Fig. 1. Nonuniformity model for infrared detectors

Fig. 2. Infrared nonuniformity image

Fig. 3. Mean filtering and guided filtering results

Fig. 4. Image edge feature extraction results of different algorithms

Fig. 5. Results filtered by different guided filters

Fig. 6. The overall flow chart of the proposed algorithm

Fig. 7. Correction results of the proposed algorithm and DLS-NUC algorithm

Fig. 8. Comparison of correction results between the proposed algorithm and NN-NUC，MEA-NUC，GIF-NUC algorithms

Fig. 9. RMSE curve of each algorithm

Fig. 10. Roughness curve of each algorithm