527e6a43ae
- 拆分 load_image 为 _load_image_raw 与 load_image，隔离索引构建与 UI 错误提示 - 移除 build_index 中的进度条，避免副作用 - 使用 session_state 管理 query_url 与 query_image_bytes，修复切换输入方式时状态丢失 - 示例图片选择后增加 st.rerun()，确保 UI 即时刷新 - 搜索前增加空值校验，给出更友好的提示信息
615 lines
24 KiB
Python
615 lines
24 KiB
Python
"""
|
||
病虫害以图搜图
|
||
基于 CLIP 本地模型的图片 Embedding 相似度搜索
|
||
"""
|
||
|
||
from __future__ import annotations
|
||
|
||
import io
|
||
import os
|
||
from dataclasses import dataclass
|
||
from typing import Literal
|
||
|
||
import numpy as np
|
||
import plotly.graph_objects as go
|
||
import requests
|
||
import streamlit as st
|
||
from PIL import Image
|
||
from transformers import CLIPModel, CLIPProcessor
|
||
|
||
# ─── Page Config ────────────────────────────────────────────────────────────
|
||
st.set_page_config(
|
||
page_title="病虫害以图搜图",
|
||
page_icon="🌿",
|
||
layout="wide",
|
||
initial_sidebar_state="expanded",
|
||
)
|
||
|
||
# ─── Custom CSS ──────────────────────────────────────────────────────────────
|
||
st.markdown("""
|
||
<style>
|
||
:root {
|
||
--soil: #7c5e42;
|
||
--leaf: #4a7c59;
|
||
--leaf-light: #6b9e75;
|
||
--wheat: #d4a574;
|
||
--cream: #faf8f3;
|
||
--paper: #ffffff;
|
||
--ink: #2c2c2c;
|
||
--ink-muted: #5a5a5a;
|
||
--border: #e5e0d5;
|
||
--shadow: rgba(0,0,0,0.04);
|
||
--danger: #c45c4a;
|
||
--danger-light: #f5eae8;
|
||
}
|
||
|
||
html, body, [class*="css"] {
|
||
font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
|
||
color: var(--ink);
|
||
}
|
||
|
||
.stApp {
|
||
background: var(--cream);
|
||
}
|
||
|
||
/* Sidebar */
|
||
[data-testid="stSidebar"] {
|
||
background: #f5f2eb;
|
||
border-right: 1px solid var(--border);
|
||
}
|
||
[data-testid="stSidebar"] .stSlider label,
|
||
[data-testid="stSidebar"] .stNumberInput label,
|
||
[data-testid="stSidebar"] .stSelectbox label,
|
||
[data-testid="stSidebar"] .stTextInput label,
|
||
[data-testid="stSidebar"] .stFileUploader label {
|
||
color: var(--soil) !important;
|
||
font-size: 0.85rem;
|
||
font-weight: 500;
|
||
}
|
||
|
||
/* Metric / hero cards */
|
||
.metric-card {
|
||
background: var(--paper);
|
||
border: 1px solid var(--border);
|
||
border-radius: 14px;
|
||
padding: 20px 18px;
|
||
text-align: center;
|
||
box-shadow: 0 2px 10px var(--shadow);
|
||
}
|
||
.metric-value {
|
||
font-size: 1.9rem;
|
||
font-weight: 700;
|
||
color: var(--leaf);
|
||
line-height: 1.1;
|
||
}
|
||
.metric-unit {
|
||
font-size: 0.8rem;
|
||
color: var(--ink-muted);
|
||
margin-top: 4px;
|
||
}
|
||
.metric-label {
|
||
font-size: 0.9rem;
|
||
color: var(--ink);
|
||
margin-top: 8px;
|
||
font-weight: 500;
|
||
}
|
||
|
||
/* Section headers */
|
||
.section-header {
|
||
font-size: 0.95rem;
|
||
font-weight: 600;
|
||
color: var(--soil);
|
||
padding-bottom: 8px;
|
||
margin-bottom: 14px;
