基于 Serverless 架構(gòu)的頭像漫畫(huà)風(fēng)處理小程序
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我一直都想要有一個(gè)漫畫(huà)版的頭像，奈何手太笨，用了很多軟件 “捏不出來(lái)”，所以就在想著，是否可以基于 AI 實(shí)現(xiàn)這個(gè)功能，并部署到 Serverless 架構(gòu)上讓更多人來(lái)嘗試使用呢？
項(xiàng)目開(kāi)發(fā)
「01」
后端項(xiàng)目
from PIL import Image
import io
import torch
import base64
import bottle
import random
import json
cacheDir = '/tmp/'
modelDir = './model/bryandlee_animegan2-pytorch_main'
getModel = lambda modelName: torch.hub.load(modelDir, "generator", pretrained=modelName, source='local')
models = {
'celeba_distill': getModel('celeba_distill'),
'face_paint_512_v1': getModel('face_paint_512_v1'),
'face_paint_512_v2': getModel('face_paint_512_v2'),
'paprika': getModel('paprika')
}
randomStr = lambda num=5: "".join(random.sample('abcdefghijklmnopqrstuvwxyz', num))
face2paint = torch.hub.load(modelDir, "face2paint", size=512, source='local')
@bottle.route('/images/comic_style', method='POST')
def getComicStyle():
result = {}
try:
postData = json.loads(bottle.request.body.read().decode("utf-8"))
style = postData.get("style", 'celeba_distill')
image = postData.get("image")
localName = randomStr(10)
# 圖片獲取
imagePath = cacheDir + localName
with open(imagePath, 'wb') as f:
f.write(base64.b64decode(image))
# 內(nèi)容預(yù)測(cè)
model = models[style]
imgAttr = Image.open(imagePath).convert("RGB")
outAttr = face2paint(model, imgAttr)
img_buffer = io.BytesIO()
outAttr.save(img_buffer, format='JPEG')
byte_data = img_buffer.getvalue()
img_buffer.close()
result["photo"] = 'data:image/jpg;base64, %s' % base64.b64encode(byte_data).decode()
except Exception as e:
print("ERROR: ", e)
result["error"] = True
return result
app = bottle.default_app()
if __name__ == "__main__":
bottle.run(host='localhost', port=8099)實(shí)例初始化的時(shí)候，進(jìn)行模型的加載，已經(jīng)可能的減少頻繁的冷啟動(dòng)帶來(lái)的影響情況； 在函數(shù)模式下，往往只有
/tmp目錄是可寫的，所以圖片會(huì)被緩存到/tmp目錄下；雖然說(shuō)函數(shù)計(jì)算是“無(wú)狀態(tài)”的，但是實(shí)際上也有復(fù)用的情況，所有數(shù)據(jù)在存儲(chǔ)到
tmp的時(shí)候進(jìn)行了隨機(jī)命名；雖然部分云廠商支持二進(jìn)制的文件上傳，但是大部分的 Serverless 架構(gòu)對(duì)二進(jìn)制上傳支持的并不友好，所以這里依舊采用 Base64 上傳的方案；
import bottle
@bottle.route('/system/styles', method='GET')
def styles():
return {
"AI動(dòng)漫風(fēng)": {
'color': 'red',
'detailList': {
"風(fēng)格1": {
'uri': "images/comic_style",
'name': 'celeba_distill',
'color': 'orange',
'preview': 'https://serverless-article-picture.oss-cn-hangzhou.aliyuncs.com/1647773808708_20220320105649389392.png'
},
"風(fēng)格2": {
'uri': "images/comic_style",
'name': 'face_paint_512_v1',
'color': 'blue',
'preview': 'https://serverless-article-picture.oss-cn-hangzhou.aliyuncs.com/1647773875279_20220320105756071508.png'
},
"風(fēng)格3": {
'uri': "images/comic_style",
'name': 'face_paint_512_v2',
'color': 'pink',
'preview': 'https://serverless-article-picture.oss-cn-hangzhou.aliyuncs.com/1647773926924_20220320105847286510.png'
},
"風(fēng)格4": {
'uri': "images/comic_style",
'name': 'paprika',
'color': 'cyan',
'preview': 'https://serverless-article-picture.oss-cn-hangzhou.aliyuncs.com/1647773976277_20220320105936594662.png'
},
}
},
}
app = bottle.default_app()
if __name__ == "__main__":
bottle.run(host='localhost', port=8099)AI 模型加載速度慢，如果把獲取AI處理列表的接口集成進(jìn)去，勢(shì)必會(huì)影響該接口的性能； AI 模型所需配置的內(nèi)存會(huì)比較多，而獲取 AI 處理列表的接口所需要的內(nèi)存非常少，而內(nèi)存會(huì)和計(jì)費(fèi)有一定的關(guān)系，所以分開(kāi)有助于成本的降低；
模型所需要的依賴，可能涉及到一些二進(jìn)制編譯的過(guò)程，所以導(dǎo)致無(wú)法直接跨平臺(tái)使用； 模型文件比較大 （單純的 Pytorch 就超過(guò) 800M），函數(shù)計(jì)算的上傳代碼最多才 100M，所以這個(gè)項(xiàng)目無(wú)法直接上傳；
請(qǐng)參考：
