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Table of Contents
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Computer Graphics History
A brief history of computer graphics, from the earliest text character images from non-graphic mainframe computers
to the latest photographic quality images from high resolution personal computers. |
BMP
GIF
JPG
PNG |
Computer Graphics File Formats
The main reason for the many computer graphics file formats is their different methods of compression. Find out how
the file formats compare and how to choose the right format for the best results. |
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Optimizing Graphic Files
All of the graphics on this web site have been carefully optimized so that they reproduce well, take minimal space
and load as quickly as possible. From choosing the right file formats and quality settings to some surprising
revelations about hidden extras within image files! |
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Scanning Graphic Images
The process of scanning graphic images has many pitfalls. Resolution? Color depth? OCR? This section will demystify
some of the complexities of scanning and help you produce better scans without creating huge, unworkable files. |
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Photo Retouching
Retouching is a technical term that refers to the process of editing an image, usually by computer. This can include
anything from removing specks and blemishes, fixing damage, adjusting colours, merging images, or total edits.
See some examples of my retouching plus a simple tutorial. |
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Computer Graphics Samples
This is a collection of various graphics that were particularly complex to produce, complete with explanations of
the processes used in their creation. One example is my "World Zoom", which took over a week to create yet runs for
just over 15 seconds. |
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Optical Illusions
There are some age old optical illusions that are especially effective as computer images because of the bright
contrasts displayable on screen. Take a look at some that I've collected and/or re-drawn. |
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Digital Camera Info
Family and friends often ask my advice on digital cameras. Here's some technical info that you may also find
enlightening. |
Having experimented with computer graphics since the very earliest days (over 1/4 of a century ago), I consider
myself a "Pixeltech". This section gives some information and advice about computer graphics. Hopefully you can
benefit from some of my years of accumulated wisdom.