扩图

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        "type": "string",
        "description": "参考图片\n支持传入图片Base64编码或图片URL（确保可访问）"
      },
      "up_expansion_ratio": {
        "type": "number",
        "description": "向上扩充范围；基于原图高度的倍数而计算\n取值范围：[0,2]，新图片整体面积不得超过原图片3倍\n如原图高20，当前参数值为0.1，则：\n原图顶边距离新图顶边为20 x 0.1 = 2，区域内均为扩图范围"
      },
      "down_expansion_ratio": {
        "type": "number",
        "description": "向下扩充范围；基于原图高度的倍数而计算\n取值范围：[0,2]，新图片整体面积不得超过原图片3倍\n如原图高20，当前参数值为0.2，则：\n原图底边距离新图底边为20 x 0.2 = 4，区域内均为扩图范围"
      },
      "left_expansion_ratio": {
        "type": "number",
        "description": "向左扩充范围；基于原图宽度的倍数而计算\n取值范围：[0,2]，新图片整体面积不得超过原图片3倍\n如原图宽30，当前参数值为0.3，则：\n原图左边距离新图左边为30 x 0.3 = 9，区域内均为扩图范围"
      },
      "right_expansion_ratio": {
        "type": "number",
        "description": "向右扩充范围；基于原图宽度的倍数而计算\n取值范围：[0,2]，新图片整体面积不得超过原图片3倍\n如原图宽30，当前参数值为0.4，则：\n原图右边距离新图右边为30 x 0.4 = 12，区域内均为扩图范围"
      },
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        "type": "string",
        "description": "正向文本提示词\n不能超过2500个字符"
      },
      "n": {
        "type": "integer",
        "description": "生成图片数量\n取值范围：[1,9]"
      },
      "callback_url": {
        "type": "string"
      },
      "external_task_id": {
        "type": "string"
      }
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    "x-apifox-orders": [
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      "value": "{\r\n    \"image\": \"https://h2.inkwai.com/bs2/upload-ylab-stunt/se/ai_portal_queue_mmu_image_upscale_aiweb/3214b798-e1b4-4b00-b7af-72b5b0417420_raw_image_0.jpg\",\r\n    \"up_expansion_ratio\": 0.1,\r\n    \"down_expansion_ratio\": 0.1,\r\n    \"left_expansion_ratio\": 0.1,\r\n    \"right_expansion_ratio\": 0.1,\r\n    \"prompt\": \"聚焦中心\",\r\n    \"n\": 1,\r\n    \"callback_url\": \"\",\r\n    \"external_task_id\": \"\"\r\n}"
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