https://www.serverless-devs.com/fc/yaml/readme
完成 s.yaml 的編寫：
edition: 1.0.0
name: start-ai
access: "default"
vars: # 全局變量
region: cn-hangzhou
service:
name: ai
nasConfig: # NAS配置, 配置后function可以訪問(wèn)指定NAS
userId: 10003 # userID, 默認(rèn)為10003
groupId: 10003 # groupID, 默認(rèn)為10003
mountPoints: # 目錄配置
- serverAddr: 0fe764bf9d-kci94.cn-hangzhou.nas.aliyuncs.com # NAS 服務(wù)器地址
nasDir: /python3
fcDir: /mnt/python3
vpcConfig:
vpcId: vpc-bp1rmyncqxoagiyqnbcxk
securityGroupId: sg-bp1dpxwusntfryekord6
vswitchIds:
- vsw-bp1wqgi5lptlmk8nk5yi0
services:
image:
component: fc
props: # 組件的屬性值
region: ${vars.region}
service: ${vars.service}
function:
name: image_server
description: 圖片處理服務(wù)
runtime: python3
codeUri: ./
ossBucket: temp-code-cn-hangzhou
handler: index.app
memorySize: 3072
timeout: 300
environmentVariables:
PYTHONUSERBASE: /mnt/python3/python
triggers:
- name: httpTrigger
type: http
config:
authType: anonymous
methods:
- GET
- POST
- PUT
customDomains:
- domainName: avatar.aialbum.net
protocol: HTTP
routeConfigs:
- path: /*然后進(jìn)行：
s build --use-dockers deploys nas command mkdir /mnt/python3/python
s nas upload -r 本地依賴路徑 /mnt/python3/python另外，微信小程序需要 https 的后臺(tái)接口，所以這里還需要配置 https 相關(guān)的證書(shū)信息，此處不做展開(kāi)。
「02」
小程序項(xiàng)目
<scroll-view scroll-y class="scrollPage">
<image src='/images/topbg.jpg' mode='widthFix' class='response'></image>
<view class="cu-bar bg-white solid-bottom margin-top">
<view class="action">
<text class="cuIcon-title text-blue"></text>第一步：選擇圖片
</view>
</view>
<view class="padding bg-white solid-bottom">
<view class="flex">
<view class="flex-sub bg-grey padding-sm margin-xs radius text-center" bindtap="chosePhoto">本地上傳圖片</view>
<view class="flex-sub bg-grey padding-sm margin-xs radius text-center" bindtap="getUserAvatar">獲取當(dāng)前頭像</view>
</view>
</view>
<view class="padding bg-white" hidden="{{!userChosePhoho}}">
<view class="images">
<image src="{{userChosePhoho}}" mode="widthFix" bindtap="previewImage" bindlongpress="editImage" data-image="{{userChosePhoho}}"></image>
</view>
<view class="text-right padding-top text-gray">* 點(diǎn)擊圖片可預(yù)覽，長(zhǎng)按圖片可編輯</view>
</view>
<view class="cu-bar bg-white solid-bottom margin-top">
<view class="action">
<text class="cuIcon-title text-blue"></text>第二步：選擇圖片處理方案
</view>
</view>
<view class="bg-white">
<scroll-view scroll-x class="bg-white nav">
<view class="flex text-center">
<view class="cu-item flex-sub {{style==currentStyle?'text-orange cur':''}}" wx:for="{{styleList}}"
wx:for-index="style" bindtap="changeStyle" data-style="{{style}}">
{{style}}
</view>
</view>
</scroll-view>
</view>
<view class="padding-sm bg-white solid-bottom">
<view class="cu-avatar round xl bg-{{item.color}} margin-xs" wx:for="{{styleList[currentStyle].detailList}}"
wx:for-index="substyle" bindtap="changeStyle" data-substyle="{{substyle}}" bindlongpress="showModal" data-target="Image">
<view class="cu-tag badge cuIcon-check bg-grey" hidden="{{currentSubStyle == substyle ? false : true}}"></view>
<text class="avatar-text">{{substyle}}</text>
</view>
<view class="text-right padding-top text-gray">* 長(zhǎng)按風(fēng)格圓圈可以預(yù)覽模板效果</view>
</view>
<view class="padding-sm bg-white solid-bottom">
<button class="cu-btn block bg-blue margin-tb-sm lg" bindtap="getNewPhoto" disabled="{{!userChosePhoho}}"
type="">{{ userChosePhoho ? (getPhotoStatus ? 'AI將花費(fèi)較長(zhǎng)時(shí)間' : '生成圖片') : '請(qǐng)先選擇圖片' }}</button>
</view>
<view class="cu-bar bg-white solid-bottom margin-top" hidden="{{!resultPhoto}}">
<view class="action">
