In the past, multiple monitors have been the domain of programmers. Visit Google headquarters, for example, and you wll see awe-inspiring configurations of screens: two, four, even six monitors, stacked side-by-side or one on top of the other. However, multiple monitors can also benefit just about … [Read more...]
Resolutions When Sampling Digital Images with Scanners or Using Digital Cameras
Seen side by side, it's clear that the original image has been, to put it mildly, somewhat obfuscated by the sampling process. Although in our example the difference is very noticeable, the loss of definition is an inevitable part of the image sampling process, no matter how fine … [Read more...]
Converting Images To Digital Computer Data
So ok, so far we've discussed that the world is analogue, and the computer is digital, but, you say... can we get back to pictures? Well, the fact is that image data is not only analogue in nature, it has many levels of complexity. With temperature, data can be measured in a linear … [Read more...]
Analogue and Digital Data
Let's not forget that computer data is digital: that is: it is a series of zeros and ones, and nothing else. It's a point easily forgotten. Computers, we know, have an extraordinary power to manipulate numbers at this digital level, which means (with a little number base work) they are perfect … [Read more...]
How Do You Put Picasso in PCs?
It's abundantly clear that the ever increasing quality of computer graphics has proved central to the success of the computer at home and in business. Vivid, clear, full colour images are highly desirable to computer users not simply because they make everything so much more attractive - … [Read more...]
Making Bitmaps with the RGB Colour System, Palettes and Look Up Tables
As an image is captured and a grid of colour samples built up, each grid location's colour needs to be given a representative number. Yes, we're finally getting back to numbers again! Like a painter, when dealing with images the computer uses a palette. The palette contains the colour … [Read more...]