Byted Las Image Resample

{
  "skill_name": "byted-las-image-resample",
  "evals": [
    {
      "id": 1,
      "prompt": "我有一张图片 https://example.com/sample.jpg，需要降采样到 1024x1024，并输出到 tos://bucket/output/。请给出 data.json 模板、lasutil process 命令，并说明结果里哪个字段是输出图像的 TOS 路径。",
      "expected_output": "给出 data.json、lasutil process 命令、说明返回 data.image_path 为输出路径。",
      "files": []
    },
    {
      "id": 2,
      "prompt": "我有一张 TOS 图片 tos://bucket/input/sample.jpg，需要降采样到 800x600，输出为 png 格式。请给出 data.json 模板（image_src_type、image_suffix 等）和 lasutil process 命令。",
      "expected_output": "包含 image_src_type=image_tos、image_suffix=.png、target_size=[800,600] 的示例，以及 lasutil process 命令。",
      "files": []
    },
    {
      "id": 3,
      "prompt": "我有一张本地图片 ./test.jpg，需要降低 DPI 到 72。请问应该如何使用 byted-las-image-resample，给出相关命令和参数配置。",
      "expected_output": "包含 las_sdk.file.upload 将本地图片上传到 TOS 的步骤，以及设置 image_src_type=image_tos 和对应 dpi 的 data.json 模板。",
      "files": []
    }
  ]
}

# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#!/bin/bash
# ==============================================================================
# 图片格式预检查
# Usage: scripts/check_format.sh <file_path>
# ==============================================================================

FILE_PATH="$1"

if [ -z "$FILE_PATH" ]; then
  echo "❌ 错误: 请提供文件路径"
  exit 1
fi

# 获取文件扩展名并转小写
EXT=$(echo "$FILE_PATH" | awk -F. '{print tolower($NF)}')

# 允许的图片格式
ALLOWED_FORMATS="jpg jpeg png bmp tiff tif webp"

if [[ " $ALLOWED_FORMATS " =~ " $EXT " ]]; then
  echo "✅ 格式检查通过: $EXT"
  exit 0
else
  echo "⚠️  警告: 文件扩展名 '$EXT' 不在推荐格式列表中"
  echo "   推荐格式: $ALLOWED_FORMATS"
  echo "   请确认输入格式正确"
  exit 1
fi

#!/bin/bash

# ==============================================================================
# LAS SDK & Skill 环境初始化与更新脚本
# 用法: source scripts/env_init.sh <operator_id>
# ==============================================================================

OPERATOR_ID=$1

if [ -z "$OPERATOR_ID" ]; then
  echo "❌ 错误: 必须提供 operator_id"
  return 1 2>/dev/null || exit 1
fi

# 1. 虚拟环境隔离
# Find project root dynamically, then check for .las_venv
# skill structure: <project_root>/skills/<skill>/scripts/env_init.sh
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "${SCRIPT_DIR}/../../.." && pwd)"

# 优先复用项目根目录的虚拟环境，不存在才创建新的
if [ -d "${PROJECT_ROOT}/.las_venv" ]; then
  source "${PROJECT_ROOT}/.las_venv/bin/activate"
elif [ ! -d ".las_venv" ]; then
  python3 -m venv .las_venv
  source .las_venv/bin/activate
else
  source .las_venv/bin/activate
fi

# 2. 获取远程 manifest
manifest_url="https://las-ai-cn-beijing-online.tos-cn-beijing.volces.com/operator_cards_serving/public/skills/sdk/manifest.json"
manifest=$(curl -sf "$manifest_url" || echo '{}')

# 3. 比较 SDK 版本并自动更新
local_ver=$(lasutil --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' || echo "0.0.0")
remote_ver=$(echo "$manifest" | jq -r '.sdk_version // "unknown"')

if [ "$local_ver" = "0.0.0" ] || [ "$local_ver" != "$remote_ver" ]; then
  echo "📦 SDK 更新: $local_ver → $remote_ver，正在安装..."
  pip install --quiet --upgrade https://las-ai-cn-beijing-online.tos-cn-beijing.volces.com/operator_cards_serving/public/skills/sdk/las_sdk-0.2.0-py3-none-any.whl
fi

# 4. 检查当前算子的参数变更
op_changes=$(echo "$manifest" | jq -r ".operators.${OPERATOR_ID}.changes_since // {} | to_entries[] | \"  自 \(.key) 起: \(.value[])\"" 2>/dev/null)
if [ -n "$op_changes" ]; then
  echo "⚠️ 算子 ${OPERATOR_ID} 有参数更新:"
  echo "$op_changes"
  echo "建议使用 find-skills 检索并更新此 skill 到最新版本。"
fi

# 5. 初始化工作目录
export LAS_WORKDIR=$(mktemp -d /tmp/las_work_XXXXXX)
echo "✅ 环境初始化完成，工作目录: $LAS_WORKDIR"

#!/bin/bash
# ==============================================================================
# 生成结果展示 markdown 模板，自动包含计费声明
# Usage: scripts/generate_result.md.sh <result_json> <estimated_price>
# ==============================================================================

RESULT_JSON="$1"
ESTIMATED_PRICE="$2"

if [ -z "$RESULT_JSON" ] || [ ! -f "$RESULT_JSON" ]; then
  echo "❌ 错误: 需要提供 result.json 文件路径"
  exit 1
fi

cat <<EOF
# 图片重采样结果

## 任务信息
- **算子**: \`las_image_resample\`
EOF

if [ -n "$ESTIMATED_PRICE" ]; then
cat <<EOF
- **预估计费**: ${ESTIMATED_PRICE} 元
EOF
fi

cat <<EOF

## 处理结果

EOF

cat "$RESULT_JSON" | jq -r '
.data | "
- **输入尺寸**: \(.original_width) × \(.original_height)
- **输出尺寸**: \(.output_width) × \(.output_height)
- **输出路径**: \`\(.output_path)\`
"'
EOF

cat <<'EOF'

---

本方式的计费均为预估计费，与实际费用有差距，实际费用以运行后火山产生的账单为准。计费说明请参考 [Volcengine LAS 定价](https://www.volcengine.com/docs/6492/1544808)。
EOF