Abstract

In the non-destructive radiographic testing methods used for specimens with cultural heritage, analog film radiography is being replaced with digital radiography by the introduction of an imaging plate computed radiography system. Adoption of the computed radiography system has helped standardize digital image quality.</br>This study analyzed the X-ray transmission characteristics and evaluated image quality according to image developing time for iron, the most important metal in cultural heritage. Computed radiography images were acquired. The transmittance of the images was determined based on Gray Scale and Duplex-wire Image Quality Indicator data. In addition, the change in images with the image developing time was compared and analyzed using the Structural Similarity Index Measure, mean square error, and peak signal-to-noise ratio.

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