ph_opt · complete experiment report

HDR + 2D native-ROI loss sweep

Twelve HDR scenes and DragonBunny under a shared 8-frame binary SLM protocol: native target dimensions, no target padding, learning rate 5×10⁻³, 300 optimization iterations, and hard-only reporting.

12 HDR + 1 2D10 losses300 iterations20-iter curve intervalCVVDP 0.6.0

HDR 12-scene mean

Final hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.950	27.84	0.6996	0.002166
L2 (amplitude)	8.872	25.91	0.6283	0.003052
Charbonnier	8.953	27.86	0.7004	0.002160
CVVDP direct	9.065	18.08	0.3759	0.020495
MDSI	5.666	13.49	0.2041	0.050764
HaarPSI	5.647	13.84	0.2221	0.048086
DISTS	5.367	13.77	0.1859	0.047293
TOPIQ-FR	5.255	13.19	0.1850	0.053919
CVVDP luma heatmap × Charbonnier	9.081	28.42	0.7088	0.002064
LPIPS-VGG (official)	5.608	13.76	0.3064	0.047746

DragonBunny 2D

Final hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.389	23.16	0.4227	0.004832
L2 (amplitude)	8.293	21.70	0.3658	0.006765
Charbonnier	8.390	23.16	0.4228	0.004830
CVVDP direct	8.506	18.05	0.2599	0.015661
MDSI	5.244	13.11	0.1423	0.048813
HaarPSI	5.659	13.57	0.1681	0.043981
DISTS	5.239	13.27	0.1427	0.047123
TOPIQ-FR	5.219	13.03	0.1487	0.049831
CVVDP luma heatmap × Charbonnier	8.537	23.67	0.4344	0.004298
LPIPS-VGG (official)	5.606	13.28	0.1578	0.046996

HDR · Native ROI · run 260722_205702

Anime2

Candidate − L2JOD +0.326PSNR +1.53SSIM +0.0678

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.098	27.70	0.7198	0.001698
L2 (amplitude)	8.448	26.18	0.6537	0.002411
Charbonnier	8.100	27.72	0.7209	0.001690
CVVDP direct	9.041	16.25	0.3010	0.023696
MDSI	5.789	12.46	0.1378	0.056763
HaarPSI	5.705	12.71	0.1458	0.053518
DISTS	5.450	12.79	0.1206	0.052568
TOPIQ-FR	5.312	12.14	0.1144	0.061135
CVVDP luma heatmap × Charbonnier	8.774	27.71	0.7215	0.001695
LPIPS-VGG (official)	5.849	12.66	0.2512	0.054161

Convergence

Hard metrics sampled every 20 iterations.

Anime2 convergence curves

Visual comparison

Switch every reconstruction together.

Anime2 target

TargetReference

Anime2 L1

L1Hard · 100

Anime2 L2 (amplitude)

L2 (amplitude)Hard · 100

Anime2 Charbonnier

CharbonnierHard · 100

Anime2 CVVDP direct

CVVDP directHard · 100

Anime2 MDSI

MDSIHard · 100

Anime2 HaarPSI

HaarPSIHard · 100

Anime2 DISTS

DISTSHard · 100

Anime2 TOPIQ-FR

TOPIQ-FRHard · 100

Anime2 CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Anime2 LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_205702

Bloom

Candidate − L2JOD +0.240PSNR +0.65SSIM +0.0438

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.080	22.23	0.6999	0.005984
L2 (amplitude)	8.873	21.54	0.6536	0.007009
Charbonnier	9.080	22.24	0.7005	0.005976
CVVDP direct	8.944	13.09	0.4136	0.049066
MDSI	5.333	10.94	0.1370	0.080606
HaarPSI	5.368	10.49	0.1068	0.089286
DISTS	5.038	11.10	0.1162	0.077698
TOPIQ-FR	4.953	10.58	0.1033	0.087522
CVVDP luma heatmap × Charbonnier	9.113	22.19	0.6974	0.006046
LPIPS-VGG (official)	5.586	11.40	0.3068	0.072502

Convergence

Hard metrics sampled every 20 iterations.

