We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Correspondence |

Visualization Method Based on Digital Image Analysis Reveals Photodamage of the Skin

Andreas Blum, MD; Barbara Vollert, MD; Bettina Schlagenhauff, MD
Arch Dermatol. 2004;140(9):1173-1174. doi:10.1001/archderm.140.9.1173.
Text Size: A A A
Published online


Absorption of UV light by melanin can be used to visualize damage in the skin pigmentation, especially in the white population with skin types I through III.14 Therefore, UV photography is excellent for visualizing even distinct skin pigmentation as well as for educating patients. New systems using visible and UV light are currently available. A recently developed image analysis software approach requires only photographs taken with a standard digital camera (Figure 1). The software, which is based on local contrast enhancement methods using the shorter wavelengths of visible light, can generate a monochrome image within a few seconds (Figure 2). The resulting printout or screen image can be discussed immediately with the patient: "One picture is worth a thousand words."5 Ultraviolet photography can also be used in evaluating the progress of patients during treatment as well as in educating individuals about how to prevent overexposure to UV light.

Figures in this Article



Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview


Place holder to copy figure label and caption
Figure 1.

Photograph of a 33-year-old woman with Fitzpatrick skin type II taken with a digital camera.

Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.

Alterations in skin pigmentation, which were nearly invisible in Figure 1, are clearly visible in the analyzed image.

Graphic Jump Location




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

1 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Collections
PubMed Articles