fix pafnet reader (#3329)

configs/ttfnet/_base_/pafnet_lite_reader.yml

@@ -2,8 +2,7 @@ worker_num: 2
 TrainReader:
   sample_transforms:
     - Decode: {}
-    - Cutmix: {alpha: 1.5, beta: 1.5}
-    - RandomDistort: {}
+    - RandomDistort: {brightness: [-32., 32., 0.5], random_apply: False, random_channel: True}
     - RandomExpand: {fill_value: [123.675, 116.28, 103.53]}
     - RandomCrop: {aspect_ratio: NULL, cover_all_box: True}
     - RandomFlip: {}
@@ -18,7 +17,6 @@ TrainReader:
   shuffle: true
   drop_last: true
   use_shared_memory: true
-  cutmix_epoch: 200
 
 EvalReader:
   sample_transforms:

configs/ttfnet/_base_/pafnet_reader.yml

@@ -2,8 +2,7 @@ worker_num: 2
 TrainReader:
   sample_transforms:
   - Decode: {}
-  - Cutmix: {alpha: 1.5, beta: 1.5}
-  - RandomDistort: {random_apply: false, random_channel: true}
+  - RandomDistort: {brightness: [-32., 32., 0.5], random_apply: false, random_channel: true}
   - RandomExpand: {fill_value: [123.675, 116.28, 103.53]}
   - RandomCrop: {aspect_ratio: NULL, cover_all_box: True}
   - RandomFlip: {prob: 0.5}
@@ -17,7 +16,6 @@ TrainReader:
   shuffle: true
   drop_last: true
   use_shared_memory: true
-  mixup_epoch: 100
 
 EvalReader:
   sample_transforms: