Case Based Color Calibration of Wound Images for Monitoring Pressure Sore Healing

In this paper a case based calibration technique is proposed for monitoring and assessment of wound images. For development of the proposed approach digital color images were obtained from pressure sores, induced in guinea pigs. Wound images were calibrated with respect to the hue component of the healthy tissue of each case. Hue polar histograms were used for calibration. Images were reconstructed after calibration based on their new hue values. The calibrated images can be segmented by thresholding the hue values.