{"collection":"grad-noise-175k","coord":"t20_x52_u0_b161","data":{"index":170129,"ordinal":"164513033","topo":"o2(x,o2(o2(x,x),x))","expression":"sub(D,div(eql(R,R),D))","image":"frame_expr-170129.png","measured":true,"step":69439,"globalStep":69439,"value_mean":-2.9802322387695312e-8,"value_positive_fraction":0.5,"value_abs_mean":0.9165371656417847,"value_variance":0.8888007402420044,"value_stddev":0.9427623152732849,"value_min":-1,"value_max":1,"value_range":2,"histogram_probability_sum":1,"histogram_entropy_bits":1.5435644388198853,"gradient_energy_x":0.3227715492248535,"gradient_energy_y":0,"gradient_magnitude_mean":0.24603164196014404,"gradient_axis_bias":1,"gradient_nonzero_flag":1,"laplacian_mean":0,"laplacian_energy":0.5327238440513611,"laplacian_abs_mean":0.32296785712242126,"gradient_magnitude_variance":0.26220372319221497,"gradient_magnitude_stddev":0.5120583176612854,"gradient_magnitude_cv":2.081270217895508,"gradient_magnitude_max":2,"gradient_energy_over_variance":0.36315399408340454,"laplacian_energy_over_variance":0.5993737578392029,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.38244739174842834,"scale_diff2_mid":1.7307051420211792,"scale_diff2_far":0,"scale_diff2_near_over_variance":0.43029600381851196,"scale_diff2_mid_over_variance":1.94723641872406,"scale_diff2_far_over_variance":0,"value_histogram":[[[0.4375,0.4375,0.4375],[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],[0.0625,0.0625,0.0625],[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],[0.0625,0.0625,0.0625],[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],[0.4375,0.4375,0.4375]]],"scale_curve":[[[0.015625,0.38244739174842834,0.43029600381851196],[0.0625,1.7307051420211792,1.94723641872406],[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\",\"52\",\"0\",\"161\"]"}