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- This document applies to version 1.0.1, written on 16th September
- 1994, Copyright (C) 1994 Andy Dean, Graham Dean.
-
- 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. For a detailed description of
- colour-mapped and 24-bit images, See Image types.
-
- Copyright and Disclaimer
- ========================
-
- No guarantee of any kind is given that the programs described in
- this document are 100% reliable. You are using this material at your
- own risk. The authors *can not* be made responsible for any damage
- which is caused by using this program.
-
- The unregistered package is freeware, but still copyright by Andy
- Dean and Graham Dean. This means that you can copy it freely as long as
- you don't ask for a more than nominal copying fee.
-
- The registered version of the program *may not* be freely
- distributed.
-
- Permission is granted to include the unregistered package in
- Public-Domain collections, especially in the excellent Fred Fish Amiga
- Disk Library (including CD ROM versions of it). The distribution file
- may be uploaded to Bulletin Board Systems or FTP servers. If you want
- to distribute this program you must use the original distribution
- archive ImageStudio.lha.
-
- This program (or parts of it) may not be included or used in
- commercial programs unless by written permission from the authors.
-
- 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.
- * 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 3rd 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.
- * On disk AmigaGuide and ASCII text 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
- * GIF (conforming to GIF87a)
- * 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:
- * Built in convolutions: Blur, Sharpen, Emboss, Raise, Edge detect.
- * User definable convolutions, load and save to disk.
-
- Effects:
- * Built in effects: 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. Reduce to any number of colours
- 2-256 (not limited to powers of 2).
- * Methods of palette colour choice: Colour distance, highest count
- and weighted average.
- * Dithers available for colour reduction: None, Floyd-Steinberg,
- Burkes, Stucki, Sierra, Jarvis, Stevenson-Arce.
-
- Palette:
- * 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.
-
- For details on how to register, See How to register.
-
- The authors
- ***********
-
- ImageStudio was written by Andy Dean and Graham Dean.
-
- Queries and orders (see How to register) 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
-