEM REQUIREMENTS.................................................................................12
INSTALLATION INSTRUCTIONS ...........................................................................13
ACTIVATION AND LICENSING.............................................................................14
THE GEOGRAPHIC IMAGER TOOLS .......................................................................16
COMPATIBILITY WITH ADOBE PHOTOSHOP (WARNINGS AND UNSUPPORTED FUNCTIONS).................18
COMPATIBILITY WITH MAPUBLISHER AND OTHER APPLICATIONS..........................................21
COLOUR MODES ........................................................................................22
Chapter 2: GEO-IMAGE FORMATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
SUPPORTED FORMATS...................................................................................24
DATA CONSIDERATIONS .................................................................................25
Chapter 3: OPENING GEOGRAPHIC IMAGERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
OPENING AN IMAGE.....................................................................................28
REFERENCING AN IMAGE ................................................................................28
SPECIFYING A COORDINATE SYSTEM.....................................................................30
Chapter 4: TRANSFORMATIONS AND COORDINATE SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
APPLYING A TRANSFORMATION .........................................................................34
LOADING A GEODETIC DATA SOURCE ....................................................................37
EDITING A GEODETIC DATA SOURCE .....................................................................38
THE COORDINATE SYSTEM EDITOR.......................................................................38
THE ELLIPSOID EDITOR ..................................................................................41
THE DATUM SHIFT EDITOR...............................................................................42
THE ANGULAR UNIT AND LINEAR UNIT EDITORS..........................................................44
IMPORTING ADDITIONAL COORDINATE SYSTEMS DEFINITIONS ...........................................46
Chapter 5: MOSAICKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
MOSAICKING AN IMAGE.................................................................................48
Chapter 6: GCP TRANSFORMATIONS AND REFERENCING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
OPENING A SOURCE IMAGE..............................................................................53
ADDING A REFERENCE POINT............................................................................53
DELETING A REFERENCE POINT ..........................................................................54
IMPORTING PREVIOUSLY DEFINED REFERENCE POINTS ...................................................54
ASSESSING RESIDUAL ERRORS ...........................................................................55
RUBBERSHEETING.......................................................................................55
Chapter 7: SAVE AND EXPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
SAVING IMAGE FILES WITH GEOREFERENCING............................................................58
EXPORTING COORDINATE SYSTEM DATA .................................................................59
EXPORTING A REFERENCE FILE...........................................................................59
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Chapter 8: PREFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
TRANSFORM RESAMPLING METHODS....................................................................62
DEFAULT REFERENCE FORMATS..........................................................................63
GEOREFERENCE DIALOG TABLE PRECISION ...............................................................63
Chapter 9: TUTORIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
OPENING AN IMAGE.....................................................................................66
SPECIFYING A REFERENCE FILe...........................................................................66
SPECIFYING A COORDINATE SYSTEM.....................................................................66
TRANSFORMING ........................................................................................67
MOSAICKING............................................................................................68
PROJECTING A MOSAICKED IMAGE ......................................................................68
GEOREFERENCING.......................................................................................69
EXPORTING A REFERENCE FILE...........................................................................70
SAVING A CROPPED IMAGE ..............................................................................70
APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
APPENDIX A - TECHNICAL REFERENCE GUIDE............................................................A/1
APPENDIX B - ACKNOWLEDGEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B/1
APPENDIX C - GLOSSARY ...............................................................................C/1
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What Is Geographic Imager
Geographc Imager s a powerful sute of tools and functons for Adobe Photoshop that enables spatal magery
to be opened, edted, transformed and re-saved whle retanng all the spatal propertes of the mage. Whle
most spatal magery s of a format that Adobe Photoshop can natvely open and edt, wthout the presence of
Geographc Imager all geospatal propertes of such mages wll be lost upon resavng or exportng the mage.
In addton to ensurng a safe and trouble-free edtng envronment for your geospatal photographs and scans,
Geographc Imager offers specalzed tools for performng certan spatal operatons on the mage beyond the
standard mage edtng functons natve to Adobe Photoshop.
The followng s a bref outlne of the functons and tools ncluded n ths verson of Geographc Imager.