Bloom convergence curves

Visual comparison

Switch every reconstruction together.

Bloom target

TargetReference

Bloom L1

L1Hard · 100

Bloom L2 (amplitude)

L2 (amplitude)Hard · 100

Bloom Charbonnier

CharbonnierHard · 100

Bloom CVVDP direct

CVVDP directHard · 100

Bloom MDSI

MDSIHard · 100

Bloom HaarPSI

HaarPSIHard · 100

Bloom DISTS

DISTSHard · 100

Bloom TOPIQ-FR

TOPIQ-FRHard · 100

Bloom CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Bloom LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_211807

Castle

Candidate − L2JOD +0.224PSNR +1.65SSIM +0.0682

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.044	26.71	0.6975	0.002134
L2 (amplitude)	8.772	24.71	0.6018	0.003378
Charbonnier	9.049	26.73	0.6987	0.002124
CVVDP direct	8.801	14.45	0.2540	0.035868
MDSI	5.881	10.62	0.1334	0.086693
HaarPSI	5.671	10.99	0.1669	0.079529
DISTS	5.488	11.10	0.1100	0.077713
TOPIQ-FR	5.241	10.42	0.1097	0.090857
CVVDP luma heatmap × Charbonnier	8.996	26.36	0.6700	0.002313
LPIPS-VGG (official)	5.575	10.73	0.1753	0.084464

Convergence

Hard metrics sampled every 20 iterations.

Castle convergence curves

Visual comparison

Switch every reconstruction together.

Castle target

TargetReference

Castle L1

L1Hard · 100

Castle L2 (amplitude)

L2 (amplitude)Hard · 100

Castle Charbonnier

CharbonnierHard · 100

Castle CVVDP direct

CVVDP directHard · 100

Castle MDSI

MDSIHard · 100

Castle HaarPSI

HaarPSIHard · 100

Castle DISTS

DISTSHard · 100

Castle TOPIQ-FR

TOPIQ-FRHard · 100

Castle CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Castle LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_211805

Glade

Candidate − L2JOD +0.100PSNR +1.20SSIM +0.0494

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.831	24.06	0.6383	0.003928
L2 (amplitude)	8.745	22.88	0.5851	0.005147
Charbonnier	8.841	24.07	0.6388	0.003920
CVVDP direct	9.016	14.88	0.3443	0.032485
MDSI	5.562	11.66	0.1761	0.068162
HaarPSI	5.496	11.95	0.1970	0.063773
DISTS	5.333	11.96	0.1540	0.063619
TOPIQ-FR	5.184	11.54	0.1533	0.070078
CVVDP luma heatmap × Charbonnier	8.845	24.08	0.6345	0.003908
LPIPS-VGG (official)	5.570	11.93	0.3343	0.064178

Convergence

Hard metrics sampled every 20 iterations.

Glade convergence curves

Visual comparison

Switch every reconstruction together.

Glade target

TargetReference

Glade L1

L1Hard · 100

Glade L2 (amplitude)

L2 (amplitude)Hard · 100

Glade Charbonnier

CharbonnierHard · 100

Glade CVVDP direct

CVVDP directHard · 100

Glade MDSI

MDSIHard · 100

Glade HaarPSI

HaarPSIHard · 100

Glade DISTS

DISTSHard · 100

Glade TOPIQ-FR

TOPIQ-FRHard · 100

Glade CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Glade LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_213911

Lounge

Candidate − L2JOD +0.365PSNR +5.40SSIM +0.1233

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.330	31.92	0.8056	0.000642
L2 (amplitude)	9.106	28.11	0.7170	0.001545
Charbonnier	9.332	31.96	0.8069	0.000636
CVVDP direct	9.332	21.55	0.4990	0.007002
MDSI	5.973	17.19	0.3581	0.019111
HaarPSI	5.920	17.54	0.4180	0.017612
DISTS	5.724	17.54	0.3391	0.017610
TOPIQ-FR	5.609	16.87	0.3469	0.020566
CVVDP luma heatmap × Charbonnier	9.471	33.51	0.8403	0.000445
LPIPS-VGG (official)	6.003	17.50	0.4612	0.017787

Convergence

Hard metrics sampled every 20 iterations.

