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Sun Day, 4 June 2023
10:55:12 Pacific Daylight Time,  12 Kab'an,  5 Sotz'  in the Mayan long count calendar.

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Photoshop plugins: 
For all compatible applications such as PhotoLine or IrfanView.
The Very High Radius Contrast Mask and Very High Radius Shadows/Highlights filters were released in June 2019.
Version 1.202 of four of the filters, with improved masks and speed improvements, were uploaded 6/29/2019.
Fine USM Sharpen/Deblur – full control over the unsharp masking and deconvolution processes:  luminosity mode, halo elimination, very high amounts, edge masking, and blend ranges
Very High Radius Unsharp Mask – high radius unsharp mask contrast enhancement for large images
Adaptive Histogram EQ – dramatic contrast or detail enhancement
Adaptive Contrast Curve – adaptive contrast enhancement
Very High Radius Contrast Mask – contrast masking for large images
Very High Radius Shadows/Highlights – a Shadows/Highlights control for large images
Ultimate Hue/Saturation Control – selectively adjust chroma and vibrance
Channel Saturation – adjust the chroma and vibrance of four or six opponent colors independently
Saturation Mask – create a saturation or chroma mask for a hue/saturation layer
Very High Radius High Pass Contrast – high radius high pass contrast enhancement for large images
Retinex – adjust lightness and color based on human vision
RG Color – convert RGB images to the RG color space
Glamour Blur – selective contrast reduction for portraits
Hue/Saturation Channels – extracts a hue or saturation channel from an RGB image

Please visit the gallery.

Latest news: 

The Little Argyll GUI version 1.0 was uploaded 5/4/2023.

Wrap an image around a glass so that it appears rectilinear when viewed straight on.  Uploaded 12/12/2022.

Optical Print Centering was updated 11/17/2022 to be simpler and more interactive.

xyY cross-section and Lab cross-section were updated 9/7/2022.

The RGB-XYZ Matrix Calculator was updated 8/27/2022.

The Gamut Plotter was uploaded 8/18/2022.

A comparison of PhotoLine’s interpolation methods was uploaded 8/2/2022.  It includes a JavaScript Zone plate generator that calculates the width of the outermost zone.

The genealogy page was updated 11/14/2021.  The family tree now goes back to William the Conqueror and includes two Mayflower families.

The RGB-XYZ Matrix Calculator was updated 3/30/2021, including complete chromatic adaptation output, and parameters for Display P3.

Solar and Lunar Data, including animations and calculators for solar events and moon phases, were added to the blog 6/16/2020.

The Unicode font utilities (The Polytonic Greek Virtual Keyboard, The Unicode Range Viewer, The Surrogate Pair Calculator, and The Greek Number Converter) were updated 1/18/2020.

Fractals etc. was uploaded 12/28/2019, including four fractal image generators and a JavaScript complex number class definition.

A Rune Script was uploaded 10/8/2019.

The Virtual Yarrow Stalks I Ching was updated 9/28/2019.
It now includes four translations and six methods of consulting, including coin odds with yarrow stalks, playing cards, and fractal images.

Another Fractal I Ching was updated 9/28/2019 with the Zaslavsky web map.

The Tarot of Ideals page was updated 9/23/2019, with a new downloadable script.  It also has a downloadable .pdf summary.

The Astrology Oracle Cards page was uploaded 9/14/2019.

MoCA Score was uploaded 8/6/2019.

The QTc calculator was uploaded 7/29/2019.

The Mouse Pointer Random Number Generator was uploaded 11/30/2017.

Optical Print Centering was updated 10/21/2017 with more methods of print and mount resizing.

The Little Argyll GUI was uploaded 4/19/2015.

A Color-Managed Linux Workflow was uploaded 1/27/2015.

The Windows vs. Linux Zone System calibration page was updated 1/3/2015.

Zone System Calibration with RawTherapee was uploaded 2/2/2014.

The ImageJ plugin Color Transformer 2, and some other color management pages, were uploaded 2/2/2014.

The i1Profiler .cxf Optimization Files page was updated 9/29/2012.

The JavaScript Chessboard was uploaded 4/7/2012.

The Chess960 Numbers Decoded was uploaded 4/6/2012.
Convert to and from Chess960 numbers mathematically, without lookup tables.

The Mayan Long Count Calendar was uploaded,  5 Ok,  18 K'ank'in.

Beyond the Digital Zone System was updated 10/1/2011, with a beginner’s introduction to the digital zone system.

The Russell RGB color space was uploaded 9/10/2011.

The Virtual Yarrow Stalks I Ching was updated 7/11/2011.

Visit Optical Print Centering for a Photoshop script that centers an image on the canvas.

Beyond the Digital Zone System was uploaded 5/9/2010.

Optical Print Centering was updated 6/15/2010.  Now sleeker, without using a popup window to display the results.

The Virtual Yarrow Stalks I Ching was uploaded 11/27/08.

Mandala Explorer fractal image generator was uploaded 12/25/07.  It has a number of advanced features including oversampling, histogram equalization, image animation and 3-D rendering.

A new version of the Unicode Range Viewer, and a Unicode surrogate pair calculator and text converter were uploaded 3/30/07.  Internet Explorer 7 now displays characters in UTF-8 and UTF-16 encodings.

A new version of the Polytonic Greek Virtual Keyboard was uploaded on on 1/7/07.  Works in Opera as of 3/3/07, with some limitations.

The Unicode Greek fonts page was updated on 12/23/06; it now includes thirty-nine fonts.

See the Lithium Calculator.

The Greek Number Converter converts numbers to the alphabetic Greek format.

northern CA

Welcome from northern California!  Have relocated to Chico as of 8/05 to work at the V.A. outpatient clinic.  See

The Unicode Range Viewer has been updated to display the upper Unicode ranges above 0xFFFF.

The Unicode Greek fonts page was updated on 10/12/04 to include two more fonts.  See who is linking to the Aristarcoj font.

Audrey’s page was added 8/04.

The Photo site was updated on 3/25/04; check out Optical Print Centering and Half Dome—The Motion Picture.

The Greek page guestbook was updated on 12/7/03.  All active server pages are now written entirely with JavaScript.

The mail server was updated to JMail on 11/29/03.  Messages are now sent in HTML format, and a bug was fixed that caused an error if a bad e-mail address was used.  Visit the contact page to try it out.

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