Result summary table

method grain psnr
Distance-Based 15 39.1886
Shape-Graph G2 50 42.8921
Pre-order CLa*b* (MP) 300 40.6738
Pre-order CLa*b* (NC) 50 38.2036
Pre-order CLa*b* (Pmean) 300 40.8845
Order Lex 400 38.7768
Pre-order LHLS (MP) 500 41.1493
Pre-order LHLS (NC) 500 38.8313
Pre-order LHLS (Pmean) 200 41.5426
Pre-order LLa*b* (MP) 500 40.2240
Pre-order LLa*b* (NC) 4 37.7617
Pre-order LLa*b* (Pmean) 200 40.5326
Pre-order Brightness (MP) 500 42.0396
Pre-order Brightness (NC) 500 38.6327
Pre-order Brightness (Pmean) 500 42.6064

Tests images

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Original Image enlarge
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Image with noise corruption. enlarge

Result images

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Distance-Based on shades_ph-ulm with grain of size 15. PSNR = 39.1886.
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Shape-Graph G2 on shades_ph-ulm with grain of size 50. PSNR = 42.8921.
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Pre-order CLa*b* (MP) on shades_ph-ulm with grain of size 300. PSNR = 40.6738.
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Pre-order CLa*b* (NC) on shades_ph-ulm with grain of size 50. PSNR = 38.2036.
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Pre-order CLa*b* (Pmean) on shades_ph-ulm with grain of size 300. PSNR = 40.8845.
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Order Lex on shades_ph-ulm with grain of size 400. PSNR = 38.7768.
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Pre-order LHLS (MP) on shades_ph-ulm with grain of size 500. PSNR = 41.1493.
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Pre-order LHLS (NC) on shades_ph-ulm with grain of size 500. PSNR = 38.8313.
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Pre-order LHLS (Pmean) on shades_ph-ulm with grain of size 200. PSNR = 41.5426.
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Pre-order LLa*b* (MP) on shades_ph-ulm with grain of size 500. PSNR = 40.224.
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Pre-order LLa*b* (NC) on shades_ph-ulm with grain of size 4. PSNR = 37.7617.
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Pre-order LLa*b* (Pmean) on shades_ph-ulm with grain of size 200. PSNR = 40.5326.
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Pre-order Brightness (MP) on shades_ph-ulm with grain of size 500. PSNR = 42.0396.
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Pre-order Brightness (NC) on shades_ph-ulm with grain of size 500. PSNR = 38.6327.
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Pre-order Brightness (Pmean) on shades_ph-ulm with grain of size 500. PSNR = 42.6064.
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