Abstract
Color changes seen at endoscopy are important for gastrointestinal endoscopic diagnosis. Quantification of the color information is useful for a scientific assessment of endoscopic color images. Since hemoglobin is the predominant pigment in the gastrointestinal mucosa, measurement of the hemoglobin content is a reasonable method for quantifying the color in gastrointestinal endoscopic images. Recently, Tsuji et al. have developed a technique for measuring mucosal hemoglobin content using electronic endoscopic imaging data [1]. The measure is called the “index of hemoglobin” (IHb). In this article, we describe the clinical applications and the usefulness of the technique. Currently, the technique is being used for two main purposes: image analysis and image processing, as shown in Table [1].
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