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167
dsLightRag/QWenImage/QWenImageEditKit.py
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167
dsLightRag/QWenImage/QWenImageEditKit.py
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from http import HTTPStatus
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from urllib.parse import urlparse, unquote
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from pathlib import PurePosixPath
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import requests
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from dashscope import MultiModalConversation
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from Config.Config import ALY_LLM_API_KEY
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class QwenImageEditor:
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"""Qwen Image Editing Toolkit"""
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def __init__(self, api_key=None):
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"""初始化图片编辑器
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Args:
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api_key: 阿里云API密钥,如果为None则使用配置文件中的密钥
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"""
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self.api_key = api_key or ALY_LLM_API_KEY
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self.model = "qwen-image-edit"
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def edit_image(self, image_url, prompt, negative_prompt="", stream=False, watermark=True):
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"""编辑图片
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Args:
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image_url: 原始图片URL
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prompt: 编辑指令描述
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negative_prompt: 负面提示词
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stream: 是否流式返回
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watermark: 是否添加水印
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Returns:
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dict: 包含编辑结果的字典
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"""
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try:
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# 构建对话消息
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messages = [{
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"role": "user",
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"content": [
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{"image": image_url},
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{"text": prompt}
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]
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}]
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# 调用图片编辑API
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response = MultiModalConversation.call(
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api_key=self.api_key,
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model=self.model,
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messages=messages,
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result_format='message',
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stream=stream,
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watermark=watermark,
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negative_prompt=negative_prompt
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)
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# 处理响应结果
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if response.status_code == HTTPStatus.OK:
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# 提取编辑后的图片URL
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edited_image_url = response.output.choices[0].message.content[0].get("image")
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if not edited_image_url:
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return {
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'success': False,
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'image_url': None,
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'error_msg': 'API返回空结果,图片编辑失败'
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}
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return {
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'success': True,
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'image_url': edited_image_url,
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'error_msg': None
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}
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else:
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error_msg = f'API调用失败: status_code={response.status_code}, code={response.code}, message={response.message}'
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return {
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'success': False,
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'image_url': None,
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'error_msg': error_msg
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}
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except Exception as e:
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return {
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'success': False,
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'image_url': None,
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'error_msg': f'发生异常: {str(e)}'
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}
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def save_edited_image(self, image_url, save_dir='./'):
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"""保存编辑后的图片到本地
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Args:
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image_url: 编辑后的图片URL
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save_dir: 保存目录
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Returns:
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dict: 包含保存结果的字典
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"""
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try:
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# 从URL解析文件名
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file_name = PurePosixPath(unquote(urlparse(image_url).path)).parts[-1]
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save_path = f'{save_dir}{file_name}'
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# 下载并保存图片
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with open(save_path, 'wb+') as f:
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f.write(requests.get(image_url).content)
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return {
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'success': True,
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'file_path': save_path,
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'error_msg': None
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}
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except Exception as e:
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return {
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'success': False,
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'file_path': None,
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'error_msg': f'保存图片失败: {str(e)}'
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}
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def edit_and_save_image(self, image_url, prompt, save_dir='./', negative_prompt=""):
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"""编辑图片并保存到本地
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Args:
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image_url: 原始图片URL
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prompt: 编辑指令描述
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save_dir: 保存目录
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negative_prompt: 负面提示词
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Returns:
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dict: 包含编辑和保存结果的字典
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"""
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# 编辑图片
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edit_result = self.edit_image(image_url, prompt, negative_prompt)
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if not edit_result['success']:
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return edit_result
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# 保存编辑后的图片
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save_result = self.save_edited_image(edit_result['image_url'], save_dir)
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if save_result['success']:
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return {
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'success': True,
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'image_url': edit_result['image_url'],
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'file_path': save_result['file_path'],
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'error_msg': None
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}
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else:
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return {
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'success': False,
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'image_url': edit_result['image_url'],
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'file_path': None,
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'error_msg': save_result['error_msg']
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}
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# 示例使用
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if __name__ == "__main__":
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# 创建编辑器实例
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editor = QwenImageEditor()
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# 示例参数
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image_url = "https://dashscope.oss-cn-beijing.aliyuncs.com/images/dog_and_girl.jpeg"
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edit_prompt = "将图中的人物改为站立姿势,弯腰握住狗的前爪"
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print('----编辑图片,请等待任务执行----')
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result = editor.edit_and_save_image(image_url, edit_prompt)
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if result['success']:
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print(f'编辑成功,图片URL: {result["image_url"]}')
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print(f'保存成功,文件路径: {result["file_path"]}')
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else:
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print(f'编辑失败: {result["error_msg"]}')
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