Blame for pp_params.json

{
 "defect_a": {
  "thr": 0.5,
  "comp_min": 100,
  "min_area": 0,
  "cls_thr": null
 },
 "defect_b": {
  "thr": 0.5,
  "comp_min": 300,
  "min_area": 0,
  "cls_thr": null
 },
 "defect_c": {
  "thr": 0.5,
  "comp_min": 0,
  "min_area": 200,
  "cls_thr": null
 },
 "defect_d": {
  "thr": 0.4,
  "comp_min": 600,
  "min_area": 0,
  "cls_thr": null
 }
}