by Jamie Starling | Jul 18, 2022 | The Art of Technology
The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company’s first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The Zilog Z80 is a software-compatible...
by Jamie Starling | Jun 17, 2022 | The Art of Technology
In the past posts we looked at doing some image conversions using arrays and manual steps. All that is fun, it lets us see what is going on inside the black box. However, deadlines and everything else – we don’t want to have to reinvent the wheel each...
by Jamie Starling | Jun 15, 2022 | The Art of Technology
What is an image histogram – it is a profile of the occurrences of each gray level present in an image. In the visual example below – we are using a bar graph to visualize it. It starts at 0 and goes to 255, each vertical bar represents the number of times...
by Jamie Starling | Jun 8, 2022 | The Art of Technology
In the last post we took a look at averaging the RGB channels to produce a gray scale image. It does require some math division to get the result. If you need a way that is even simpler and faster than averaging – we can extract the values from one of the color...
by Jamie Starling | Jun 8, 2022 | The Art of Technology
Let’s us look at some ways of converting a color image into a black and white or gray scale image. The most straight forward approach is averaging the three color channels, RGB. GrayValue = (Red + Green + Blue) / 3 You do this for every pixel. It is quick and...
by Jamie Starling | Jun 6, 2022 | The Art of Technology
There are a tons of image already – instead of going though the pain staking process of creating by hand our own images, I am going to use an image I already captured. And yes, it is of my three cats. I am also adding to the collection of cat images on the...