|
||
margin-top: 22px;
|
||
border-bottom: 1px solid var(--border);
|
||
}
|
||
|
||
/* Result cards */
|
||
.result-card {
|
||
background: var(--paper);
|
||
border: 1px solid var(--border);
|
||
border-radius: 14px;
|
||
padding: 16px;
|
||
margin-bottom: 14px;
|
||
box-shadow: 0 1px 6px var(--shadow);
|
||
}
|
||
.result-rank {
|
||
width: 28px;
|
||
height: 28px;
|
||
border-radius: 50%;
|
||
background: var(--wheat);
|
||
color: #fff;
|
||
font-size: 0.85rem;
|
||
font-weight: 700;
|
||
display: inline-flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
margin-right: 10px;
|
||
}
|
||
.result-name {
|
||
font-size: 1.05rem;
|
||
font-weight: 600;
|
||
color: var(--ink);
|
||
}
|
||
.result-score {
|
||
font-size: 0.9rem;
|
||
color: var(--leaf);
|
||
font-weight: 600;
|
||
}
|
||
|
||
/* Tags */
|
||
.tag {
|
||
display: inline-block;
|
||
background: #f3f6f3;
|
||
border: 1px solid var(--leaf-light);
|
||
border-radius: 999px;
|
||
padding: 3px 10px;
|
||
font-size: 0.78rem;
|
||
color: var(--leaf);
|
||
margin: 3px 3px 3px 0;
|
||
}
|
||
.tag-warn {
|
||
background: var(--danger-light);
|
||
border-color: var(--danger);
|
||
color: var(--danger);
|
||
}
|
||
|
||
/* Hero */
|
||
.hero-title {
|
||
font-size: 1.6rem;
|
||
font-weight: 700;
|
||
color: var(--soil);
|
||
line-height: 1.2;
|
||
}
|
||
.hero-sub {
|
||
font-size: 0.85rem;
|
||
color: var(--ink-muted);
|
||
margin-top: 4px;
|
||
}
|
||
|
||
/* Sidebar title */
|
||
.sidebar-title {
|
||
font-size: 1.15rem;
|
||
font-weight: 700;
|
||
color: var(--soil);
|
||
margin-bottom: 2px;
|
||
}
|
||
.sidebar-sub {
|
||
font-size: 0.75rem;
|
||
color: var(--ink-muted);
|
||
margin-bottom: 12px;
|
||
}
|
||
|
||
/* Info panel */
|
||
.info-panel {
|
||
background: var(--paper);
|
||
border: 1px solid var(--border);
|
||
border-radius: 12px;
|
||
padding: 14px 16px;
|
||
font-size: 0.88rem;
|
||
color: var(--ink-muted);
|
||
line-height: 1.7;
|
||
}
|
||
|
||
/* Streamlit overrides */
|
||
.stButton > button {
|
||
border-radius: 10px !important;
|
||
background: var(--leaf) !important;
|
||
border: none !important;
|
||
color: #fff !important;
|
||
}
|
||
.stButton > button:hover {
|
||
background: var(--leaf-light) !important;
|
||
}
|
||
|
||
/* Radio horizontal */
|
||
.stRadio [role="radiogroup"] {
|
||
gap: 8px;
|
||
}
|
||
</style>
|
||
""", unsafe_allow_html=True)
|
||
|
||
|
||
# ─── Knowledge Base ──────────────────────────────────────────────────────────
|
||
@dataclass(frozen=True)
|
||
class PestItem:
|
||
name: str
|
||
url: str
|
||
symptoms: str
|
||
treatment: str
|
||
crop: str
|
||
category: Literal["病害", "虫害"]
|
||
|
||
|
||
PEST_KNOWLEDGE: list[PestItem] = [
|
||
PestItem(
|
||
name="水稻稻瘟病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151854_dc9667cf_%E6%B0%B4%E7%A8%BB%E7%A8%BB%E7%98%9F%E7%97%851.jpeg",
