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Update app.py
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app.py
CHANGED
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@@ -3,7 +3,6 @@ import base64
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import requests
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import json
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from flask import Flask, render_template, request, jsonify
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from werkzeug.utils import secure_filename
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from PIL import Image
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import io
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@@ -12,7 +11,7 @@ app.config['MAX_CONTENT_LENGTH'] = 10 * 1024 * 1024 # 10MB max file size
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# Gemini API configuration
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GEMINI_API_KEY = os.environ.get('GEMINI_API_KEY')
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GEMINI_API_URL = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.
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ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'}
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@@ -20,13 +19,13 @@ def allowed_file(filename):
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return '.' in filename and \
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filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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#
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def optimize_image(
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"""优化图像大小和质量"""
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try:
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# Convert RGBA to RGB if necessary
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if img.mode in ('RGBA', 'LA'):
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background = Image.new('RGB', img.size, (255, 255, 255))
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if img.mode == 'RGBA':
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@@ -35,10 +34,8 @@ def optimize_image(image_file, max_size=(1024, 1024), quality=85):
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background.paste(img, mask=img.split()[-1])
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img = background
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# Resize if too large
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img.thumbnail(max_size, Image.Resampling.LANCZOS)
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# Save to bytes
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img_byte_arr = io.BytesIO()
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img.save(img_byte_arr, format='JPEG', quality=quality, optimize=True)
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img_byte_arr.seek(0)
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@@ -46,18 +43,16 @@ def optimize_image(image_file, max_size=(1024, 1024), quality=85):
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return img_byte_arr.getvalue()
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except Exception as e:
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print(f"Image optimization error: {e}")
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#
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return image_file.read()
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# call_gemini_api
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def call_gemini_api(text_content=None, image_data=None):
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"""调用Gemini API进行分析"""
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if not GEMINI_API_KEY:
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return {"error": "未配置Gemini API密钥,请设置环境变量GEMINI_API_KEY"}
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# 构建专业的皮肤科医生prompt
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system_prompt = """你是一位经验丰富的皮肤科专家医生,具有多年的临床诊疗经验。请基于提供的信息进行专业的皮肤病分析。
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分析要求:
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@@ -98,18 +93,14 @@ def call_gemini_api(text_content=None, image_data=None):
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---
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**免责声明**: 此分析仅供临床参考,最终诊断需结合完整病史、体格检查等综合判断。建议患者及时就医,接受专业医师诊疗。"""
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# 构建请求内容
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parts = []
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# 添加系统提示和文本内容
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if text_content:
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parts.append({"text": f"{system_prompt}\n\n患者症状描述:{text_content}"})
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else:
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parts.append({"text": system_prompt + "\n\n请基于图像进行分析。"})
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# 添加图像数据
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if image_data:
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# 转换为base64
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image_base64 = base64.b64encode(image_data).decode('utf-8')
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parts.append({
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"inline_data": {
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@@ -118,7 +109,6 @@ def call_gemini_api(text_content=None, image_data=None):
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}
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})
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# 构建请求体
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request_body = {
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"contents": [
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{
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@@ -126,7 +116,7 @@ def call_gemini_api(text_content=None, image_data=None):
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}
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],
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"generationConfig": {
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"temperature": 0.1,
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"topK": 40,
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"topP": 0.95,
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"maxOutputTokens": 2048,
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@@ -151,7 +141,6 @@ def call_gemini_api(text_content=None, image_data=None):
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]
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}
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# 发送请求
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headers = {
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'Content-Type': 'application/json',
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'x-goog-api-key': GEMINI_API_KEY
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@@ -168,7 +157,6 @@ def call_gemini_api(text_content=None, image_data=None):
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response.raise_for_status()
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result = response.json()
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# 解析响应
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if 'candidates' in result and len(result['candidates']) > 0:
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content = result['candidates'][0]['content']['parts'][0]['text']
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return {"result": content}
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@@ -197,30 +185,24 @@ def analyze():
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text_content = request.form.get('text', '').strip()
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image_data = None
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# 修复图像处理逻辑
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if 'image' in request.files:
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file = request.files['image']
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if file.filename != '':
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if allowed_file(file.filename):
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try:
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#
