Girona: Digitization systems and procedures in photographic image archives


22-23 May 2012 - Europeana Photography Workshops

The workshop aims to provide an overview of the available systems for original photographic materials digitization as well as the procedures in order to obtain the best results in terms of image quality and fidelity to the original.


  • Carles Mitjà. Teacher of Image Technology at Centre de la Imatge I la Tecnologia Multimèdia (CITM), Universitat Politècnica de Catalunya (UPC). Coordinator of the Image Quality Laboratory at CITM/UPC.
  • Bea Martínez. Teacher of Colour Management at Centre de la Imatge I la Tecnologia Multimèdia (CITM), Universitat Politècnica de Catalunya (UPC).

Centre de Recerca i Difusió de la Imatge (CRDI). Placeta Institut Vell, 1. Girona.


Tuesday 22 May. CRDI, Girona

9:00 Welcome by CRDI Director
9:15 Start workshop
10.30 Coffee break
11.00 Continuation Workshop
13:00 Lunch
14:00 Continuation Workshop
16.15 Coffee break
16:30 Continuation Workshop
18:00 Closing
18:30 Visit to Cinema Museum
21:00 Social dinner

Wednesday 23 May. CRDI, Girona

9.00 Start workshop
11.00 Coffee break
11.20 Continuation Workshop
13:00 Lunch
14:00 Continuation Workshop
16:00 End of workshop


1. Basics of digital images
1.1. File vs image
1.2. Digital image coordinates
1.3. Spatial resolution
1.4. Chromatic resolution
1.5. Digital image visualization
1.6. Image data extraction

2. Digitization
2.1. Continuous and discrete spaces
2.2. Digitizing with scanner
2.3. Digitizing with camera
2.4. Properties of digitization with scanner
2.5. Properties of digitization with camera

3. Digital image quality
3.1. Image aberrations
3.2. Light diffraction
3.3. Lens resolving power (RP)
3.4. The Modulation Transfer Function (MTF)
3.5. The Signal to Noise ratio (SNR)
3.6. The Opto Electronic Conversion Function (OECF)

4. Cameras for digitization
4.1. Optical components
4.2. Electronic Components
4.3. File formats: raw vs TIFF and JPEG
4.4. Camera settings

5. Lighting the original
5.1. Lighting instruments
5.2. Lighting and the original
5.3. Lighting and the digital image
5.4. Translucent originals: transmission lighting
5.5. Flat opaque originals: uniform reflected lighting
5.6. Textured opaque originals: directional reflected lighting

6. Image processing
6.1. Basics of image processing tools
6.2. Spatial and frequency spaces
6.3. Processing over data extraction
6.4. Treatment of noise
6.5. Treatment of edges visibility
6.6. File versions generation

7. Displaying digital images
7.1. Display systems
7.2. Display pixels
7.3. Output Resolutions
7.4. Displaying and user influence

8. Colour Management
8.1. Colour reproduction in digital images
8.2. Device dependent colour spaces: RGB and CMY
8.3. Device independent colour spaces: CIE-Lab and CIE-xyY
8.4. ICC Profiles: creation and application
8.5. Standard ICC Profiles
8.6. Colour calibration of RAW images
8.7. Colour Management tools: Assigning vs Converting
8.8. Colour Management in digital imaging workflow


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Documents to download