{"collection":"grad-noise-175k","coord":"t4_x3_u5_b3","data":{"index":559,"ordinal":"32604615","topo":"o1(o2(x,x))","expression":"sgn(div(D,P))","image":"frame_expr-000559.png","measured":true,"step":4479,"globalStep":4479,"value_mean":-0.0625,"value_positive_fraction":0.46875,"value_abs_mean":0.7083250880241394,"value_variance":0.5901384949684143,"value_stddev":0.7682046890258789,"value_min":-1,"value_max":0.9994179010391235,"value_range":1.9994179010391235,"histogram_probability_sum":1,"histogram_entropy_bits":3.3322582244873047,"gradient_energy_x":0.25903981924057007,"gradient_energy_y":0,"gradient_magnitude_mean":0.2376437485218048,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":-0.00035937203210778534,"laplacian_energy":0.48281702399253845,"laplacian_abs_mean":0.26548057794570923,"gradient_magnitude_variance":0.20245318114757538,"gradient_magnitude_stddev":0.4499479830265045,"gradient_magnitude_cv":1.8933717012405396,"gradient_magnitude_max":1.9994179010391235,"gradient_energy_over_variance":0.43894749879837036,"laplacian_energy_over_variance":0.8181418776512146,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0,"scale_diff2_mid":0,"scale_diff2_far":0.2795352041721344,"scale_diff2_near_over_variance":0,"scale_diff2_mid_over_variance":0,"scale_diff2_far_over_variance":0.47367730736732483,"value_histogram":[[[0.23828125,0.23828125,0.23828125],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0.05859375,0.05859375,0.05859375],[0,0,0],[0.17578125,0.17578125,0.17578125]]],"scale_curve":[[[0.015625,0,0],[0.0625,0,0],[0.25,0.2795352041721344,0.47367730736732483]]]},"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":"[\"4\",\"3\",\"5\",\"3\"]"}