%ImageMagick 4.1 README9NF,
B

 
<"I swear by my life and my love of it that I will never live<for the sake of another man, nor ask another man to live formine"

=John Galt in Atlas Shrugged, by Ayn Rand


 


Contents











Author


The author isOmagick@wizards.dupont.com. ThisJsoftware is NOT shareware. However, I am interested in who might be using>it. Please consider sending me a picture postcard of the area"where you live. Send postcards to



      John Cristy      P.O. Box 40      Landenberg, PA  19350	      USA
F
I'm also interested in receiving coins from around the world formy collection.
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Availability

7
ImageMagick, version 4.2.1, is available on 0'204.183.81.131. ImageMagick clientGexectuables!are available for some platforms.AMacintosh,9NT,?VMS, and>Linux'source and binaries are also available.

0I want ImageMagick to be of high quality,Kso if you encounter a problem I will investigate. However, be sure you&are using the most recent version from0?204.183.81.131, or a mirror site, before submitting any bugreports or suggestions.


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WWW

2
The official ImageMagick WWW page is at@www.wizards.dupont.com.

To use Gdisplay as your external imageviewer, edit the Hglobal mailcap file or your personal mailcap file .mailcap4(located in your home directory) and put this entry:
      image/*; display %s






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Mailing List

A
There is a mailing list for discussions and bug reports about2ImageMagick. To subscribe send the message



      subscribe magick
toO
majordomo@wizards.dupont.com.GYou will receive a welcome message which tells you how to post messages to the listImagick@wizards.dupont.com.


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Memory Requirements

D
You should allocate sufficient swap space on your system before@running ImageMagick; otherwise, you may experience random server?or application crashes. Anything less than 80 megabytes of swap(space is likely to cause random crashes.

E

On many systems, you will find that 80 megabytes is insufficient?and you will have to allocate more swap space. You should also?have at least 32 megabytes of real memory although 64 megabytesor more is recommended.


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UNIX Compilation

Type:
%      gunzip ImageMagick-4.2.1.tar.gz#      tar xvf ImageMagick-4.2.1.tar      cd ImageMagick


;

If you do not have gunzip, it is available on Lprep.ai.mit.edu.

CThere are currently two mechanisms available to create makefiles tobuild ImageMagick:





D

To confirm your build of the ImageMagick distribution wassuccessful, type:




      display
J
If the program faults make sure that you may have inadvertingly linked@to an older version of the libMagick library. In this case type
      cd ImageMagick/magick      make install      cd ..
      make


4If the image colors are not correct use this command

      display -visual default
G
You can find other example images in the images directory.

MFor additional information, see the manual pages for these ImageMagick utilities





$

Also read the ImageMagick4Frequently Asked QuestionsGThis is a required reading. Most of the questions I get via electronic#mail are answered in this document.

3

Place display X application defaults inC/usr/lib/X11/app-defaults/Display. Use the appropriate name/for other clients (e.g. Animate, Montage, etc).;To execute displayDfrom as a menu item of any window manager (olwm, mwm, twm, etc), use



    display logo:Untitled





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Delegates

F
To further enhance the capabilities of ImageMagick, you may(want to get these programs or libraries:





D
Background Texture 

H
ImageMagick requires a background texture for the TILE-format and for the -texture option of 3montage. You can:use your own or get samples or get additional samples from0 KPT.






9
BZLIB 

0
ImageMagick requires the BZLIB4library to read or write Zip compressed MIFF images.







DRALCGM

I
ImageMagick requires ralcgm to read Computer GraphicAMetafile images (may not compile under linux). You also needGhostscript (see below).







F TransFig

N
ImageMagick requires fig2dev to read TransFig images.






4
GET

+
ImageMagick requires GET <to read images specified with a World Wide Web (WWW) uniformresource locator (URL). F Note: do not confuse this get program with SCCS get program.5If you do not have a HTTP server, you can use ,xtp, availableCin the ImageMagick distribution, for URL's whose protocol is FTP.




\FPX

8
ImageMagick requires the FlashPix SDK .to read and write the FPX image format.








4
FreeType 

L
ImageMagick requires the FreeType software, version 1.1 or above, to annotate with TrueType fonts.







9HDF

;
ImageMagick requires the NCSA HDF library.to read and write the HDF image format.







0HTML2PS

J
ImageMagick requires html2ps to read HyperText MarkupLanguage (html) documents.






K JBIG 


<
ImageMagick requires the JBIG-Kit software/to read and write the JBIG image format.






