Category Archives: E

Electromagnetic spectrum

The electromagnetic spectrum describes the detectable and measurable wavelengths (lambda in m) and frequencies (in Hz) that occur in nature and classifies radiation according to wavelength into types of radiation ranging from gamma radiation to low frequency.

The division into different ranges of electromagnetic radiation serves to visualize, describe and compare their different properties and effects on our environment. One possible type of radiation is visible light, which can be divided into the color spectrum. However, this part, which is visible to the human eye, is only a small part that occurs in nature. The wavelength of visible light is about the size of a cell (1nm = 10-9m = 0.000 000 001m).

On the common scale of the electromagnetic spectrum, on the left is the range of long-wave UV radiation (10-10m), which contains higher energies. We know this range of the electromagnetic spectrum mainly from solar radiation. An even higher energy than UV radiation is contained in X-rays and gamma radiation, which are used in medicine for X-ray images and radiation therapy for cancer.

In the middle range of the electromagnetic spectrum is the only range visible to the human eye. This acts as the light spectrum.

Among the more curvilinear radiations with low energy, which are located on the scale to the right of the visible range, is infrared radiation. It is also called thermal radiation, because every object and living being mainly emits this radiation. The wavelength here is about the size of a nail tip (10-5m). Infrared radiation is followed by microwave radiation, radio waves and low frequency radiation.

ECI-RGB color space

Why using the ECI-RGB color space?

The ECI-RGB V2 color space is one of the standardized RGB color spaces.

It is the working color space recommended by the ECI (European Color Initiative) and the Metamorfoze Preservation Imaging Guidelines for professional image processing.

As a working color space for professional image processing ECI-RGB V2 covers practically all monitors/display technologies and the vast majority of printing systems/printing processes (without being unnecessarily too large).

At first glance, the largest possible RGB color space may seem ideal, since it covers all other color spaces. However, since many color values have to be truncated or interpreted during the computational conversion to much smaller color spaces, inaccuracies can slip in.

The corresponding ICC profile for integration in image processing programs can be downloaded free of charge from the ECI website and allows constant color reproduction on all output devices. ECI-RGB thus particularly fulfils the requirements for true color reproduction.

Color-accurate directly from the camera:

Thanks to the unique True Color Management of book2net scanners and repro systems, it is possible to create color-accurate scans directly from the camera in the color spaces sRGB, Adobe 1998 RGB, ECI-RGB V1 and ECI-RGB V2. Thus, all requirements of digitization guidelines, specifications and standards can be easily fulfilled.

The big advantage of the book2net True Color Management: In contrast to the production of an ICC profile, which is computed by a “calibration software” on the basis of a 24 bits color scan by a X-Rite Color Checker, the book2net True Color Management uses the advantage of all computations and adjustments in the own image area of the camera with a color depth and analysis depth of 48 bits. As a result, colors are captured even more accurately and signal noise is minimized.

Exposure time

When scanning, the exposure time determines the length of time light falls on the sensor. If all other parameters remain constant, the picture becomes brighter with increasing exposure time. In inexpensive cameras, the exposure time is regulated by a mechanical shutter and it is set how long the shutter stays open to let the light through when taking the picture. The shutter then closes and no further information reaches the sensor.

In contrast, in our systems, we are using our X71 camera, which works with an electronic shutter. The 71 megapixel camera was especially designed for demanding continuous use in the digitization sector, providing a long service life. Therefore, the camera does not work with a mechanical fastener that is susceptible to wear. In order to regulate the time in which the sensor receives information, the sensor is electronically darkened and hence completely motion-free. This guarantees constant and reproducible exposure times even with high-volume digitization projects. The use of highly sensitive area sensors also reduces the duration of the necessary exposure time and, as a result, the scan time, thus supporting the most gentle and productive scanning.

