{"collection":"grad-noise-175k","coord":"t4_x3_u1_b1","data":{"index":513,"ordinal":"32603809","topo":"o1(o2(x,x))","expression":"log(sub(D,P))","image":"frame_expr-000513.png","measured":true,"step":4111,"globalStep":4111,"value_mean":-0.18448585271835327,"value_positive_fraction":0.41015625,"value_abs_mean":0.945960283279419,"value_variance":0.8950618505477905,"value_stddev":0.9460771083831787,"value_min":-1,"value_max":1,"value_range":2,"histogram_probability_sum":1,"histogram_entropy_bits":1.6658813953399658,"gradient_energy_x":0.004179435782134533,"gradient_energy_y":0,"gradient_magnitude_mean":0.009576458483934402,"gradient_axis_bias":0.9999999403953552,"gradient_nonzero_flag":1,"laplacian_mean":-1.6556847004522979e-9,"laplacian_energy":0.007968945428729057,"laplacian_abs_mean":0.00994202308356762,"gradient_magnitude_variance":0.004087555687874556,"gradient_magnitude_stddev":0.06393399089574814,"gradient_magnitude_cv":6.676162242889404,"gradient_magnitude_max":0.9685772657394409,"gradient_energy_over_variance":0.004669438116252422,"laplacian_energy_over_variance":0.008903234265744686,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0,"scale_diff2_mid":0,"scale_diff2_far":0.005801734514534473,"scale_diff2_near_over_variance":0,"scale_diff2_mid_over_variance":0,"scale_diff2_far_over_variance":0.0064819371327757835,"value_histogram":[[[0.5625,0.5625,0.5625],[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],[0.01171875,0.01171875,0.01171875],[0.0078125,0.0078125,0.0078125],[0.0078125,0.0078125,0.0078125],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.00390625,0.00390625,0.00390625],[0,0,0],[0.02734375,0.02734375,0.02734375],[0.015625,0.015625,0.015625],[0.00390625,0.00390625,0.00390625],[0.00390625,0.00390625,0.00390625],[0.00390625,0.00390625,0.00390625],[0.3359375,0.3359375,0.3359375]]],"scale_curve":[[[0.015625,0,0],[0.0625,0,0],[0.25,0.005801734514534473,0.0064819371327757835]]]},"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\",\"1\",\"1\"]"}