Author Archives: Geoff Shaw

Macro and close-up photography

Posted on January 10, 2023 by Geoff Shaw

Introduction These notes are meant to be a very brief introduction to Macro and Close-Up photography. There are many books (try your local libraries) that cover this area more comprehensively, as well as many online resources. A few are listed … Continue reading →

Posted in Uncategorized | Leave a comment

Recolouring Objects in Post Processing Software

Posted on November 1, 2022 by Geoff Shaw

Sometimes you may wish to recolour part of an image. Perhaps turn a black umbrella into a colourful red; perhaps change the colour of a dress; maybe change those red roses into the rare blue variety. Here are some notes … Continue reading →

Posted in Uncategorized | Leave a comment

G’MIC

Posted on August 24, 2022 by Geoff Shaw

G’MIC, GREYC’s Magic for Image Computing is a full-featured open-source framework for digital image processing. It includes a wealth of image processing filters (about 600 at the time I write this), and is available as a stand alone command line … Continue reading →

Posted in Advanced Edits, Artistic, Basic Edits, Post-Processing, Resources, Software | Tagged , , , | Leave a comment

Kaleidoscope effect

Posted on August 24, 2022 by Geoff Shaw

Repeating patterns catch the eye, and the Kaleidoscope effect certainly provides plenty of repeating patterns. Kaleidoscopes use angled mirrors to produce repeated patterns (https://en.wikipedia.org/wiki/Kaleidoscope), but this effect is easily achieved also in software like Photoshop or GIMP. There are lots … Continue reading →

Posted in Advanced Edits, Artistic, Basic Edits, compositing, How-to, Post-Processing, Software | Tagged , , , , | Leave a comment

Robert and Sharon Prenton-Jones – Ukraine Recording

Posted on April 12, 2022 by Geoff Shaw

The recording is located here (IT MAY TAKE A WHILE FOR THE FILE TO OPEN/PLAY!): www.camversation.co.uk/ukraine Password is: UKRAINE (ALL-CAPITALS!)

Posted in Uncategorized | Leave a comment

Generative Art

Posted on November 8, 2021 by Geoff Shaw

Early this year in one of the rare moments we were allowed to visit the NGV, I was entranced by the display in the foyer – a huge screen with an endlessly dynamic pattern, shifting and heaving and transforming. This … Continue reading →

Posted in Uncategorized | Leave a comment

Geoff’s Photo Doodler

Posted on November 8, 2021 by Geoff Shaw

The notes below should help get you started using my “Photo Doodler” program. First there is some background on what got me started on this project, then I give some examples, and then some brief instructions. Programming credits are at … Continue reading →

Posted in Advanced Edits, Artistic, beginner, compositing, How-to, Post-Processing, Software | 2 Comments

Triptych making in Photoshop and Lightroom

Posted on October 29, 2021 by Geoff Shaw

Geoff Shaw’s suggestions For some general comments on triptychs see HERE. This post will give a couple of approaches using Lightroom and using Photoshop. I use an example with the three images below (screen grab from my LR catalog). Lightroom. … Continue reading →

Posted in Advanced Edits, Artistic, beginner, compositing, How-to, Post-Processing | Tagged , , , | Leave a comment

Feathering

Posted on October 28, 2021 by Geoff Shaw

Feather. This does not refer to plumage of birds, but the fuzziness in a selection or mask or brush. If you will forgive the visual pun, the image right illustrates on the left panel a hard selection (low feathering) with … Continue reading →

Posted in Basic Edits, beginner, compositing, glossary, Post-Processing, Software | Tagged , , , | Leave a comment

Pixel

Posted on October 28, 2021 by Geoff Shaw

Pixel. pixels are the basic elements of images. Each pixel is a point in the image and has associated values for the brightness of the colours that make up that pixel (Red,Green,Blue or RGB). Black is (0,0,0) ie no brightness … Continue reading →

Posted in Basic Edits, beginner, glossary, Post-Processing | Tagged | Leave a comment