PROBLEM TO BE SOLVED: To provide a device for generating a two-dimensional image without any quality degradation, and to provide a method and program.SOLUTION: An image formation device includes: reconfiguration means for reconfiguring a tomogram image in a prescribed range of a measuring object based on interference light generated by causing return light of measuring light returned from the measuring object to interfere with reference light； and generation means for generating a two-dimensional image with a pixel value selected based on descending order of pixel values for each pixel value row in a depth direction of the tomographic image.SELECTED DRAWING: Figure 3【課題】二次元画像の品質を劣化させずに生成することを目的とする装置、方法、プログラムを提供する。【解決手段】測定光の被測定物体からの戻り光と参照光とを干渉させた干渉光に基づいて被測定物体の所定範囲の断層像を再構成する再構成手段と、断層画像の深さ方向のそれぞれの画素値列毎に、画素値の大きさの順に基づき選択された画素値で二次元画像を生成する生成手段と、を備える。【選択図】図３