GEOTRANSFORM TECHNOLOGY
Avenza has partnered wth Blue Marble Geographcs (http://www.bluemarblegeo.com) to ntroduce Blue Marble’s
core GeoTransform technology nto Adobe Photoshop va Geographc Imager. GeoTransform, whch forms the
bass for Blue Marble’s Geographc Transformer product, embeds sophstcated mage reprojecton and tlng nto
Geographc Imager and s the underlyng technology behnd Blue Marble’s popular Geographc Transformer stand-
alone magng product. GeoTransform creates an mage map from a source mage, georeferencng nformaton, and
destnaton mage parameters, and allows for the performance of varous spatal transformatons on geographc
magery.
GEOREFERENCING IN ADOBE PHOTOSHOP
Geographc Imager adds a world coordnate grd to the page and pxel grd systems natve to Adobe Photoshop. It
allows for the creaton and mantenance of ths mage-to-world relatonshp throughout most Adobe Photoshop
operatons so that once the mage s resaved or exported the georeferencng s not lost. Geographc Imager
provdes smart support for most mage level operatons, such as crop and resze, and tracks the changes to the
mage geometry, updatng the reference nformaton accordngly. Some Adobe Photoshop functons are not
supported and as such the performance of such operatons may dsturb the georeferencng of the mage. See page
18 for more nformaton.
OPENING/SAVING SPATIAL IMAGERY
Upon the openng of a geographc mage, Geographc Imager automatcally recognzes f the mage s a geoTIFF
and f not, attempts to locate a matchng reference file for the mage, and populates the Geographc Imager
nformaton palette accordngly.
Upon savng a geographc mage usng the natve Adobe Photoshop Fle > Save or Fle > Save As commands,
Geographc Imager automatcally creates a correspondng reference file or the geoTIFF header nformaton.
All Adobe Photoshop mage export formats are supported by Geographc Imager ncludng the natve Adobe
Photshop .psd format and the Adobe Acrobat .pdf format. All formats other than geoTIFF wll be referenced usng
an external reference file such as a world file.
PROJECTING
Geographc Imager ncludes extensve support for 1000’s of geographc and projected coordnate systems that
allow spatal magery to be projected and transformed n Adobe Photoshop. Support for customzed projectons as
well as the ablty to save custom defintons for later use s also ncluded.
v What Is Geographic Imager
MOSAICKING
Geographc Imager allows Adobe Photoshop to automatcally combne multple geographc mages to create
mage mosacs whle retanng the georeferencng propertes n the new larger mage. You can create seamless
resultant mages from ndvdual mage files provded that certan condtons are met..
GROUND CONTROL POINTS (GCP)
Geographc Imager allows the referencng of non referenced mages usng known ground control ponts and the
transformaton of such mages to fit the GCP’s wth mnmal errors. Multple transformaton types are supported
ncludng affine and polynomal. Ground control pont data can also be saved as a reference file for later use.
FLOATING LICENSING
Geographc Imager offers a floatng lcense opton whch enables lcenses to be shared across a network by multple
users. In such a scenaro the Geographc Imager clent software can be nstalled on an unlmted number of
computers whle concurrent use s lmted by the number of floatng lcenses purchased. Ths tr-platform soluton
offers support for Wndows, Mac and Lnux servers alke and ncludes the ablty to check-out a lcense for remote
use on a laptop computer as well as Internet-enable access for remote users. Floatng lcenses are a wonderful cost-
effectve way of sharng software amongst multple users n a networked envronment.
SECURITY
Geographc Imager ncorporates a lcensng system that s desgned to deter unauthorzed copyng and nstallaton
of the software. Actvaton protects the ntellectual property and nnovaton at the heart of the software ndustry.
And n partcular that of Geographc Imager. Avenza s commtted to elmnatng unauthorzed use of ts software
and s dong so n a manner desgned to have a mnmal effect on lcensed users. Actvaton mantans customer
prvacy and does not change the terms of the exstng Product Lcense Agreement. Please refer to page 14 for more
nformaton on lcensng procedures n Geographc Imager.
What Is Geographic Imager x
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