4 JPEG 


L
ImageMagick requires the Independent JPEG Group's software(to read and write the JPEG image format.

9Concerning iterative JPEG compression: see Kinoshita and>Yamamuro, Journal of Imaging Science and Technology, ImageDQuality with Reiterative JPEG Compression, Volume 39, Number 4,AJuly 1995, 306-312 who claim that (1) the iterative factor of the@repetitive JPEG operation had no influence on image quality, and8(2) the first compression determined base image quality.







;
MPEG 

:
ImageMagick requires the MPEG encoder / decoder.to read or write the MPEG image format.






@
PNG

M
ImageMagick requires the PNG library, version 1.0 or above,$to read the PNG image format.







C Postscript 



ImageMagick requires ?Ghostscript software?to read the PostScript or the Portable Document format. BIt is used to annotate an image when an X server is not available.FSee the FreeType library above for another means to annotate an image.HNote, Ghostscript must support the ppmraw device (type gs -h to verify).BIf Ghostscript is unavailable, the Display Postscript extension isEused to rasterize a Postscript document (assuming you define HasDPS).JThe DPS extension is less robust than Ghostscript in that it will only ,rasterize one page of a multi-page document.






E
RA_PPM 

N
ImageMagick requires ra_ppm from Greg Ward's RadianceIsoftware to read the Radiance image format (may not compile under linux).

A

RAWTORLE


G
ImageMagick requires rawtorle from the Utah RasterIToolkit to write the RLE image format (may not compile under linux)..




0 SANE

F
ImageMagick requires scanimage to import images froma scanner device.






6
TIFF 

I
ImageMagick requires Sam Leffler's TIFF softwareNto read and write the TIFF image format. It in turn optionally requiresthe JPEG and ZLIB libraries.



DWMFTOGIF

G
ImageMagick requires wmftogif to read Windows MetaFile images.










F
X Server 

K
ImageMagick requires an X server for display and animate to workEproperly. This free X server is available for Windows and Macintosh.






J
ZLIB 

/
ImageMagick requires the ZLIBClibrary to read or write PNG or ZLIB compressed MIFF images.



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How to Compile

F
NOTE: The following procedure describes how to build ImageMagickCextension libraries in subdirectories of the ImageMagick directory.?An alternative to these procedures is to install one or more ofAthese under your system's regular include/lib directory (e.g. theNdirectory specified by --prefix to configure or /usr/local).HThis allows the libraries to be shared by other packages. When using theAconfigure script, the two schemes may be mixed. Also, please noteHthat when the configure option --enable-shared is not disabled,?these procedures must be supplemented with whatever compilationCflags are required on your system to generate PIC code. In the caseLof gcc, this usually means that -fPIC must be added to the compiler:options (i.e. CFLAGS) when building each delegate library.

B

To display images in the HDF, JPEG, PNG, TIFF orNTTF format, get the respective archives and build ImageMagick asfollows:






HDF


      cd ImageMagick+      gunzip -c HDF4.1r2.tar.gz | tar xvf -      mv HDF4.1r2 hdf      cd hdf      configure      make -k hdf-libnofortran      cd ..




JBIG


      cd ImageMagick/      gunzip -c jbigkit-1.0.tar.gz | tar xvof -      mv jbig-kit jbig
      cd jbig
      make      cd ..




JPEG


      cd ImageMagick/      gunzip -c jpegsrc.v6b.tar.gz | tar xvof -      mv jpeg-6b jpeg
      cd jpeg      configure
      make      cd ..





PNG


      cd ImageMagick/      gunzip -c libpng-1.0.3.tar.gz | tar xvf -      mv libpng-1.0.3 png      cd png
      make      cd ..




TIFF


      cd ImageMagick3      gunzip -c tiff-v3.4beta037.tar.Z | tar xvof -      mv tiff-v3.4beta037 tiff
      cd tiff      ./configure
      make      cd ..





TTF


      cd ImageMagick0      gunzip -c freetype-1.1.tar.gz | tar xvof -      mv freetype-1.1 ttf      cd ttf!      ./configure -disable-shared
      make      cd ..




ZLIB


      cd ImageMagick-      gunzip -c zlib-1.1.3.tar.gz | tar xvf -      mv zlib-1.1.3.tar.gz zlib
      cd zlib
      make      cd ..



