Figure 1.
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Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Figure 22.

![Example faces from the ORL database [10]](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/67f10cc08d1bec042eac800c/j_jamris-2025-007_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKGUPTATHV%2F20251218%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20251218T012954Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjELz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDGV1LWNlbnRyYWwtMSJIMEYCIQDxk0oCRH8taLLND9o2jDHOnBQLxddA92nV0lazXfT9CQIhAJ7989B3%2BmoBvo0Al52dk0uWhijRXWhaBvzkwr6K52FLKsUFCIX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMOTYzMTM0Mjg5OTQwIgz54fIUniYG1isJquoqmQV5jzRI19LNvIyRp6dlEUdIMwgA9xxPvUe6rwX%2FpYFcT99TyDEFjQwFiIJ%2FbGRrX5itYfFXuvq8ZKLZmKkL%2BRc6fwv0pm12n%2FFD6omkAdl74%2BYdS70Qks9YPk9Esr3phFNcJedN15OiTQ0C0Pbf94dB5L%2Fil9V0mqrp1BvfE7c%2B%2Fn11xGPJUPxYMAvKkQWO%2BX63bGMSuqC8PliF2w6Kea%2BMQOyUVbo2tzFYu579HWla%2BBAlQc0aHrmFlp4xsOL3m9xxvZvHCuH5cnlDOGHnv%2FvdEpmAULhMF1rQ6GgLy7YGW0c1lKPP%2FJq4hoet%2FYwld8jTBfQTMB2wUWJtlPe2g%2FHzuyEpX%2FlxY8n1nefpEUUMdH6hpIla149w7MYiTGBOT8zUduyYlokWT7eSwDieBs9hCsHgQ2Qz5kNHojCvSDfUfQ7%2F98x%2BkN%2BC0utXAm3jJ95Zc3ObzNSXrHJcgBamOFGuI32QGif%2BAYv1lT%2B3RWoHVXxLxr7y1ItrT12RCxZrpGk%2FyYgc2Yiex9a9CyrT31c1Ce6c5XqYgWw2sgdZNr6Mo30T3rdeCtRr8476ttu%2BMBfYlQiV5%2BuZF%2B10tjCh%2FtPF4mozHtOtlQw1FY6mN6pOPy7tUdYGS7P2kjT4bVvqmdwqcWDP5fSp5Oas5fHuwDmYfEFQvKz%2By7uTpVGxxjC8%2FalzfpVz41wTxIFEMFjK62LtxnlU8AAJOEgb%2FEzx9G6ixn0ayxuzKWlKSuF2PEOvFj4KvAqRsX%2FpAGgdARksrIdg%2B9hNFb%2BOe4R8WCUIQRq%2Fz1s7NpY%2BIW0weLPeIRe%2BdrqvONGz9ClMOGdXV4HkyQCIwos0bZqy9d%2Fdwift3efb94%2FqVN8e%2FUXpOr0a8stI4AAdUCD8oHm3LzCOjozKBjqwAZF0Tb7lQ4JWzFhf048JPh%2FUhzDqNHSUoXLemCSJbaWmK6tNFPXUV8tQY3BB43lxTo%2FTkxLn99gEwrCJXiDKd7g%2BO4dyyVnxyGAMgUi8TM81nolO5h8%2Bxyyv%2B3eH7eHqacgfqDiRG1QkWAgnxEddw9R8GsOKPTNs3elFlUTt87FCaWbeq6QP%2BG%2FAoh3Q9quwXC1tsvhmhfWpmFbBv0K8Vr05E%2Bx1yynaE98JXzNrbLOL&X-Amz-Signature=69b262196f2566f3bf8724e2f465ed0d8f863c6d4f072a9f0ee3e87ee6638af9&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)





















© 2025 Wojciech Domski, Adam Jankowiak, published by Łukasiewicz Research Network – Industrial Research Institute for Automation and Measurements PIAP
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