{"chunk_id": "nas-sk:a91db8101724:e1903831:0001:83aacdbe54c8c0c5", "chunk_seq": 1, "created_at": "2026-05-18T11:18:24+08:00", "heading": "", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "---\ntitle: 商品透明PNG绿幕抠图SOP\ncategory: 内容设计与创意生产/电商主图设计\ntags: [\"商品抠图\", \"透明PNG\", \"绿幕\", \"电商素材\", \"质检\"]\nsource: Hermes 多 profile 候选汇总，经 meow-chan 复核后提交三人审批\ncreated_at: 2026-05-18\nvisibility: studio-internal\nsafety: 不含密钥、token、cookie、AppSecret、私聊原文、个人完整流水或动态项目待办\n---", "title": "商品透明PNG绿幕抠图SOP"}
{"chunk_id": "nas-sk:a91db8101724:e1903831:0002:6308c8558742f130", "chunk_seq": 2, "created_at": "2026-05-18T11:18:24+08:00", "heading": "商品透明PNG绿幕抠图SOP", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "# 商品透明PNG绿幕抠图SOP", "title": "商品透明PNG绿幕抠图SOP"}
{"chunk_id": "nas-sk:a91db8101724:e1903831:0003:1e0a12eeed562cb1", "chunk_seq": 3, "created_at": "2026-05-18T11:18:24+08:00", "heading": "适用场景", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "## 适用场景\n\n用于复杂背景商品图需要生成透明 PNG、换背景、主图素材包或详情页可复用商品素材的任务。", "title": "商品透明PNG绿幕抠图SOP"}
{"chunk_id": "nas-sk:a91db8101724:e1903831:0004:9cfe8675917a9c4c", "chunk_seq": 4, "created_at": "2026-05-18T11:18:24+08:00", "heading": "推荐两段式流程", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "## 推荐两段式流程\n\n1. 基于真实原图做图片编辑，只把复杂背景替换成均匀纯绿色绿幕，明确要求保留商品比例、轮廓、材质、纹样、标签、挂绳、透明包装等事实。\n2. 使用本地确定性脚本只对绿幕背景做 chroma key，生成真正 RGBA 透明 PNG。\n3. 同时输出绿幕图、透明 PNG、棋盘格预览、白底预览，便于人工复核。", "title": "商品透明PNG绿幕抠图SOP"}
{"chunk_id": "nas-sk:a91db8101724:e1903831:0005:ca0e18e7ddd119bf", "chunk_seq": 5, "created_at": "2026-05-18T11:18:24+08:00", "heading": "不推荐做法", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "## 不推荐做法\n\n不要直接从复杂原拍摄背景用阈值、连通域、硬分割或过度羽化脚本抠商品主体；这通常会丢失边缘、透明包装、挂绳和细节。", "title": "商品透明PNG绿幕抠图SOP"}
{"chunk_id": "nas-sk:a91db8101724:e1903831:0006:ce95df010dc89e33", "chunk_seq": 6, "created_at": "2026-05-18T11:18:24+08:00", "heading": "验收清单", "source_mtime": 1779071034, "source_path": "/Users/bot1/Volumes/root_for_ai/00_共享区/共享知识库/原始资料/03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_rel": "03_内容设计与创意生产/03_电商主图设计/商品透明PNG绿幕抠图SOP.md", "source_sha256": "a91db81017240e64fb54d0bc9012725c51c3c08dc0cde6e95d60685d8dfc95ed", "text": "## 验收清单\n\n- PNG 有 alpha 通道，透明区域确实为 0 alpha。\n- 商品主体比例、款式、纹样、标签、挂绳、包装没有被 AI 改写。\n- 边缘没有明显绿边、残影、锯齿或缺口。\n- 白底和棋盘格预览均可用。\n- 高严格商用场景保留人工/PS精修兜底。", "title": "商品透明PNG绿幕抠图SOP"}