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Table 2 The processing time of the proposed method

From: Restoration method of sootiness mural images based on dark channel prior and Retinex by bilateral filter



First step

Data preprocessing

Radiometric Correction

About 600 s


About 900 s

Inverse MNF

About 120 s

Second step

Sootiness Mural Image Produce

3.5 s

Third step

Preliminary Sootiness Removal

2.7 s

Fourth step

Fine Sootiness Removal

53.9 s