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#
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# 优化图像
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image_data = optimize_image(file)
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except Exception as e:
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return jsonify({"error": f"图像处理失败: {str(e)}"}), 400
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else:
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return jsonify({"error": "不支持的文件格式,请上传PNG、JPG、JPEG或GIF格式的图像"}), 400
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# 验证输入
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if not text_content and not image_data:
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return jsonify({"error": "请至少提供症状描述或上传皮肤图像"}), 400
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# 调用Gemini API
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result = call_gemini_api(text_content, image_data)
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return jsonify(result)
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import requests
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import json
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from flask import Flask, render_template, request, jsonify
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from PIL import Image
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import io
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# Gemini API configuration
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GEMINI_API_KEY = os.environ.get('GEMINI_API_KEY')
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GEMINI_API_URL = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent"
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ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'}
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return '.' in filename and \
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filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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# 优化图像函数,现在接受字节数据作为输入
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def optimize_image(image_bytes, max_size=(1024, 1024), quality=85):
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"""优化图像大小和质量"""
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try:
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# 使用 io.BytesIO 将字节数据转换为文件对象,供 Pillow 使用
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img = Image.open(io.BytesIO(image_bytes))
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if img.mode in ('RGBA', 'LA'):
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background = Image.new('RGB', img.size, (255, 255, 255))
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if img.mode == 'RGBA':
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background.paste(img, mask=img.split()[-1])
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img = background
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img.thumbnail(max_size, Image.Resampling.LANCZOS)
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img_byte_arr = io.BytesIO()
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img.save(img_byte_arr, format='JPEG', quality=quality, optimize=True)
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img_byte_arr.seek(0)
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return img_byte_arr.getvalue()
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except Exception as e:
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print(f"Image optimization error: {e}")
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# 优化失败,返回原始字节数据
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return image_bytes
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# call_gemini_api 函数
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def call_gemini_api(text_content=None, image_data=None):
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"""调用Gemini API进行分析"""
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if not GEMINI_API_KEY:
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return {"error": "未配置Gemini API密钥,请设置环境变量GEMINI_API_KEY"}
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system_prompt = """你是一位经验丰富的皮肤科专家医生,具有多年的临床诊疗经验。请基于提供的信息进行专业的皮肤病分析。
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分析要求:
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---
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**免责声明**: 此分析仅供临床参考,最终诊断需结合完整病史、体格检查等综合判断。建议患者及时就医,接受专业医师诊疗。"""
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parts = []
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if text_content:
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parts.append({"text": f"{system_prompt}\n\n患者症状描述:{text_content}"})
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else:
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parts.append({"text": system_prompt + "\n\n请基于图像进行分析。"})
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if image_data:
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image_base64 = base64.b64encode(image_data).decode('utf-8')
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parts.append({
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"inline_data": {
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}
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})
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request_body = {
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"contents": [
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{
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}
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],
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"generationConfig": {
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"temperature": 0.1,
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"topK": 40,
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"topP": 0.95,
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"maxOutputTokens": 2048,
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]
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}
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headers = {
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'Content-Type': 'application/json',
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'x-goog-api-key': GEMINI_API_KEY
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response.raise_for_status()
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result = response.json()
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if 'candidates' in result and len(result['candidates']) > 0:
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content = result['candidates'][0]['content']['parts'][0]['text']
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return {"result": content}
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text_content = request.form.get('text', '').strip()
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image_data = None
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if 'image' in request.files:
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file = request.files['image']
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if file.filename != '':
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if allowed_file(file.filename):
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try:
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# 核心修复:一次性将文件流读入内存
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original_image_bytes = file.read()
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# 调用优化函数,它现在接受字节数据
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image_data = optimize_image(original_image_bytes)
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except Exception as e:
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return jsonify({"error": f"图像处理失败: {str(e)}"}), 400
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else:
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return jsonify({"error": "不支持的文件格式,请上传PNG、JPG、JPEG或GIF格式的图像"}), 400
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if not text_content and not image_data:
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return jsonify({"error": "请至少提供症状描述或上传皮肤图像"}), 400
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result = call_gemini_api(text_content, image_data)
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return jsonify(result)
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