|
||
symptoms="叶片出现梭形或纺锤形病斑，中央灰白色，边缘褐色，严重时病斑连片导致叶片枯死",
|
||
treatment="选用抗病品种，合理施肥避免偏施氮肥，发病初期喷施三环唑或稻瘟灵",
|
||
crop="水稻",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="水稻纹枯病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_152022_9f3124ab_%E6%B0%B4%E7%A8%BB%E7%BA%B9%E6%9E%AF%E7%97%851.jpeg",
|
||
symptoms="叶鞘和叶片上出现云纹状灰绿色至灰褐色病斑，后期病斑边缘褐色、中央灰白色",
|
||
treatment="合理密植，科学管水，发病初期喷施井冈霉素或噻呋酰胺",
|
||
crop="水稻",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="水稻胡麻叶斑病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151936_41fdb1dc_%E6%B0%B4%E7%A8%BB%E8%83%A1%E9%BA%BB%E5%8F%B6%E6%96%91%E7%97%851.jpeg",
|
||
symptoms="叶片上出现暗褐色芝麻粒大小的椭圆形病斑，病斑周围有黄色晕圈",
|
||
treatment="增施硅肥和钾肥提高抗病力，喷施丙环唑或咪鲜胺防治",
|
||
crop="水稻",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="小麦锈病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_153814_3e175ca3_%E5%B0%8F%E9%BA%A6%E9%94%88%E7%97%851.jpeg",
|
||
symptoms="叶片和叶鞘上出现铁锈色粉状疱疹（夏孢子堆），后期变为黑色冬孢子堆",
|
||
treatment="种植抗锈品种，发病初期喷施三唑酮或烯唑醇，注意轮作",
|
||
crop="小麦",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="小麦赤霉病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_152112_2e1f530e_%E5%B0%8F%E9%BA%A6%E8%B5%A4%E9%9C%89%E7%97%851.jpeg",
|
||
symptoms="穗部小穗发病，颖壳上出现水浸状褐色斑，后期产生粉红色霉层",
|
||
treatment="选用抗病品种，齐穗至扬花初期喷施多菌灵或戊唑醇",
|
||
crop="小麦",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="玉米大斑病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_153911_ee5a72be_%E7%8E%89%E7%B1%B3%E5%A4%A7%E6%96%91%E7%97%851.jpeg",
|
||
symptoms="叶片上出现灰绿色水浸状斑点，扩展为长梭形灰褐色大型病斑",
|
||
treatment="种植抗病品种，适时早播，发病初期喷施多菌灵或代森锰锌",
|
||
crop="玉米",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="玉米小斑病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_154001_e31a0103_%E7%8E%89%E7%B1%B3%E5%B0%8F%E6%96%91%E7%97%851.jpeg",
|
||
symptoms="叶片上出现椭圆形黄褐色小病斑，有2-3圈同心轮纹，边缘紫褐色",
|
||
treatment="轮作倒茬，清除病残体，喷施百菌清或甲基托布津",
|
||
crop="玉米",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="玉米螟",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_153938_8be05006_%E7%8E%89%E7%B1%B3%E8%9E%9F1.jpeg",
|
||
symptoms="幼虫蛀食茎秆和穗轴，茎秆上有蛀孔，孔口有虫粪，造成茎秆折断",
|
||
treatment="心叶期撒施白僵菌颗粒剂，释放赤眼蜂生物防治，大喇叭口期灌心",
|
||
crop="玉米",
|
||
category="虫害",
|
||
),
|
||
PestItem(
|
||
name="稻飞虱",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151643_db5e1d36_%E7%A8%BB%E9%A3%9E%E8%99%AB1.jpeg",
|
||
symptoms="稻株基部聚集大量褐色或白色小型飞虫，受害稻株发黄矮缩，严重时枯死倒伏",
|
||
treatment="合理施肥避免贪青晚熟，选用吡蚜酮或烯啶虫胺防治，保护利用天敌",
|
||
crop="水稻",
|
||
category="虫害",
|
||
),
|
||
PestItem(
|
||
name="大豆蚜虫",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151549_d9cf327b_%E5%A4%A7%E8%B1%86%E8%9A%9C%E8%99%AB1.jpeg",
|
||
symptoms="嫩叶和茎尖聚集大量绿色或黄色蚜虫，叶片卷缩变形，植株矮化",
|
||
treatment="保护瓢虫等天敌，百株蚜量达1000头时喷施吡虫啉或啶虫脒",
|
||
crop="大豆",
|
||
category="虫害",
|
||
),
|
||
PestItem(
