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Photo Retouching

While scanners provide an effective means of capturing colour images, that's often just the beginning. Once a photograph, for example, has been digitised, its appearance can be dramatically altered by use of a bitmap editor or paint … [Read more...]

Filed Under: Scanners

OCR Technology

When a page of text is scanned into a PC, it is stored as an electronic file made up of tiny dots, or pixels; it is not seen by the computer as text, but rather, as a picture of text'. Word processors are not capable of editing bitmap images. In order to turn the group of pixels into editable words, … [Read more...]

Filed Under: Scanners

Color Calibration

One of the frustrations of using a desktop scanner is that a scanned image can look different on screen than it does when printed, and both can vary quite a bit from the original. The solution to this problem is a colour calibration (or colour … [Read more...]

Filed Under: Scanners

TWAIN Drivers

Surprisingly TWAIN is not an acronym, but a very important standard in image acquisition, developed by Hewlett-Packard, Kodak, Aldus, Logitech and Caere which specifies how image acquisition devices such as scanners, digital cameras and other … [Read more...]

Filed Under: Scanners

Scanner File Formats

The format in which a scanned image is saved can have a significant effect on file size - and file size is an important consideration when doing some image and document scanning, since the high resolutions supported by many modern scanners can result in the creation of image files as large as 30MB … [Read more...]

Filed Under: Scanners

Scan Modes

PCs represent pictures in a variety of ways - the most common methods being are line art, halftone, greyscale, and colour: Line art is the smallest of all the image formats. Since only black and white information is stored, the computer … [Read more...]

Filed Under: Scanners

Dynamic Range Scanners

Dynamic range is somewhat similar to bit-depth in that it measures how wide a range of tones the scanner can record. It is a function of the scanner's analogue-to-digital converter - along with the purity of the … [Read more...]

Filed Under: Scanners

Bit-Depth Printers

When a scanner converts something into digital form, it looks at the image pixel by pixel and records what it sees. That part of the process is simple enough, but different scanners record different amounts of information about each pixel. How much … [Read more...]

Filed Under: Scanners

Color Scanners

Colour scanners have three light sources, one for each of red, green and blue primary. Some scanning heads contain a single fluorescent tube with three filtered CCDs, while others have three coloured tubes and a single CCD. The former … [Read more...]

Filed Under: Scanners

Scanner Interpolation

Scanners typically offer resolutions of 2,400dpi, 4,800dpi and 9,600dpi. Its important to realise that scanners simply aren't capable of picking up this level of detail. The actual optical resolution of the CCDs in most … [Read more...]

Filed Under: Scanners

Next Page »

A Harsh Reality You Can’t Ignore About Network Information Security

We are becoming more and more connected to our lives with computer technology. They help to process data at work. We receive money using plastic … [Read More...]

What is the Best VPN for Gamers?

Of the 44% of UK Internet users who have used a virtual private network (VPN) at some point in their lives, approximately 39% of this demographic are … [Read More...]

Think About Headless Commerce as of a Modular System

In recent years, eCommerce has transformed to where consumers no longer handle purchases on conventional websites. Shopping is currently carried out … [Read More...]

Service That Succeeds: How To Build an Effective IT Service Desk

In today’s tech-forward world, building a capable IT service team is essential for businesses hoping to scale tech-related hurdles and soar past the … [Read More...]

A simple PC guide on keeping safe while using public Wi-Fi

Did you know that there is a cyberattack every 39 seconds? You are more likely to be a victim if you are lax about your digital security. This … [Read More...]

Motivating Students to Learn Computer Science

Computer science has been an important part of the educational curriculum for decades. Professor Seymour Papert, a mathematician from South Africa … [Read More...]

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Recent Posts

Guide to SmartMedia cards, introduced as Solid State Floppy Disk Cards (SSFDC)

The SmartMedia memory card format was one of the earliest, introduced by Toshiba in 1995, when it was referred to as the Solid State … [Read More...]

Scan Modes

PCs represent pictures in a variety of ways - the most common methods being are line art, halftone, greyscale, and … [Read More...]

Background Principles to Creating a Good Digital Music Management System

Background Principles The following aims and requirements are met by this DMMS. They are in no particular order of priority or preference. A … [Read More...]

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