| Sumario: | • Radiography testing (RT) is an effective, non-invasive method for the detection of hidden structures and details of ancient ceramic objects. • The image processing methods are the efficient tool for maximizing of detail extraction from the radiographs. • The fast bilateral filter (FBF) is a fast image processing method that enhances visualization of the radiographs of ceramic objects. • Thanks to the FBF; the pathologies of the objects and the hidden morphologies of art pieces can be dimensioned much better in enhanced image. • Better visualization of the processed radiographs have been confirmed by the conservators and restaurateurs of cultural heritage. Radiography testing (RT) is an effective, non-invasive method for the detection of hidden structures, details and fracture regions of valuable ancient ceramic objects. To maximize detail extraction from the radiographs and to better interpret images, we use an efficient image processing method that reveals the design and defect regions of objects. For larger radiographic images, it is preferable that a desktop computer is capable of processing the algorithm. Algorithms that require a large memory size and CPU time necessitate the resizing of the images, resulting in lower quality output images. In this study, the fast bilateral filter (FBF) was implemented to enhance the visualization of the radiographs of ceramic objects from the archaeological museum of Burriana, Spain. The digital radiographs were provided by a computed radiography (CR) system at the Laboratory of Documentation and Registration in the University Institute for the Restoration of the Patrimony (IRP) of the Universitat Politècnica de València (UPV), Spain. The FBF method based on the Fourier series and the truncated Gaussian function was successfully implemented with radiographs of antique objects. The results show that the internal structures, manufacturing processes, and fractures are better visualized and the edges and fine details are preserved. The design details were shown to be better visualized than the original radiographs based on opinions and evaluations from experts in radiography and the conservation and restoration of cultural heritage.
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