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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.
-