PROBLEM TO BE SOLVED: To allow a polarization tomographic image (retardation image, or the like) of an analyte to be displayed on a monitor for easy viewing even if there is a polarization settlement region in the analyte.SOLUTION: An image processing device includes: image generation means which, based on a tomographic signal that is obtained from an analyte using optical interference, generates a polarization tomographic image representing polarization characteristics of the analyte； extracting means which extracts a polarization settlement region of the analyte on the basis of the tomographic signal； and display control means which makes a display means display a region on the polarization tomographic image corresponding to the polarization settlement region in such a manner as to be discriminated from other regions.SELECTED DRAWING: Figure 3【課題】 被検体に偏光解消領域が存在していても、被検体の偏光断層画像（リターデーション画像等）をモニタに見易く表示させること。【解決手段】 画像処理装置は、光干渉を用いて被検体から取得される断層信号に基づいて、被検体の偏光特性を示す偏光断層画像を生成する画像生成手段と、断層信号に基づいて、被検体の偏光解消領域を抽出する抽出手段と、偏光解消領域に対応する偏光断層画像上の領域を他の領域に対し識別可能に表示手段に表示させる表示制御手段と、を有する。【選択図】 図３