Lounge convergence curves

Visual comparison

Switch every reconstruction together.

Lounge target

TargetReference

Lounge L1

L1Hard · 100

Lounge L2 (amplitude)

L2 (amplitude)Hard · 100

Lounge Charbonnier

CharbonnierHard · 100

Lounge CVVDP direct

CVVDP directHard · 100

Lounge MDSI

MDSIHard · 100

Lounge HaarPSI

HaarPSIHard · 100

Lounge DISTS

DISTSHard · 100

Lounge TOPIQ-FR

TOPIQ-FRHard · 100

Lounge CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Lounge LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_213909

Meridian

Candidate − L2JOD +0.244PSNR +2.26SSIM +0.0771

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.227	29.73	0.7498	0.001064
L2 (amplitude)	9.058	27.90	0.6815	0.001621
Charbonnier	9.227	29.76	0.7505	0.001058
CVVDP direct	9.159	19.97	0.3226	0.010066
MDSI	5.623	14.25	0.1805	0.037559
HaarPSI	5.466	14.88	0.1845	0.032480
DISTS	5.351	14.66	0.1588	0.034175
TOPIQ-FR	5.193	13.89	0.1612	0.040842
CVVDP luma heatmap × Charbonnier	9.302	30.16	0.7586	0.000963
LPIPS-VGG (official)	5.568	14.55	0.3159	0.035110

Convergence

Hard metrics sampled every 20 iterations.

Meridian convergence curves

Visual comparison

Switch every reconstruction together.

Meridian target

TargetReference

Meridian L1

L1Hard · 100

Meridian L2 (amplitude)

L2 (amplitude)Hard · 100

Meridian Charbonnier

CharbonnierHard · 100

Meridian CVVDP direct

CVVDP directHard · 100

Meridian MDSI

MDSIHard · 100

Meridian HaarPSI

HaarPSIHard · 100

Meridian DISTS

DISTSHard · 100

Meridian TOPIQ-FR

TOPIQ-FRHard · 100

Meridian CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Meridian LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_220019

Rushmore

Candidate − L2JOD -0.128PSNR +1.52SSIM +0.0675

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.667	26.52	0.6475	0.002228
L2 (amplitude)	8.819	25.34	0.5825	0.002924
Charbonnier	8.667	26.53	0.6482	0.002221
CVVDP direct	8.893	15.70	0.3127	0.026893
MDSI	6.251	12.72	0.2168	0.053405
HaarPSI	5.867	13.06	0.2488	0.049414
DISTS	5.830	12.99	0.1836	0.050212
TOPIQ-FR	5.733	12.73	0.1979	0.053311
CVVDP luma heatmap × Charbonnier	8.691	26.86	0.6500	0.002063
LPIPS-VGG (official)	5.996	12.84	0.2506	0.052057

Convergence

Hard metrics sampled every 20 iterations.

Rushmore convergence curves

Visual comparison

Switch every reconstruction together.

Rushmore target

TargetReference

Rushmore L1

L1Hard · 100

Rushmore L2 (amplitude)

L2 (amplitude)Hard · 100

Rushmore Charbonnier

CharbonnierHard · 100

Rushmore CVVDP direct

CVVDP directHard · 100

Rushmore MDSI

MDSIHard · 100

Rushmore HaarPSI

HaarPSIHard · 100

Rushmore DISTS

DISTSHard · 100

Rushmore TOPIQ-FR

TOPIQ-FRHard · 100

Rushmore CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Rushmore LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_220012

Showgirl

Candidate − L2JOD +0.348PSNR +3.96SSIM +0.1242

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.822	28.12	0.6270	0.001541
L2 (amplitude)	8.823	26.08	0.5375	0.002464
Charbonnier	8.824	28.14	0.6275	0.001536
CVVDP direct	9.133	21.62	0.3740	0.006882
MDSI	5.459	15.17	0.2114	0.030418
HaarPSI	5.616	15.76	0.2346	0.026559
DISTS	5.286	15.46	0.1993	0.028423
TOPIQ-FR	5.205	14.98	0.2046	0.031736
CVVDP luma heatmap × Charbonnier	9.171	30.04	0.6617	0.000990
LPIPS-VGG (official)	5.428	15.47	0.2865	0.028386

Convergence

Hard metrics sampled every 20 iterations.

