{
  "id": 290603,
  "title": "color augmentation",
  "url": "/competitions/sartorius-cell-instance-segmentation/discussion/290603",
  "author_name": "",
  "post_date": "2021-11-25T12:43:24.340700500Z",
  "votes": 6,
  "comment_count": 6,
  "views": 0,
  "content": "<p>Can color augmentation works well in this problem?</p>",
  "messages": [
    {
      "id": "1595136",
      "postDate": "11/25/2021 12:43:24",
      "content": "<p>Can color augmentation works well in this problem?</p>",
      "rawMarkdown": "Can color augmentation works well in this problem?",
      "votes": null
    },
    {
      "id": "1595205",
      "postDate": "11/25/2021 13:34:32",
      "content": "<p>What do you mean by color augmentations? I use mild random brightness and contrast but it didn't help much. You can't change hue and saturation since images are grayscale.</p>",
      "rawMarkdown": "What do you mean by color augmentations? I use mild random brightness and contrast but it didn't help much. You can't change hue and saturation since images are grayscale.",
      "votes": null
    },
    {
      "id": "1595467",
      "postDate": "11/25/2021 17:48:05",
      "content": "<p>Me too，aug seems not working in this comp</p>",
      "rawMarkdown": "Me too，aug seems not working in this comp",
      "votes": null
    },
    {
      "id": "1595817",
      "postDate": "11/26/2021 02:35:51",
      "content": "<p>I've tried random brightness, but my score dropped.</p>",
      "rawMarkdown": "I've tried random brightness, but my score dropped.",
      "votes": null
    },
    {
      "id": "1596599",
      "postDate": "11/26/2021 16:58:16",
      "content": "<p>Color augmentation does not help. I use simple Flip augmentation</p>",
      "rawMarkdown": "Color augmentation does not help. I use simple Flip augmentation",
      "votes": null
    },
    {
      "id": "1597298",
      "postDate": "11/27/2021 12:08:16",
      "content": "<p>Hi <a href=\"https://www.kaggle.com/ptran1203\" target=\"_blank\">@ptran1203</a> detectron2 seems not supporting AugTrainer with bitmask as label, I tried polygon for training and bitmask for val, but this didn't work well, best val is just 0.16, could you tell me how you do aug?</p>",
      "rawMarkdown": "Hi @ptran1203 detectron2 seems not supporting AugTrainer with bitmask as label, I tried polygon for training and bitmask for val, but this didn't work well, best val is just 0.16, could you tell me how you do aug?",
      "votes": null
    },
    {
      "id": "1597616",
      "postDate": "11/27/2021 17:44:29",
      "content": "<p>I just use random flip and ResizeShortestEdge</p>",
      "rawMarkdown": "I just use random flip and ResizeShortestEdge",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1595205,
      "author_name": "gunesevitan",
      "author_url": "",
      "post_date": "11/25/2021 13:34:32",
      "content": "<p>What do you mean by color augmentations? I use mild random brightness and contrast but it didn't help much. You can't change hue and saturation since images are grayscale.</p>",
      "votes": null,
      "replies": [
        {
          "id": 1595467,
          "author_name": "manyuli",
          "author_url": "",
          "post_date": "11/25/2021 17:48:05",
          "content": "<p>Me too，aug seems not working in this comp</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1595817,
          "author_name": "fortelean",
          "author_url": "",
          "post_date": "11/26/2021 02:35:51",
          "content": "<p>I've tried random brightness, but my score dropped.</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 1596599,
      "author_name": "ptran1203",
      "author_url": "",
      "post_date": "11/26/2021 16:58:16",
      "content": "<p>Color augmentation does not help. I use simple Flip augmentation</p>",
      "votes": null,
      "replies": [
        {
          "id": 1597298,
          "author_name": "plugin1689",
          "author_url": "",
          "post_date": "11/27/2021 12:08:16",
          "content": "<p>Hi <a href=\"https://www.kaggle.com/ptran1203\" target=\"_blank\">@ptran1203</a> detectron2 seems not supporting AugTrainer with bitmask as label, I tried polygon for training and bitmask for val, but this didn't work well, best val is just 0.16, could you tell me how you do aug?</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1597616,
          "author_name": "ptran1203",
          "author_url": "",
          "post_date": "11/27/2021 17:44:29",
          "content": "<p>I just use random flip and ResizeShortestEdge</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1595136": "Can color augmentation works well in this problem?",
    "1595205": "What do you mean by color augmentations? I use mild random brightness and contrast but it didn't help much. You can't change hue and saturation since images are grayscale.",
    "1595467": "Me too，aug seems not working in this comp",
    "1595817": "I've tried random brightness, but my score dropped.",
    "1596599": "Color augmentation does not help. I use simple Flip augmentation",
    "1597298": "Hi @ptran1203 detectron2 seems not supporting AugTrainer with bitmask as label, I tried polygon for training and bitmask for val, but this didn't work well, best val is just 0.16, could you tell me how you do aug?",
    "1597616": "I just use random flip and ResizeShortestEdge"
  },
  "source": "meta"
}