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WIDGET5.TXT
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1997-11-24
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Title: WIDGET5
Author: Andrew Sellors (asellors@orac2.demon.co.uk)
Version: 1.00
Title From: Documentation
Author From: Documentation
Version From: Documentation
Supplier: Andrew Sellors (asellors@orac2.demon.co.uk)
Date: 08/11/95
Keywords: Image processing systems
Shareware: No
Machine: Archimedes
Operating system: RISCOS
Memory requirements:
Peripherals needed:
Other s/ware needed: RISC OS 3.10 or later
Directory: micros/arch/riscos/d097
Date mounted/updated: 09/11/95
File names: widget5.arc
Unarchived files: 25
Unarchived size: 274 kbytes
Omissions:
See also: GREYEDIT (a114), AIM (a271), PROCESS (b009),
IMAGE (b173), SPRTOOLS (d073)
-------------------------------------------------------------------------------
Acquiring the package:
Download the archive file(s) and extract using SparkPlug 2
(see the "tools_help" file in micros/arch/riscos/tools for further info).
Description:
Widget 5 is a 256 grey level image processing package for square pixel
Sprites. It will work with any size of image, memory permitting. Widget 5
loads any file as a 256 grey level image, disregarding any palette, useful
for owners of the Brainsoft video digitizer. Images are stored in 12 separate
"Image Banks" in memory. Widget 5 can be run in any screen mode, but those
which have 256 grey levels in the palette will result in the best images.
Also supplied is Pal256, a utility for RISC OS 3.50 or later, which can
program the palette when in a 256 colour mode to a selection of predefined
palettes such as standard, greyscale and greyscale plus wimp colours.
* Widget 5 supports the following image manipulation functions:
* Add two images
* Average two images
* Mix two images
* Convolve an image to another using a NxM matrix (N,M in the range 1-9)
* Focal Analysis with the following localised processes on a
3x3, 5x5, 7x7 or 9x9 patch:
* Mean greylevel
* Median
* Maximum
* Minimum
* Changing image greylevels by:
* Drawing the mapping function using the mouse
* Applying a threshold value
* Applying a gamma correction value
* Applying histogram equalization
* Applying S.L.C.E. (Saturating Linear Contrast Enhancement)
* Scaling an image by resampling using bi-linear interpolation
* False colouring selected greylevel ranges and calculating the percentage
of each range.
* Levels slice by false colouring equally spaced sections of the total
grey level range to a defined number of sections and calculating the
percentages of pixels contained in each of the ranges.
* Widget 5 allows an irregularly shaped area mask to be defined to allow
localised processing.
* Area masks can be loaded and saved as text files of point coordinates.
* Widget 5 allows the image to be zoomed using the usual magnifier window
* Widget 5 can draw the following graphs from an image:
* Greylevel histogram
* Cumulative histogram
* Individual bar heights can be inspected on the graphs.
* Graph data can be saved as a CSV file to allow importation into another
package for analysis.
* Widget 5 allows Convolution Filters to be loaded and saved.