{"collection":"grad-noise-175k","coord":"t1_x1_u5_b0","data":{"index":15,"ordinal":"8162007","topo":"o1(x)","expression":"sgn(D)","image":"frame_expr-000015.png","measured":true,"step":127,"globalStep":127,"value_mean":-1.8189894035458565e-12,"value_positive_fraction":0.5,"value_abs_mean":0.6888777613639832,"value_variance":0.5670750141143799,"value_stddev":0.7530438303947449,"value_min":-0.9994179010391235,"value_max":0.9994179010391235,"value_range":1.998835802078247,"histogram_probability_sum":1,"histogram_entropy_bits":3.4056389331817627,"gradient_energy_x":0.2604334354400635,"gradient_energy_y":0,"gradient_magnitude_mean":0.24556858837604523,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":0,"laplacian_energy":0.483284056186676,"laplacian_abs_mean":0.2673324942588806,"gradient_magnitude_variance":0.20004425942897797,"gradient_magnitude_stddev":0.44726306200027466,"gradient_magnitude_cv":1.8213366270065308,"gradient_magnitude_max":1.998835802078247,"gradient_energy_over_variance":0.45925745368003845,"laplacian_energy_over_variance":0.8522400856018066,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0,"scale_diff2_mid":0,"scale_diff2_far":0.2829229235649109,"scale_diff2_near_over_variance":0,"scale_diff2_mid_over_variance":0,"scale_diff2_far_over_variance":0.4989162087440491,"value_histogram":[[[0.1875,0.1875,0.1875],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0.0625,0.0625,0.0625],[0,0,0],[0.1875,0.1875,0.1875]]],"scale_curve":[[[0.015625,0,0],[0.0625,0,0],[0.25,0.2829229235649109,0.4989162087440491]]]},"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":"[\"1\",\"1\",\"5\",\"0\"]"}