Delete app.py
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app.py
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from langchain.agents import load_tools
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from langchain.agents import initialize_agent
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from langchain.agents import AgentType
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from langchain.llms import OpenAI
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from langchain.chat_models import AzureChatOpenAI
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from langchain.chains.conversation.memory import ConversationBufferWindowMemory
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import os
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from langchain.tools import BaseTool
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import torch
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from transformers import BlipProcessor, BlipForConditionalGeneration
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from transformers.models.oneformer.modeling_oneformer import OneFormerModelOutput
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import requests
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from PIL import Image
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import gradio as gr
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from langchain.chains import LLMChain
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from langchain.prompts import PromptTemplate
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OPENAI_API_KEY=os.getenv("OPENAI_API_KEY")
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OPENAI_API_BASE=os.getenv("OPENAI_API_BASE")
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DEP_NAME=os.getenv("deployment_name")
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llm=AzureChatOpenAI(deployment_name=DEP_NAME,openai_api_base=OPENAI_API_BASE,openai_api_key=OPENAI_API_KEY,openai_api_version="2023-03-15-preview",model_name="gpt-3.5-turbo")
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image_to_text_model = "Salesforce/blip-image-captioning-large"
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device = 'cuda' if torch.cuda.is_available() else 'cpu'
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model = BlipForConditionalGeneration.from_pretrained(image_to_text_model).to(device)
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processor = BlipProcessor.from_pretrained(image_to_text_model)
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def describeImage(image_url):
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#image_object = Image.open(requests.get(image_url, stream=True).raw).convert('RGB')
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image_object = Image.open(image_url).convert('RGB')
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# image
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inputs = processor(image_object, return_tensors="pt").to(device)
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outputs = model.generate(**inputs)
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return processor.decode(outputs[0], skip_special_tokens=True)
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class DescribeImageTool(BaseTool):
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name = "Describe Image Tool"
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description = 'use this tool to describe an image.'
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def _run(self, url: str):
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description = describeImage(url)
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return description
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def _arun(self, query: str):
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raise NotImplementedError("Async operation not supported yet")
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tools = [DescribeImageTool()]
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def enToChinese(english):
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pp = "Please translate the following sentence from English to Chinese:{english}"
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prompt = PromptTemplate(
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input_variables=["english"],
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template=pp
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)
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llchain=LLMChain(llm=llm,prompt=prompt)
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return llchain.run(english)
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def chToEnglish(chinese):
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pp = "Please translate the following sentence from Chinese to English:{chinese}"
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prompt = PromptTemplate(
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input_variables=["chinese"],
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template=pp
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)
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llchain=LLMChain(llm=llm,prompt=prompt)
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return llchain.run(chinese)
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agent = initialize_agent(
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agent='chat-conversational-react-description',
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tools=tools,
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llm=llm,
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verbose=True,
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max_iterations=3,
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early_stopping_method='generate',
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memory=ConversationBufferWindowMemory(
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memory_key='chat_history',
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k=5,
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return_messages=True
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)
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)
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def image_to_txt(image_url,user_input):
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user_input = chToEnglish(user_input)
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return enToChinese(agent(f"{input}:\n{image_url}")['output'])
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with gr.Blocks() as demo:
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image_url = gr.Image(type="filepath",label="请选择一张图片")
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print(image_url)
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user_input = gr.Textbox(show_label=False, placeholder="请输入...", lines=1)
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output = gr.Textbox(show_label=False, placeholder="", lines=1)
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submit_btn = gr.Button('提交',variant="primary")
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submit_btn.click(image_to_txt,inputs=[image_url,user_input],outputs=output)
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demo.launch()
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