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1995-12-21
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IFF - FX 1.0 AGA
================
A Progam to perform several effects on IFF/ILBM
Pictures on an Amiga with AGA - Chipset.
IFF_FX is Freeware. (Freely Distributable)
This archive should contain:
IFF_FX ;The Program
IFF_FX_AGA_doc ;English documentation
IFF_FX_AGA_dok ;Deutsche Anleitung
pics/ ;A directory with samplepics.
------------------------------------------------------------------------
Versions:
1.0 - First Version.
------------------------------------------------------------------------
IFF_FX is Copyright © 1995 Ralf Treuherz. All Rights reserved.
The author will take no responsibility for any damage which results
in improper use of this program.
------------------------------------------------------------------------
Description
-----------
Based on a picture of 256 values of grey the program will perform
some mathematical operations like the detections of edges and will
save the result as an IFF/ILBM picture.
To ensure the most flexible use of this program, I incorporated a
converter which will convert any pic (except HAM) in the format
needed by the algorithms.
------------------------------------------------------------------------
Requirements
- An Amiga 1200 or 4000
(sorry, but the algorithms needed 256 steps of grey!)
- reqtools.library
------------------------------------------------------------------------
How to start IFF_FX
-------------------
IFF_FX can be called either from Workbench or CLI.
* Usage from Workbench
Double-click the Icon. The rest should be quite intuitive:
Select a Source-Picture (SourcePic) and a Destination-
Picture (DestPic), choose an effect, and press "Process" !
* Usage from CLI
IFF_FX <SourcePic> <DestPic> [Effect]
<SourcePic> and <DestPic> are filenames of Pictures and [Effect]
is an optional Number 0-7 for an effect (see below)
------------------------------------------------------------------------
The Effects
-----------
If both a Source- and Destination-Picture is chosen, the Program
will compute the Destination-Picture from the Source-Picture
with the following Effects:
a) Effect: none or 0 / Button: Grey
The Result is a Greyscale - Representation of the Source.
The number of Bitplanes is not changed.
b) Effect: 1 / Button: Amplitude
The Result is a Picture containing the Quality of the Edges
in the SourcePic using the Sobel-Operator. Edges which sourround
an Object in the SourcePic will result in a closed line in the DestPic.
c) Effect: 2 / Button: Phase
The Result is a Picture which contains the Direction of
the Edges. Perhaps of little use to pictures with very
high detail.
d) Effect: 3 / Button: Outline
The Result is a Picture that looks like a Relief. Especially
useful for Workbench-Backgrounds if you convert the resulting
256-Greys - Picture to fewer colors using the appropriate program.
e) Effect: 4 / Button: Smooth
The Source - Picture is smoothed with a 2*2 Grid.
f) Effect: 5 / Button: Invert
This Effect inverts the Colormap and will not change the
number of Colors in the Picture.
g) Effect: 6 / Button: SwapColor
This Effect swaps the Entries for Red/Green/Blue in the
colormap and will not change the number of Colors in the Picture.
h) Effect: 7 / Button: Rasterize
The Picture is rastered with a 2*2 - Grid. The number of
Colors is not changed.
------------------------------------------------------------------
The Author
----------
Ralf Treuherz
gl176@appl1.hrz.uni-siegen.de
Please send any comments about this Program to this E-Mail address.