The following is a Plus Edition article written by and copyright by Dick Eastman.
Digital cameras are perhaps the most universal technology of today. Hundreds of millions of people around the globe own and use digital cameras – not bad for a technology that barely existed 20 years ago. In fact, you do not need to be an electrical or optics engineer to produce good pictures from a digital camera. You don’t even need to own a computer, although a computer will allow you to accomplish a lot more than what you can do with just the camera alone.
Most people use digital cameras like the old box cameras: point and click. Very few people spend the time to learn how to obtain the best pictures possible. Indeed, “point and click” works well; but, there is so much more that one can do.
The same is true for another similar technology: desktop scanners. Most people install the software that came with the scanner, insert a piece of paper or a standard photograph to be scanned, click the mouse, and then wait a few seconds for the results. Whatever appears on their screen is simply saved and never touched again or improved in any way. Most people are satisfied with the default operation. Again, these people miss out on the highest quality images possible.
Scanners and digital cameras use very similar technologies. One solution can work on both. With a slight change in your scanning and photography habits, plus a bit of software, you can greatly improve the quality of your scanning and photography.
We first have to understand how cameras and scanners actually record the images. I will discuss the process primarily in terms of cameras although scanners use a very similar process.
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