{"collection":"grad-noise-175k","coord":"t20_x40_u0_b151","data":{"index":167707,"ordinal":"164028211","topo":"o2(x,o2(o2(x,x),x))","expression":"sub(D,mlt(min(D,D),D))","image":"frame_expr-167707.png","measured":true,"step":50063,"globalStep":50063,"value_mean":-0.11903500556945801,"value_positive_fraction":0.3125,"value_abs_mean":0.1492512822151184,"value_variance":0.01888333633542061,"value_stddev":0.13741664588451385,"value_min":-0.30685123801231384,"value_max":0.081607386469841,"value_range":0.38845860958099365,"histogram_probability_sum":1,"histogram_entropy_bits":2.702819585800171,"gradient_energy_x":0.0028913712594658136,"gradient_energy_y":0,"gradient_magnitude_mean":0.04860702157020569,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":0.00024046999169513583,"laplacian_energy":0.00044941483065485954,"laplacian_abs_mean":0.018599174916744232,"gradient_magnitude_variance":0.0005292932619340718,"gradient_magnitude_stddev":0.023006374016404152,"gradient_magnitude_cv":0.4733137786388397,"gradient_magnitude_max":0.0781964659690857,"gradient_energy_over_variance":0.1531175971031189,"laplacian_energy_over_variance":0.02379954420030117,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.00557262497022748,"scale_diff2_mid":0.03777734190225601,"scale_diff2_far":0,"scale_diff2_near_over_variance":0.29510805010795593,"scale_diff2_mid_over_variance":2.0005648136138916,"scale_diff2_far_over_variance":0,"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],[0.25,0.25,0.25],[0.125,0.125,0.125],[0.125,0.125,0.125],[0.125,0.125,0.125],[0.0625,0.0625,0.0625],[0.1875,0.1875,0.1875],[0.125,0.125,0.125],[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]]],"scale_curve":[[[0.015625,0.00557262497022748,0.29510805010795593],[0.0625,0.03777734190225601,2.0005648136138916],[0.25,0,0]]]},"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":"[\"20\",\"40\",\"0\",\"151\"]"}