ABSTRACT
CONTENTS 12.1 Introduction ..................................................................................... 386 12.2 Dermatological Databases ................................................................ 388 12.3 Dermatology Digital Imaging ........................................................... 389
12.3.1 Image Acquisition ................................................................ 389 12.3.2 Image Preprocessing Challenges .......................................... 390
12.3.2.1 Color Spaces .......................................................... 390 12.3.2.2 Illumination........................................................... 392 12.3.2.3 Color Correction.................................................... 393 12.3.2.4 Contrast Enhancement.......................................... 394 12.3.2.5 Hair Removal......................................................... 395 12.3.2.6 Image Restoration ................................................. 397
12.3.3 Imaging Preprocessing Algorithms ...................................... 397 12.3.3.1 Reflection Detection .............................................. 397 12.3.3.2 Blur Detection....................................................... 398
12.4 Mobile Teledermatology: Toward a Patient-Oriented Design Approach .......................................................................................... 400 12.4.1 Patient-Oriented System...................................................... 402
12.4.1.1 Physical Architecture ............................................ 402 12.4.1.2 Information Architecture....................................... 403
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12.5 Smart Device-Adaptable Dermoscopes ............................................ 403 12.5.1 Color Reproduction.............................................................. 405 12.5.2 Image Area and Distortion .................................................. 405 12.5.3 Illumination ......................................................................... 407 12.5.4 Sharpness and Differential Structures.................................. 407
12.6 Final Remarks .................................................................................. 409 Acknowledgments ...................................................................................... 411 References .................................................................................................. 411
12.1 INTRODUCTION Skin cancer constitutes nowadays the most common malignancies in the Caucasian population, with incidences that are reaching epidemic proportions [1]. According to the American Cancer Society, one in every three cancers diagnosed is a skin cancer.