|
||
name="番茄晚疫病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151705_3dd8baab_%E7%95%AA%E8%8C%84%E6%99%9A%E7%96%AB%E7%97%851.jpeg",
|
||
symptoms="叶片出现水浸状暗绿色不规则病斑，潮湿时叶背面产生白色霉层，果实变褐硬化",
|
||
treatment="控制温湿度，及时通风降湿，发病初期喷施甲霜灵锰锌或霜脲氰",
|
||
crop="番茄",
|
||
category="病害",
|
||
),
|
||
PestItem(
|
||
name="黄瓜霜霉病",
|
||
url="https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151804_7be515fa_%E9%BB%84%E7%93%9C%E9%9C%9C%E9%9C%89%E7%97%851.jpeg",
|
||
symptoms="叶片正面出现黄色多角形病斑，叶背面潮湿时产生灰黑色霉层",
|
||
treatment="选用抗病品种，膜下滴灌降低湿度，喷施百菌清或霜霉威盐酸盐",
|
||
crop="黄瓜",
|
||
category="病害",
|
||
),
|
||
]
|
||
|
||
EXAMPLE_IMAGES: list[tuple[str, str]] = [
|
||
(
|
||
"水稻稻瘟病",
|
||
"https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151914_4f5b8fef_%E6%B0%B4%E7%A8%BB%E7%A8%BB%E7%98%9F%E7%97%852.jpeg",
|
||
),
|
||
(
|
||
"番茄晚疫病",
|
||
"https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_151726_a8f31320_%E7%95%AA%E8%8C%84%E6%99%9A%E7%96%AB%E7%97%852.jpeg",
|
||
),
|
||
(
|
||
"小麦锈病",
|
||
"https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_153837_e8ae9f43_%E5%B0%8F%E9%BA%A6%E9%94%88%E7%97%852.jpeg",
|
||
),
|
||
(
|
||
"水稻纹枯病",
|
||
"https://minio.dev.maimaiag.com/crop-prod-bucket/field_photo/20260410_152050_77d568b1_%E6%B0%B4%E7%A8%BB%E7%BA%B9%E6%9E%AF%E7%97%852.jpeg",
|
||
),
|
||
]
|
||
|
||
|
||
# ─── CLIP Embedder ───────────────────────────────────────────────────────────
|
||
class CLIPEmbedder:
|
||
MODEL_NAME = "openai/clip-vit-base-patch32"
|
||
|
||
def __init__(self) -> None:
|
||
self._processor: CLIPProcessor | None = None
|
||
self._model: CLIPModel | None = None
|
||
|
||
def _load(self) -> tuple[CLIPProcessor, CLIPModel]:
|
||
if self._processor is None or self._model is None:
|
||
with st.spinner("首次启动正在加载 CLIP 模型，请稍候..."):
|
||
self._processor = CLIPProcessor.from_pretrained(self.MODEL_NAME)
|
||
self._model = CLIPModel.from_pretrained(self.MODEL_NAME)
|
||
return self._processor, self._model
|
||
|
||
def embed(self, image: Image.Image) -> np.ndarray:
|
||
processor, model = self._load()
|
||
inputs = processor(images=image, return_tensors="pt")
|
||
image_features = model.get_image_features(**inputs)
|
||
vec = image_features.detach().cpu().numpy().flatten()
|
||
norm = np.linalg.norm(vec)
|
||
if norm == 0:
|
||
return vec
|
||
return vec / norm
|
||
|
||
|
||
@st.cache_resource(show_spinner=False)
|
||
def get_embedder() -> CLIPEmbedder:
|
||
return CLIPEmbedder()
|
||
|
||
|
||
# ─── Utilities ───────────────────────────────────────────────────────────────
|
||
def _load_image_raw(source: str | io.BytesIO) -> Image.Image | None:
|
||
try:
|
||
if isinstance(source, str):
|
||
resp = requests.get(source, timeout=30)
|
||
resp.raise_for_status()
|
||
return Image.open(io.BytesIO(resp.content)).convert("RGB")
|
||
