{"collection":"grad-noise-175k","coord":"t18_x52_u0_b12","data":{"index":130830,"ordinal":"148271682","topo":"o2(x,o2(x,o2(x,x)))","expression":"add(D,sub(R,sub(R,D)))","image":"frame_expr-130830.png","measured":true,"step":75047,"globalStep":75047,"value_mean":3.601599019020796e-10,"value_positive_fraction":0.5,"value_abs_mean":0.1887260377407074,"value_variance":0.04328864812850952,"value_stddev":0.20805923640727997,"value_min":-0.29083192348480225,"value_max":0.290831983089447,"value_range":0.5816639065742493,"histogram_probability_sum":1,"histogram_entropy_bits":2.9056389331817627,"gradient_energy_x":0.006529781501740217,"gradient_energy_y":3.3225922011330936e-18,"gradient_magnitude_mean":0.0721907690167427,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":-3.7309221684322935e-11,"laplacian_energy":0.0010251327184960246,"laplacian_abs_mean":0.029180873185396194,"gradient_magnitude_variance":0.0013214803766459227,"gradient_magnitude_stddev":0.03635217249393463,"gradient_magnitude_cv":0.5035570859909058,"gradient_magnitude_max":0.12383586168289185,"gradient_energy_over_variance":0.1508428156375885,"laplacian_energy_over_variance":0.02368132956326008,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.012604259885847569,"scale_diff2_mid":0.08733028918504715,"scale_diff2_far":1.2610180502935735e-16,"scale_diff2_near_over_variance":0.2911677956581116,"scale_diff2_mid_over_variance":2.017394781112671,"scale_diff2_far_over_variance":2.9130456202206044e-15,"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],[0.1875,0.1875,0.1875],[0.0625,0.0625,0.0625],[0.125,0.125,0.125],[0,0,0],[0.125,0.125,0.125],[0.125,0.125,0.125],[0,0,0],[0.125,0.125,0.125],[0.0625,0.0625,0.0625],[0.1875,0.1875,0.1875],[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]]],"scale_curve":[[[0.015625,0.012604259885847569,0.2911677956581116],[0.0625,0.08733028918504715,2.017394781112671],[0.25,1.2610180502935735e-16,2.9130456202206044e-15]]]},"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":"[\"18\",\"52\",\"0\",\"12\"]"}