Showgirl convergence curves

Visual comparison

Switch every reconstruction together.

Showgirl target

TargetReference

Showgirl L1

L1Hard · 100

Showgirl L2 (amplitude)

L2 (amplitude)Hard · 100

Showgirl Charbonnier

CharbonnierHard · 100

Showgirl CVVDP direct

CVVDP directHard · 100

Showgirl MDSI

MDSIHard · 100

Showgirl HaarPSI

HaarPSIHard · 100

Showgirl DISTS

DISTSHard · 100

Showgirl TOPIQ-FR

TOPIQ-FRHard · 100

Showgirl CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Showgirl LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_222128

Snow

Candidate − L2JOD +0.206PSNR +2.53SSIM +0.0678

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.469	34.14	0.8815	0.000385
L2 (amplitude)	9.296	31.80	0.8193	0.000661
Charbonnier	9.475	34.19	0.8825	0.000381
CVVDP direct	9.259	23.12	0.5281	0.004872
MDSI	5.416	15.39	0.2087	0.028920
HaarPSI	5.464	15.58	0.2364	0.027663
DISTS	5.253	16.09	0.2053	0.024586
TOPIQ-FR	5.137	14.96	0.1859	0.031898
CVVDP luma heatmap × Charbonnier	9.502	34.33	0.8871	0.000369
LPIPS-VGG (official)	5.464	16.22	0.4084	0.023859

Convergence

Hard metrics sampled every 20 iterations.

Snow convergence curves

Visual comparison

Switch every reconstruction together.

Snow target

TargetReference

Snow L1

L1Hard · 100

Snow L2 (amplitude)

L2 (amplitude)Hard · 100

Snow Charbonnier

CharbonnierHard · 100

Snow CVVDP direct

CVVDP directHard · 100

Snow MDSI

MDSIHard · 100

Snow HaarPSI

HaarPSIHard · 100

Snow DISTS

DISTSHard · 100

Snow TOPIQ-FR

TOPIQ-FRHard · 100

Snow CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Snow LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_222119

Toys

Candidate − L2JOD +0.327PSNR +6.40SSIM +0.1713

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.179	31.76	0.7500	0.000667
L2 (amplitude)	9.083	28.08	0.6451	0.001555
Charbonnier	9.182	31.77	0.7505	0.000665
CVVDP direct	9.379	22.59	0.5452	0.005507
MDSI	5.720	17.71	0.4081	0.016937
HaarPSI	6.275	18.88	0.4187	0.012930
DISTS	5.119	17.22	0.3865	0.018976
TOPIQ-FR	5.137	16.76	0.3918	0.021073
CVVDP luma heatmap × Charbonnier	9.410	34.48	0.8164	0.000357
LPIPS-VGG (official)	5.413	17.48	0.4399	0.017874

Convergence

Hard metrics sampled every 20 iterations.

Toys convergence curves

Visual comparison

Switch every reconstruction together.

Toys target

TargetReference

Toys L1

L1Hard · 100

Toys L2 (amplitude)

L2 (amplitude)Hard · 100

Toys Charbonnier

CharbonnierHard · 100

Toys CVVDP direct

CVVDP directHard · 100

Toys MDSI

MDSIHard · 100

Toys HaarPSI

HaarPSIHard · 100

Toys DISTS

DISTSHard · 100

Toys TOPIQ-FR

TOPIQ-FRHard · 100

Toys CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Toys LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_224233

Type

Candidate − L2JOD +0.013PSNR +1.45SSIM +0.0353

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.470	24.36	0.4366	0.003661
L2 (amplitude)	8.486	23.08	0.3966	0.004922
Charbonnier	8.471	24.37	0.4369	0.003658
CVVDP direct	8.824	18.27	0.2938	0.014900
MDSI	5.337	12.54	0.1496	0.055665
HaarPSI	5.446	12.95	0.1755	0.050654
DISTS	5.163	12.74	0.1417	0.053222
TOPIQ-FR	5.152	12.48	0.1446	0.056474
CVVDP luma heatmap × Charbonnier	8.499	24.53	0.4319	0.003523
LPIPS-VGG (official)	5.293	12.81	0.1939	0.052328

Convergence

Hard metrics sampled every 20 iterations.