return Image.open(source).convert("RGB")
|
||
except Exception:
|
||
return None
|
||
|
||
|
||
def load_image(source: str | io.BytesIO) -> Image.Image | None:
|
||
img = _load_image_raw(source)
|
||
if img is None:
|
||
st.error("图片加载失败，请检查链接是否可访问或文件是否损坏")
|
||
return img
|
||
|
||
|
||
def cosine_similarity(a: np.ndarray, b: np.ndarray) -> float:
|
||
return float(np.dot(a, b))
|
||
|
||
|
||
@st.cache_data(show_spinner=False)
|
||
def build_index() -> tuple[list[dict], list[str], list[str]]:
|
||
embedder = get_embedder()
|
||
items, succeeded, failed = [], [], []
|
||
for pest in PEST_KNOWLEDGE:
|
||
img = _load_image_raw(pest.url)
|
||
if img is None:
|
||
failed.append(pest.name)
|
||
continue
|
||
try:
|
||
embedding = embedder.embed(img)
|
||
items.append({
|
||
"name": pest.name,
|
||
"url": pest.url,
|
||
"embedding": embedding,
|
||
"symptoms": pest.symptoms,
|
||
"treatment": pest.treatment,
|
||
"crop": pest.crop,
|
||
"category": pest.category,
|
||
})
|
||
succeeded.append(pest.name)
|
||
except Exception:
|
||
failed.append(pest.name)
|
||
return items, succeeded, failed
|
||
|
||
|
||
# ─── Sidebar ─────────────────────────────────────────────────────────────────
|
||
with st.sidebar:
|
||
st.markdown('<div class="sidebar-title">🌿 病虫害以图搜图</div>', unsafe_allow_html=True)
|
||
st.markdown('<div class="sidebar-sub">上传图片，智能识别相似病虫害</div>', unsafe_allow_html=True)
|
||
st.markdown("<hr style='border:none;border-top:1px solid var(--border);margin:12px 0;'>", unsafe_allow_html=True)
|
||
|
||
st.markdown('<div class="section-header" style="margin-top:0">🖼️ 输入方式</div>', unsafe_allow_html=True)
|
||
input_mode = st.radio("", ["上传本地图片", "输入图片 URL", "选择示例图片"], label_visibility="collapsed")
|
||
|
||
# 初始化 session_state
|
||
if "query_url" not in st.session_state:
|
||
st.session_state.query_url = ""
|
||
if "query_image_bytes" not in st.session_state:
|
||
st.session_state.query_image_bytes = None
|
||
|
||
query_source = None
|
||
query_url = ""
|
||
|
||
if input_mode == "上传本地图片":
|
||
uploaded = st.file_uploader("选择图片", type=["jpg", "jpeg", "png", "webp"])
|
||
if uploaded is not None:
|
||
st.session_state.query_image_bytes = uploaded.getvalue()
|
||
st.session_state.query_url = ""
|
||
if st.session_state.query_image_bytes is not None:
|
||
query_source = io.BytesIO(st.session_state.query_image_bytes)
|
||
elif input_mode == "输入图片 URL":
|
||
query_url = st.text_input("图片 URL", value=st.session_state.query_url, placeholder="https://example.com/image.jpg")
|
||
st.session_state.query_url = query_url
|
||
st.session_state.query_image_bytes = None
|
||
if query_url.strip():
|
||
query_source = query_url.strip()
|
||
else:
|
||
st.markdown('<div style="font-size:0.8rem;color:#7a7a7a;margin-bottom:6px;">点击选择示例</div>', unsafe_allow_html=True)
|
||