The exposure time can also be individually regulated using our Easy Scan scanning software, which is very helpful, for example, when digitizing transparencies. Due to the changing film and transparency templates, it may be necessary to adjust the exposure time individually in order to obtain optimal results, regardless of the film density, material or pigment type.

EIZO monitor

Scanned documents are best viewed and evaluated using various measurement methods, because only measuring objective data, such as RGB values or sharpness, provides a meaningful result.The human eye is often fooled by various factors. In particular, the display of monitors varies greatly and often does not represent the actual scan result.

For this reason, we always offer quality monitors from EIZO in various configurations with our systems. The advantage of these monitors is that they can be calibrated in different color spaces and thus work color accurately. Especially for professional digitization work, but also for daily scanning, such a monitor supports the user in visual quality control without misinterpreting colors or luminance.

Depending on the customer’s needs and application, the screens are available in different configurations and sizes. Please contact us if you are interested.

Easy Scan scanning software

Especially for professional digitizing, but also for use in public areas, such as reading rooms or visitor areas of archives, it is important to work with scan software that is intuitive and easy to use, but at the same time offers all the functions needed for productive digitization.

All our systems work with the Easy Scan software that we have developed. We have placed special emphasis on simple and convenient operation and made sure that the most important functions can be found quickly and are not hidden in confusing submenus.

The entire interface is also optimized for touchscreen use and, if desired, available with a Windows Embedded operating system that guarantees security, reliability and long-term availability.

This means that operation takes place in a protected area, similar to an ATM or ticket machine, for example. This is particularly useful when installed in a public place, to protect the scanner from unintentional tampering with the operating system or the introduction of viruses.

Benefits of Easy Scan scanning software:

Our Easy Scan software is the user-friendly interface for controlling our scanning systems. With its clear appearance, you will be guided to an optimal scan even without previous experience.

The integrated video mode provides you with essential support during the placement of the originals. With the additional “Live Control Professional” module, the software analyzes the original in video mode before the scan, recognizes its size and possible incorrect positioning, adjusting it automatically by deskewing and placing frames to align the image. Thus, without any additional effort, you get an optimal scan proposal, which you can then confirm directly by triggering the scan.

Further image processing tools such as page separation, scanning of single pages (left side or right side), center adjustment, contrast control, print cutout, multipage, frame setting or inverting are only a part of the possible functions offered on the way to a perfect result.

The job functions allow you to organize even larger projects in a structured and systematic way. You can assign individual job names, load and edit past jobs, or easily add additional pages later. Easy Scan supports you and takes care of the complete reorganization of files.

Despite all the automation, however, you can intervene at any time. Manual cropping and alignment, frame setting, color and format selection or individual file naming are also possible.

Created scans can be loaded from the preview pane, allowing a direct quality control while scanning. If necessary, faulty scans can be deleted or directly replaced by a new page.

Many other functions such as character recognition (OCR), fingerprint removal, book fold correction, etc. are explained in more detail in our “Easy Scan” brochure.


Ergonomics is defined as ‘the science of the laws of human or automated work’ with the objective to create a good working atmosphere and avoid health problems.

Thereby, the ergonomic design of the workplace is of increasing importance, especially in office and production areas with predominantly seated or standing activities in front of screens or machines. This also includes the optimization of the working environment and the workstation components such as chairs, tables, keyboards, screens or control buttons to the needs and physical requirements of the working people. Strained vision, dazzling light or poor posture can cause considerable damage to health, especially with long-term exposure.

Ergonomics is therefore a common thread running through the development of all scanning systems at book2net. User-friendly software, fast data processing, glare-free lighting and ergonomic design make it easier for the user to work on the devices and minimize physical stress.

In particular, our production and large format scanners are designed to be extremely user-friendly, which guarantees a relaxed, productive workflow over many hours:

– The devices can be operated as a seated workstation.
– The working height can be optimized using adjustable feet.
– The device can be operated comfortably either by hand and/or foot switch.
– The adjustable LED lighting ensures glare-free work.