Abstract:
This study investigated the influence of white balance setting of digital cameras on color differences of skin lesions, the effects of color adjustment with gray balance control and study the physician's diagnosis of color accuracy, color-corrected skin lesions image with gray balance control. The research procedure began with creating a color chart based on the X-Rite Color Checker Classic which used as a reference color. Then DSLR camera was used to capture the reference chart by setting the camera's white balance to Auto, Fluorescent, Daylight, Flash, and Custom respectively under three types of illuminate such as Fluorescent, Studio Flash, and Ring Flash. After that, the color differences were analyzed and compared.Next color within the images were adjusted by controlling the gray balance using the reference color patch, After that the color differences between before color adjusted and after color adjusted images were compared.The results showed that white balance setting in camera as auto gave the best result. When comparing the result of color adjustment by controlling gray balance, it was found that the mean color differences before color adjustment was 4.08 and after color adjustment was 3.67. Most of the dermatologists evaluated the accurate color reproduction of image by giving score 4.00 to the gray balance control image and 3.45 to the uncontrolled gray balance images.