>

If your computer system supports shared libraries you musttype
      make install
#
Finally, perform the following:
      cd ImageMagick>      edit Magick.tmpl and define Has???? as instructed      xmkmf      make Makefiles      make clean
      make
:
If prefer to use configure rather than Imake:
      configure      make clean
      make -k
F
If the compile fails due to a function redefinition it may be thatDeither jpeg/jconfig.h or mpeg/mpeg.h is redefining4const. Fix this problem and try again.

F

You can now convert or display images in the JPEG, TIFF, PNG, etc.image formats.

D

If you have HDF, JBIG, JPEG, PNG, and TIFF sources.installed as directed above, you can also type
      Install sun
J
Substitute the appropriate machine type (aix, hpux, sgi, etc).


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VMS Compilation



F

You might want to check the values of certain program definitionsKbefore compiling. Verify the definitions in delegates.mgk to suit%your local requirements. Next, type.



Type
!      unzip ImageMagick-4.1.3.zip       set default [.imagemagick]      @make)      set display/create/node=node_name::
=
where node_name is the DECNET X server to contact.



Finally type:

      display
I
Alternatively, get a zipped distribution (with JPEG, TIFF, andETTF) from 204.183.81.131.

O

The VMS JPEG, TIFF, and XPM source libraries are available on:axp.psl.ku.dk in [anonymous.decwindows.lib].



Thanks to O pmoreau@cenaath.cena.dgac.frOfor supplying invaluable help as well as the VMS versions of the JPEG, MPEG,#TIFF, and XPM libraries.


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NT Compilation



@

The NT@distribution contains MetroWerks Codewarrior Professional5projects and a Visual C++ workspace (thanks to9Bill Radcliffe) for@compilation. For those who do not have access to CodeWarrior or;Visual C++, the binaries for the command line utilities are enclosed.

$

If you have an NT X server likeMExceed you will also need to include



&    SET DISPLAY=:0.0
F
in the System Control panel (NT) or Autoexec.bat (Win95).CAutoexec.bat requires that you restart your computer. See0BTechnical Window System and OSF/Motif WWW Sites for a list of;commercial and free X server software. Without an X server:you can still display or0animate to, or@import from, a remote X server.*Convert,*mogrify,*montage,.combine, andFidentify, will work with or without-an X server directly from the command prompt.

1

To view any image in a Microsoft window, type



    convert image.ext win:


J

Import works if you have at least one#X window open. Alternatively, type



    convert x:root image.gif


K

Make sure gswin32 (Ghostscript) is in your execution path (seeHAutoexec.bat), otherwise, you will be unable to convert or viewa Postscript document.

H

Make sure iexplore (Internet Explorer) is in your executionIpath (see Autoexec.bat), otherwise, you will be unable to browse%the ImageMagick documentation.

6

To compile the source with Codewarrior, start withOMagick/Magick.mcp and then animate.mcp, convert.mcp,<etc.. The Visual C++ workspace is ImageMagick.dsw.

;

And yes, the NT executables will work under Windows 95.





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Macintosh Compilation



H

The Macintosh6Macintosh distribution contains MetroWerks CodewarriorAProfessional projects for compilation. For those who do not haveBaccess to CodeWarrior, the binaries for the command line utilitiesAare enclosed. I had to comment the inline intrinsic functions inKmath.h in order to compile. If you have a better solution, let meknow.1Display,5animate, and.import'currently do not work on the Macintosh.

&

I'm looking for a volunteer to get4Display andJanimate to work on the Macintosh.KI also need a volunteer is needed to write a simple Mac program to call the=libMagick routines and display an image in a window.


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Animation

=
To prevent color flashing on visuals that have colormaps,=animate(1) creates a single colormap from the image sequence.6This can be rather time consuming. You can speed this;operation up by reducing the colors in the image before youanimate them. UseEmogrify to color reduce the images:
0      mogrify +map -colors 256 scenes/dna.[0-9]*
(Alternatively, you can use a StandardMColormap; or a static, direct, or true color visual.You canKdefine a Standard Colormap with xstdcmap(1). For example, to.use the "best" Standard Colormap, type:
      xstdcmap -best)      animate -map best scenes/dna.[0-9]*
"
or to use a true color visual:
1      animate -visual truecolor scenes/dna.[0-9]*
B
Image filenames can appear in any order on the command line ifCthe scene keyword is specified in the MIFF image. Otherwise:the images display in the order they appear on the command>line. A scene is specified when converting from another imageBformat to MIFF by using the "scene" option with any filter.6Be sure to choose a scene number other than zero. ForKexample, to convert a TIFF image to a MIFF image as scene #2,type:
,      convert -scene 2 image.tiff image.miff



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16-BIT Imaging

H
By default, ImageMagick uses a color depth of 8 bits (e.g. [0..255]Mfor each of red, green, blue, and transparency components). Any 16-bit imageNis scaled immediately to 8-bits before any image viewing or processing occurs.GIf you want to work directly with 16-bit images (e.g. [0..65535]), edit<Magick.tmpl and define QuantumLeap or use3-enable-16bit with configure. Next, type:



    make clean    make


BIn 16-bit mode expect to use about 33% more memory on the average.6Also expect some processing to be slower than in 8-bit(mode (e.g. Oil Painting, Segment, etc).

