Key Technologies of Steel Plate Surface Defect Detection System Based on Artificial Intelligence Machine Vision

Table 6

Analysis table based on the experimental results of image denoising.

Filtering algorithm	15% salt and pepper noise		30% salt and pepper noise		50% salt and pepper noise
	MSE	PSNR	MSE	PSNR	MSE	PSNR
Mean filter	46.276	32. 2271	31. 2271	33.3695	85.972	28. 5943
Gaussian filtering	42.873	36.1378	37.1738	37.2514	77.348	33. 1626
Median filter	29.274	49.2472	50.2427	45.3223	39.734	41.5851
Median filtering based on partial differentiation	18.396	56. 3471	57. 4317	45.2558	22.946	44.2432.