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The best Image Quality in Digitisation Projects

ADOC Solutions brings you the highest quality in the digitization of your documents. For scanning, the term "high quality" refers to capturing an image or document with a high level of detail, clarity, and accuracy. Achieving high-quality scans involves several factors, including resolution, color depth, and settings. Here are some key factors that contribute to high-quality scanning:

Resolution: Resolution is measured in dots per inch (DPI) and determines the level of detail in the scanned image. A higher DPI results in more detail, but it also increases the file size. For documents and photos, a common high-quality resolution is 300 DPI or more. For specialized purposes like archival scanning, higher resolutions may be used.

Color Depth: Color depth refers to the number of colors a scanner can capture per pixel. More colors lead to greater color accuracy and smoother gradients. Common color depths are 24-bit (8 bits per channel), resulting in millions of colors, and 48-bit (16 bits per channel) for even higher accuracy.

File Format: Choosing the right file format can affect the quality of your scans. TIFF (Tagged Image File Format) is a lossless format that preserves image quality, while JPEG (Joint Photographic Experts Group) is a compressed format that sacrifices some quality for smaller file sizes.

Scanner Quality: The quality of the scanner itself matters. Higher-end scanners typically have better optics, sensors, and mechanisms for capturing fine details and minimizing distortion.

Scanning Software Settings: Most scanning software allows you to adjust settings like contrast, brightness, color balance, and sharpness. Experiment with these settings to achieve the best possible image quality.

Calibration: Regularly calibrating your scanner ensures accurate color reproduction and consistent image quality over time.

Handling Originals: When placing documents or photos on the scanner, handle them carefully to avoid smudges, scratches, or other damage that could degrade image quality.

Post-Processing: After scanning, you can use image editing software to further enhance the quality of the scanned images by adjusting levels, removing dust and scratches, and applying color correction if needed.

Our scanners benefit from the best standards to certify the quality of the scans :

ISO 19264-1 : this standard describes a method for analysing imaging systems quality in the area of cultural heritage imaging. The method described analyses multiple imaging systems quality characteristics from a single image of a specified test target. The specification states which characteristics are measured, how they are measured, and how the results of the analysis need to be presented. This specification applies to scanners and digital cameras used for digitization of cultural heritage material.

FADGI : FADGI stands for "Federal Agencies Digital Guidelines Initiative." It is an initiative that was developed by a group of U.S. federal agencies to establish guidelines and best practices for creating and preserving digital content, particularly cultural heritage materials such as photographs, documents, audio recordings, and video recordings.

The FADGI initiative provides guidance on various aspects of digitization and digital preservation, including technical specifications, quality control, metadata standards, and more. The goal of FADGI is to ensure that digital content created or preserved by federal agencies meets high standards of quality, accuracy, and longevity, making it accessible and usable for both current and future generations.

FADGI guidelines are often referenced by cultural heritage institutions, libraries, archives, museums, and other organizations involved in digitization and digital preservation efforts. These guidelines help ensure that digitized materials are accurately represented, properly preserved, and made available to the public in formats that maintain their authenticity and informational value over time.

METAMORFOZE : The main objective of the METAMORFOZE program is to digitize and preserve important and valuable cultural heritage materials, including books, newspapers, manuscripts, photographs, maps, and other documents, to ensure their long-term accessibility and availability for researchers, scholars, and the general public. The program follows international digitization and preservation standards and guidelines to ensure the highest quality and longevity of the digitized content.

METAMORFOZE employs high-quality digitization practices, including careful handling of original materials, precise scanning techniques, and thorough metadata creation. The program also emphasizes the use of standardized file formats and the creation of preservation copies to ensure that the digitized materials remain accessible and usable over time.

For archival purposes, you may opt for the highest resolution and color depth to preserve every detail. For general use, balancing quality with manageable file sizes might be more appropriate. Always consider the end use of the scanned images when determining the optimal settings.

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