{
  "id": 168515,
  "title": "why using ycbcr is not recommended?",
  "url": "/competitions/alaska2-image-steganalysis/discussion/168515",
  "author_name": "",
  "post_date": "2020-07-21T01:09:16.289745600Z",
  "votes": 2,
  "comment_count": 1,
  "views": 0,
  "content": "<p>it is mentioned sometimes in the discussion that ycbcr is not recommended</p>\n\n<p>however, i got by better results by using efficientb3 on decompressed ycbcr (not converted from rgb).</p>\n\n<p>single model with TTA : 0.917/0.930 (private/public LB)\n2 models with ensemble: 0.919/0.932</p>\n\n<p>rgb from image reader results is slightly worse for me (less ~0.003). what is your experience?</p>",
  "messages": [
    {
      "id": "937370",
      "postDate": "07/21/2020 01:09:16",
      "content": "<p>it is mentioned sometimes in the discussion that ycbcr is not recommended</p>\n\n<p>however, i got by better results by using efficientb3 on decompressed ycbcr (not converted from rgb).</p>\n\n<p>single model with TTA : 0.917/0.930 (private/public LB)\n2 models with ensemble: 0.919/0.932</p>\n\n<p>rgb from image reader results is slightly worse for me (less ~0.003). what is your experience?</p>",
      "rawMarkdown": "it is mentioned sometimes in the discussion that ycbcr is not recommended\n\nhowever, i got by better results by using efficientb3 on decompressed ycbcr (not converted from rgb).\n\nsingle model with TTA : 0.917/0.930 (private/public LB)\n2 models with ensemble: 0.919/0.932\n\nrgb from image reader results is slightly worse for me (less ~0.003). what is your experience?",
      "votes": null
    },
    {
      "id": "937385",
      "postDate": "07/21/2020 01:30:23",
      "content": "<p>I think you are right. I used the YCbCr too.</p>",
      "rawMarkdown": "I think you are right. I used the YCbCr too.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 937385,
      "author_name": "wuliaokaola",
      "author_url": "",
      "post_date": "07/21/2020 01:30:23",
      "content": "<p>I think you are right. I used the YCbCr too.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "937370": "it is mentioned sometimes in the discussion that ycbcr is not recommended\n\nhowever, i got by better results by using efficientb3 on decompressed ycbcr (not converted from rgb).\n\nsingle model with TTA : 0.917/0.930 (private/public LB)\n2 models with ensemble: 0.919/0.932\n\nrgb from image reader results is slightly worse for me (less ~0.003). what is your experience?",
    "937385": "I think you are right. I used the YCbCr too."
  },
  "source": "meta"
}