EIn general, 16-bit mode is only useful if you have 16-bit images thatFyou want to manipulate and save the transformed image back to a 16-bit,image format (e.g. PNG, VIFF).



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64-BIT Machines

A
Each pixel, within ImageMagick, is represented by theDRunlengthPacket structure found in magick/image.h.EOnly 8 bits are required for each color component and 16 bits for theJcolormap index for a total of 6 bytes. If QuantumLeap is definedM(see 16-BIT IMAGING above), the color component size increases to 16 bits forFa total of 10 bytes. Some 64-bit machines pad the structure which can>cause a significant waste of memory. For the cray, change the*RunlengthPacket structure to this



#    typedef struct _RunlengthPacket    {      unsigned char        red : QuantumDepth,        green : QuantumDepth,        blue : QuantumDepth,        length : QuantumDepth;      unsigned short        index : 16;    } RunlengthPacket;


before compiling.

II'm not sure if this will work on other 64-bit machines that pad. If youHknow a better solution, please send me E-mail. Note, that the Dec AlphaFapparently does not pad the structure so ImageMagick should be fine onthis particular 64-bit machine.





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MIFF Image Format

N
MIFF is an image format which I developed.I like it because



    ;
  1. It is machine independent. It can be read on virtually4 any computer. No byte swapping is necessary.

    :

  2. It has a text header. Most image formats are coded in= binary and you cannot easily tell attributes about the= image. Use more(1) on MIFF image files and the- attributes are displayed in text form.

    :

  3. It can handle runlength-encoded images. Although most= scanned images do not benefit from runlength-encoding,; most computer-generated images do. Images of mostly7 uniform colors have a high compression ratio and4 therefore take up less memory and disk space.

    :

  4. It allows a scene number to be specified. This allows? you to specify an animation sequence out-of-order on the< command line. The correct order is determined by the" scene number of each image.

    8

  5. MIFF computes a digital signature for images.+ This is useful for comparing images.M If two image files have the same signature, they are identical images.

    A

  6. There is a montage keyword allowing an image to act asB a visual image directory. See display(1) for more details.


=

One way to get an image into MIFF format is to use>convert or read it from an Xwindow using the @import program. Alternatively,Jtype the necessary header information in a file with a text editor. Next,7dump the binary bytes into another file. Finally, type
;      cat header binary_image | display -write image.miff -
>
For example, suppose you have a raw red, green, blue image> file on disk that is 640 by 480. The header file would look like this:
+      id=ImageMagick columns=640 rows=480 :
E
The image file would have red, green, blue tuples (rgbrgbrgb...). Refer to theGdisplay manual page for more details.


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Copyright

7
Copyright 1999 E. I. du Pont de Nemours and Company

K

Permission is hereby granted, free of charge, to any person obtaining aIcopy of this software and associated documentation files ("ImageMagick"),Ito deal in ImageMagick without restriction, including without limitation Ithe rights to use, copy, modify, merge, publish, distribute, sublicense, Eand/or sell copies of ImageMagick, and to permit persons to whom the GImageMagick is furnished to do so, subject to the following conditions:

O

The above copyright notice and this permission notice shall be included in 3all copies or substantial portions of ImageMagick. 

O

The software is provided "as is", without warranty of any kind, express or Iimplied, including but not limited to the warranties of merchantability, Gfitness for a particular purpose and noninfringement.In no event shall IE. I. du Pont de Nemours and Company be liable for any claim, damages or Eother liability, whether in an action of contract, tort or otherwise,Karising from, out of or in connection with ImageMagick or the use or other dealings in ImageMagick. 

I

Except as contained in this notice, the name of the E. I. du Pont de ENemours and Company shall not be used in advertising or otherwise to Epromote the sale, use or other dealings in ImageMagick without prior Ewritten authorization from the E. I. du Pont de Nemours and Company. 


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