cols = st.columns(2)
|
||
for idx, (name, url) in enumerate(EXAMPLE_IMAGES):
|
||
with cols[idx % 2]:
|
||
if st.button(name, key=f"ex_{name}"):
|
||
st.session_state.query_url = url
|
||
st.session_state.query_image_bytes = None
|
||
st.rerun()
|
||
if st.session_state.query_url:
|
||
query_url = st.session_state.query_url
|
||
query_source = query_url
|
||
st.image(query_url, use_container_width=True)
|
||
|
||
st.markdown('<div class="section-header">⚙️ 搜索设置</div>', unsafe_allow_html=True)
|
||
top_k = st.slider("返回条数", 1, min(12, len(PEST_KNOWLEDGE)), 5)
|
||
|
||
st.markdown("<br>", unsafe_allow_html=True)
|
||
search_clicked = st.button("开始搜索", type="primary", use_container_width=True)
|
||
|
||
st.markdown("<hr style='border:none;border-top:1px solid var(--border);margin:12px 0;'>", unsafe_allow_html=True)
|
||
st.markdown("""
|
||
<div class="info-panel">
|
||
<b>使用说明</b><br>
|
||
1. 上传病虫害患处图片<br>
|
||
2. 系统自动提取图像特征<br>
|
||
3. 与知识库比对返回相似结果<br>
|
||
4. 参考症状与防治建议
|
||
</div>
|
||
""", unsafe_allow_html=True)
|
||
|
||
# ─── Build Index ─────────────────────────────────────────────────────────────
|
||
index_items, succeeded, failed = build_index()
|
||
|
||
# ─── Main Layout ─────────────────────────────────────────────────────────────
|
||
st.markdown("""
|
||
<div style="display:flex; align-items:baseline; gap:12px; margin-bottom:4px;">
|
||
<div class="hero-title">病虫害以图搜图</div>
|
||
</div>
|
||
<div class="hero-sub">基于 CLIP 视觉模型的病虫害相似度检索与防治建议</div>
|
||
""", unsafe_allow_html=True)
|
||
|
||
# Status badges
|
||
badges = []
|
||
if succeeded:
|
||
badges.append(f'<span class="tag">📚 知识库 {len(succeeded)} 种</span>')
|
||
if failed:
|
||
badges.append(f'<span class="tag tag-warn">⚠️ 索引失败 {len(failed)} 种</span>')
|
||
if badges:
|
||
st.markdown(f"<div style='margin-top:8px;'>{''.join(badges)}</div>", unsafe_allow_html=True)
|
||
|
||
st.markdown("<br>", unsafe_allow_html=True)
|
||
|
||
# ─── Search Logic ────────────────────────────────────────────────────────────
|
||
if search_clicked:
|
||
if query_source is None:
|
||
st.warning("请先上传图片、输入图片 URL 或选择示例图片后再点击搜索")
|
||
elif not index_items:
|
||
st.warning("知识库索引为空，请检查网络连接后刷新页面重试。")
|
||
else:
|
||
query_img = load_image(query_source)
|
||
if query_img is not None:
|
||
col_query, col_preview = st.columns([1, 3])
|
||
with col_query:
|
||
st.markdown('<div class="section-header" style="margin-top:0">🔍 查询图片</div>', unsafe_allow_html=True)
|
||
st.image(query_img, use_container_width=True)
|
||
|
||
with col_preview:
|
||
st.markdown('<div class="section-header" style="margin-top:0">⏳ 正在分析...</div>', unsafe_allow_html=True)
|
||
progress = st.progress(0, text="提取图像特征...")
|
||
|
||
embedder = get_embedder()
|
||
query_embedding = embedder.embed(query_img)
|
||
progress.progress(50, text="比对知识库...")
