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1995-03-15
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Short: Image processing program v2.0.0 Part 1 of 2
Author: Andy Dean and Graham Dean
Uploader: adean@eleceng.ucl.ac.uk
Type: gfx/conv
This document applies to version v2.0.0 of ImageStudio which is
Copyright (C) 1994,1995 Andy Dean and Graham Dean.
Important Points
----------------
o The Aminet distribution of ImageStudio comes in two
archives named "ImageStudio_1.lha" and
"ImageStudio_2.lha". Both archives are needed for a
full installation, although "ImageStudio_2.lha"
currently only contains the documentation.
o "ImageStudio_1.lha" should be de-archived onto a FFS
floppy disk named "ImageStudio_1" and similarly for
the "ImageStudio_2.lha" file in order for the install
script to work correctly.
o This distribution completely replaces the v1.2.1
distribution archive "ImageStudio.lha".
o Registered users of v1.x.x of ImageStudio can upgrade
to a fully functional version 2.0.0 from this
distribution.
New for v2.0.0
--------------
o Added ARexx.
o Added AmigaGuide online help.
o Added program Iconify.
o Added AppIcon for drag and drop file loading.
o Added hook functions to ASL screenmode requesters to allow
refreshing in the background.
o Added current filename to the preview window title bar.
o Added the ability to read corrupt files upto the point at
which they become corrupt.
o Standard Commodore Installer script.
o Changed HAM remapping tables when using the internal 24bit
viewer - no more "Remapping..." waits.
o Changed preferences window.
o Removed GIF save.
Brief description
-----------------
ImageStudio is written for the casual graphics user who wishes to
convert or manipulate various graphics formats on a modest Amiga
system. There are several commercial offerings available, however the
casual user is paying a lot of money for many facilities and options
they would probably never use.
Bitmap graphics, by their nature, usually require large amounts of
RAM. One of the main objectives of ImageStudio was to reduce this
burden by utilising virtual memory - most users have more spare hard
disk space than spare RAM.
ImageStudio works with several buffers at any one time (dependant on
how many levels of undo are specified), each of these buffers can hold
either colour-mapped or 24-bit images.
ImageStudio comes with a fully featured ARexx port, which allows the
writing of macro scripts to automate repetative processes and also
allows communication with other ARexx aware programs. Again, ARexx has
the reputation of being "something pretty difficult", so we've
simplified the use of ARexx in ImageStudio by allowing the user to
create, edit and run scripts entirely within ImageStudio - ImageStudio
even provides a blank template as a starting point for each new script.
Machine requirements
====================
ImageStudio requires the following system to run:
* Workbench 2.04 or above.
* Around 1 megabyte of free memory.
* Several megabytes of free hard disk space.
If ImageStudio is run on an AGA machine (A1200 or A4000), it will
use the new display modes and palette routines to improve the quality
of the internal viewer images.
List of features
================
General:
* Full 24-bit image buffers, with optimizations for colour-mapped
(palette based) images.
* Up to 100 levels of undo / redo.
* User configurable virtual memory.
* Fully featured, easy to use, ARexx interface.
* User saveable preferences.
* Operations applicable to the whole image or a selected region.
* Up to 256 greyshade preview window (with optional dither).
* Zoom on preview window.
* Internal / external viewers (external for third party 24-bit
graphics cards).
* Loading / saving / manipulating of AGA image formats (e.g. 256
colours, HAM8) on non-AGA machines.
* Max image size of 32000 x 32000 (limited to 250 x 250 in the
unregistered version).
* Copy / paste to / from the system clipboard.
* Runs on all Workbench 2.04+ Amiga's - utilises AGA chipset if
available.
* Online AmigaGuide help, as well as ASCII, TeX `.dvi' and
PostScript documentation.
* Multi-level help error requesters.
* Standard Workbench2 interface.
* Public screen.
* Requires no third party libraries or utilities.
Import:
* IFF-ILBM formats (Standard palette based, HAM6, HAM8, extra
halfbright, ILBM24)
* BMP
* GIF (conforming to GIF87a)
* JPEG (conforming to JFIF standard)
* PCX
* Targa
* Any installed Amiga datatype (with Workbench 2.1+)
Export:
* IFF-ILBM formats (Standard palette based, HAM6, HAM8, extra
halfbright, ILBM24)
* BMP
* EPS
* JPEG (conforming to JFIF standard)
* PCX
* Targa
Colour Balance:
* All operations are available to the R,G,B components separately.
* Brightness ( upto ±100%)
* Contrast (non to full)
* Gamma ( + and - )
Convolution:
* Many supplied convolution filters.
* User definable convolutions, load and save to disk.
Effects:
* Built in effects: Dynamic range expansion, FlipX, FlipY, RollX,
RollY, Negative, Greyscale, Highlight, Shadow, Random, Pixelize,
Remove isolated pixels.
Scale:
* Crop to selected region.
* Increase / decrease scale by percentage or absolute image size.
* Simple scale or colour averaged.
Colour reduction:
* Increase colour mapped images to 24-bit.
* Decrease number of colours in 24-bit or colour mapped images via
Heckbert median cut algorithm.
* Dithers available for colour reduction: None, Floyd-Steinberg,
Burkes, Stucki, Sierra, Jarvis, Stevenson-Arce.
Palette:
* Edit palette colours and ranges.
* Save current palette.
* Force palette onto current image, dithering if necessary (all
dithers available).
Shareware version
=================
To encourage users to register, the freely distributable version of
ImageStudio is limited to loading in pictures upto 250x250 pixels. All
other operations are available.
The authors
***********
ImageStudio is written by Andy Dean and Graham Dean.
Queries and orders should be sent to Graham at:
Graham Dean,
14 Fielding Avenue,
Poynton,
Stockport,
Cheshire.
SK12 1YX
ENGLAND
Andy can be reached for queries (no orders) via Internet Email at:
adean@eleceng.ucl.ac.uk