Type convergence curves

Visual comparison

Switch every reconstruction together.

Type target

TargetReference

Type L1

L1Hard · 100

Type L2 (amplitude)

L2 (amplitude)Hard · 100

Type Charbonnier

CharbonnierHard · 100

Type CVVDP direct

CVVDP directHard · 100

Type MDSI

MDSIHard · 100

Type HaarPSI

HaarPSIHard · 100

Type DISTS

DISTSHard · 100

Type TOPIQ-FR

TOPIQ-FRHard · 100

Type CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Type LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

HDR · Native ROI · run 260722_224232

Water

Candidate − L2JOD +0.246PSNR +1.54SSIM +0.0696

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	9.182	26.86	0.7422	0.002061
L2 (amplitude)	8.952	25.25	0.6663	0.002984
Charbonnier	9.190	26.87	0.7431	0.002054
CVVDP direct	8.998	15.42	0.3220	0.028705
MDSI	5.649	11.25	0.1315	0.074930
HaarPSI	5.470	11.33	0.1324	0.073608
DISTS	5.371	11.63	0.1155	0.068715
TOPIQ-FR	5.205	10.89	0.1064	0.081534
CVVDP luma heatmap × Charbonnier	9.198	26.79	0.7359	0.002093
LPIPS-VGG (official)	5.546	11.53	0.2522	0.070252

Convergence

Hard metrics sampled every 20 iterations.

Water convergence curves

Visual comparison

Switch every reconstruction together.

Water target

TargetReference

Water L1

L1Hard · 100

Water L2 (amplitude)

L2 (amplitude)Hard · 100

Water Charbonnier

CharbonnierHard · 100

Water CVVDP direct

CVVDP directHard · 100

Water MDSI

MDSIHard · 100

Water HaarPSI

HaarPSIHard · 100

Water DISTS

DISTSHard · 100

Water TOPIQ-FR

TOPIQ-FRHard · 100

Water CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

Water LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100

2D SDR · Native ROI · run DragonBunny

DragonBunny

Candidate − L2JOD +0.244PSNR +1.97SSIM +0.0686

Final metrics

Hard-binarized reconstruction at iteration 300.

Loss	JOD ↑	PSNR ↑	SSIM ↑	L2 ↓
L1	8.389	23.16	0.4227	0.004832
L2 (amplitude)	8.293	21.70	0.3658	0.006765
Charbonnier	8.390	23.16	0.4228	0.004830
CVVDP direct	8.506	18.05	0.2599	0.015661
MDSI	5.244	13.11	0.1423	0.048813
HaarPSI	5.659	13.57	0.1681	0.043981
DISTS	5.239	13.27	0.1427	0.047123
TOPIQ-FR	5.219	13.03	0.1487	0.049831
CVVDP luma heatmap × Charbonnier	8.537	23.67	0.4344	0.004298
LPIPS-VGG (official)	5.606	13.28	0.1578	0.046996

Convergence

Hard metrics sampled every 20 iterations.

DragonBunny convergence curves

Visual comparison

Switch every reconstruction together.

DragonBunny target

TargetReference

DragonBunny L1

L1Hard · 100

DragonBunny L2 (amplitude)

L2 (amplitude)Hard · 100

DragonBunny Charbonnier

CharbonnierHard · 100

DragonBunny CVVDP direct

CVVDP directHard · 100

DragonBunny MDSI

MDSIHard · 100

DragonBunny HaarPSI

HaarPSIHard · 100

DragonBunny DISTS

DISTSHard · 100

DragonBunny TOPIQ-FR

TOPIQ-FRHard · 100

DragonBunny CVVDP luma heatmap × Charbonnier

CVVDP luma heatmap × CharbonnierHard · 100

DragonBunny LPIPS-VGG (official)

LPIPS-VGG (official)Hard · 100