|
||
|
||
scores = []
|
||
for item in index_items:
|
||
sim = cosine_similarity(query_embedding, item["embedding"])
|
||
scores.append((sim, item))
|
||
scores.sort(key=lambda x: x[0], reverse=True)
|
||
results = scores[:top_k]
|
||
progress.progress(100, text="搜索完成")
|
||
progress.empty()
|
||
|
||
st.markdown(f'<div class="section-header" style="margin-top:0">🏆 搜索结果（Top-{len(results)}）</div>', unsafe_allow_html=True)
|
||
|
||
# Similarity bar chart
|
||
names = [f"{r[1]['name']}" for r in results]
|
||
sims = [r[0] * 100 for r in results]
|
||
colors = ["#c45c4a" if r[1]["category"] == "虫害" else "#4a7c59" for r in results]
|
||
|
||
fig_bar = go.Figure()
|
||
fig_bar.add_trace(go.Bar(
|
||
x=sims,
|
||
y=names,
|
||
orientation="h",
|
||
marker=dict(color=colors, opacity=0.85, line=dict(color="rgba(0,0,0,0.08)", width=1)),
|
||
text=[f"{s:.1f}%" for s in sims],
|
||
textposition="outside",
|
||
textfont=dict(color="#5a5a5a", size=10),
|
||
))
|
||
fig_bar.update_layout(
|
||
xaxis=dict(title="相似度 (%)", color="#5a5a5a", gridcolor="rgba(0,0,0,0.06)", range=[0, 105]),
|
||
yaxis=dict(color="#5a5a5a", gridcolor="rgba(0,0,0,0.04)", autorange="reversed"),
|
||
paper_bgcolor="rgba(0,0,0,0)",
|
||
plot_bgcolor="rgba(0,0,0,0)",
|
||
font=dict(color="#2c2c2c", size=11),
|
||
margin=dict(t=10, b=30, l=80, r=50),
|
||
height=160 + len(results) * 34,
|
||
showlegend=False,
|
||
)
|
||
st.plotly_chart(fig_bar, use_container_width=True)
|
||
|
||
# Result cards below
|
||
st.markdown('<div class="section-header">📋 详细结果</div>', unsafe_allow_html=True)
|
||
for rank, (sim, item) in enumerate(results, 1):
|
||
with st.container():
|
||
st.markdown(f"""
|
||
<div class="result-card">
|
||
<div style="display:flex; gap:14px; align-items:flex-start;">
|
||
<div style="flex:0 0 140px;">
|
||
<img src="{item['url']}" style="width:100%; border-radius:10px; border:1px solid var(--border);">
|
||
</div>
|
||
<div style="flex:1;">
|
||
<div style="display:flex; align-items:center; margin-bottom:8px;">
|
||
<span class="result-rank">{rank}</span>
|
||
<span class="result-name">{item['name']}</span>
|
||
<span style="margin-left:auto;" class="result-score">相似度 {sim*100:.1f}%</span>
|
||
</div>
|
||
<div style="margin-bottom:8px;">
|
||
<span class="tag">{item['crop']}</span>
|
||
<span class="tag{' tag-warn' if item['category'] == '虫害' else ''}">{item['category']}</span>
|
||
</div>
|
||
<div style="font-size:0.88rem; color:var(--ink); line-height:1.6;">
|
||
<b>症状：</b>{item['symptoms']}<br>
|
||
<b>防治：</b>{item['treatment']}
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
""", unsafe_allow_html=True)
|
||
|
||
# Advisory summary
|
||
if results:
|
||
best = results[0][1]
|
||
st.markdown('<div class="section-header">💡 初步建议</div>', unsafe_allow_html=True)
|
||
st.markdown(f"""
|
||
<div class="info-panel" style="border-left:3px solid var(--leaf-light); border-radius:0 12px 12px 0;">
|
||
系统判断该图片与 <b>{best['name']}</b>（{best['crop']}{best['category']}）最为相似，相似度 <b>{results[0][0]*100:.1f}%</b>。<br>
|
||
建议结合田间实际情况进一步确认，参考防治方案：<b>{best['treatment']}</b>
|
||
</div>
|
||
""", unsafe_allow_html=True)
|
||
|
||
# ─── Footer ───────────────────────────────────────────────────────────────────
|
||
st.markdown("<br>", unsafe_allow_html=True)
|
||
st.markdown("""
|
||
<div style="text-align:center; font-size:0.78rem; color:#aaa; padding:14px; border-top:1px solid #e5e0d5;">
|
||
病虫害以图搜图 · 基于 CLIP 视觉模型 · 结果仅供参考，请结合田间实际情况判断
|
||
</div>
|
||
""", unsafe_allow_html=True)
|