{"collection":"grad-noise-175k","coord":"t19_x1_u4_b19","data":{"index":137997,"ordinal":"154332643","topo":"o2(x,o2(o1(x),x))","expression":"sub(P,min(cil(P),D))","image":"frame_expr-137997.png","measured":true,"step":132383,"globalStep":132383,"value_mean":0.4835260510444641,"value_positive_fraction":0.5625,"value_abs_mean":0.4835260510444641,"value_variance":0.23658131062984467,"value_stddev":0.48639625310897827,"value_min":0,"value_max":1,"value_range":1,"histogram_probability_sum":1,"histogram_entropy_bits":1.5459885597229004,"gradient_energy_x":0.000613975920714438,"gradient_energy_y":0,"gradient_magnitude_mean":0.0068968250416219234,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":1.6556847004522979e-9,"laplacian_energy":0.00010949073475785553,"laplacian_abs_mean":0.0030218162573873997,"gradient_magnitude_variance":0.0005663199117407203,"gradient_magnitude_stddev":0.023797476664185524,"gradient_magnitude_cv":3.4504971504211426,"gradient_magnitude_max":0.15291625261306763,"gradient_energy_over_variance":0.0025952004361897707,"laplacian_energy_over_variance":0.0004628038441296667,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.0015560430474579334,"scale_diff2_mid":0.015308354049921036,"scale_diff2_far":0.06668636202812195,"scale_diff2_near_over_variance":0.006577202118933201,"scale_diff2_mid_over_variance":0.06470652669668198,"scale_diff2_far_over_variance":0.28187504410743713,"value_histogram":[[[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0.46875,0.46875,0.46875],[0.0078125,0.0078125,0.0078125],[0.01171875,0.01171875,0.01171875],[0.01953125,0.01953125,0.01953125],[0.01171875,0.01171875,0.01171875],[0.00390625,0.00390625,0.00390625],[0,0,0],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0,0,0],[0.00390625,0.00390625,0.00390625],[0.01171875,0.01171875,0.01171875],[0.453125,0.453125,0.453125]]],"scale_curve":[[[0.015625,0.0015560430474579334,0.006577202118933201],[0.0625,0.015308354049921036,0.06470652669668198],[0.25,0.06668636202812195,0.28187504410743713]]]},"renderer":1,"first_seen":"2026-09-23T00:00:00.000Z","last_seen":"2026-09-23T00:00:00.000Z","sightings":[{"at":"2026-09-23T00:00:00.000Z","data":null}],"axes":"[\"19\",\"1\",\"4\",\"19\"]"}