<text class="cuIcon-title text-blue"></text>生成結(jié)果
</view>
</view>
<view class="padding-sm bg-white solid-bottom" hidden="{{!resultPhoto}}">
<view wx:if="{{resultPhoto == 'error'}}">
<view class="text-center padding-top">服務(wù)暫時(shí)不可用，請(qǐng)稍后重試</view>
<view class="text-center padding-top">或聯(lián)系開(kāi)發(fā)者微信：<text class="text-blue" data-data="zhihuiyushaiqi" bindtap="copyData">zhihuiyushaiqi</text></view>
</view>
<view wx:else>
<view class="images">
<image src="{{resultPhoto}}" mode="aspectFit" bindtap="previewImage" bindlongpress="saveImage" data-image="{{resultPhoto}}"></image>
</view>
<view class="text-right padding-top text-gray">* 點(diǎn)擊圖片可預(yù)覽，長(zhǎng)按圖片可保存</view>
</view>
</view>
<view class="padding bg-white margin-top margin-bottom">
<view class="text-center">自豪的采用 Serverless Devs 搭建</view>
<view class="text-center">Powered By Anycodes <text bindtap="showModal" class="text-cyan" data-target="Modal">{{"<"}}作者的話{{">"}}</text></view>
</view>
<view class="cu-modal {{modalName=='Modal'?'show':''}}">
<view class="cu-dialog">
<view class="cu-bar bg-white justify-end">
<view class="content">作者的話</view>
<view class="action" bindtap="hideModal">
<text class="cuIcon-close text-red"></text>
</view>
</view>
<view class="padding-xl text-left">
大家好，我是劉宇，很感謝您可以關(guān)注和使用這個(gè)小程序，這個(gè)小程序是我用業(yè)余時(shí)間做的一個(gè)頭像生成小工具，基于“人工智障”技術(shù)，反正現(xiàn)在怎么看怎么別扭，但是我會(huì)努力讓這小程序變得“智能”起來(lái)的。如果你有什么好的意見(jiàn)也歡迎聯(lián)系我<text class="text-blue" data-data="[email protected]" bindtap="copyData">郵箱</text>或者<text class="text-blue" data-data="zhihuiyushaiqi" bindtap="copyData">微信</text>，另外值得一提的是，本項(xiàng)目基于阿里云Serverless架構(gòu)，通過(guò)Serverless Devs開(kāi)發(fā)者工具建設(shè)。
</view>
</view>
</view>
<view class="cu-modal {{modalName=='Image'?'show':''}}">
<view class="cu-dialog">
<view class="bg-img" style="background-image: url("{{previewStyle}}");height:200px;">
<view class="cu-bar justify-end text-white">
<view class="action" bindtap="hideModal">
<text class="cuIcon-close "></text>
</view>
</view>
</view>
<view class="cu-bar bg-white">
<view class="action margin-0 flex-sub solid-left" bindtap="hideModal">關(guān)閉預(yù)覽</view>
</view>
</view>
</view>
</scroll-view>// index.js
// 獲取應(yīng)用實(shí)例
const app = getApp()
Page({
data: {
styleList: {},
currentStyle: "動(dòng)漫風(fēng)",
currentSubStyle: "v1模型",
userChosePhoho: undefined,
resultPhoto: undefined,
previewStyle: undefined,
getPhotoStatus: false
},
// 事件處理函數(shù)
bindViewTap() {
wx.navigateTo({
url: '../logs/logs'
})
},
onLoad() {
const that = this
wx.showLoading({
title: '加載中',
})
app.doRequest(`system/styles`, {}, option = {
method: "GET"
}).then(function (result) {
wx.hideLoading()
that.setData({
styleList: result,
currentStyle: Object.keys(result)[0],
currentSubStyle: Object.keys(result[Object.keys(result)[0]].detailList)[0],
})
})
},
changeStyle(attr) {
this.setData({
"currentStyle": attr.currentTarget.dataset.style || this.data.currentStyle,
"currentSubStyle": attr.currentTarget.dataset.substyle || Object.keys(this.data.styleList[attr.currentTarget.dataset.style].detailList)[0]
})
},
chosePhoto() {
const that = this
wx.chooseImage({
count: 1,
sizeType: ['compressed'],
sourceType: ['album', 'camera'],
complete(res) {
that.setData({
userChosePhoho: res.tempFilePaths[0],
resultPhoto: undefined
})
}
})
},
headimgHD(imageUrl) {
imageUrl = imageUrl.split('/'); //把頭像的路徑切成數(shù)組
//把大小數(shù)值為 46 || 64 || 96 || 132 的轉(zhuǎn)換為0
if (imageUrl[imageUrl.length - 1] && (imageUrl[imageUrl.length - 1] == 46 || imageUrl[imageUrl.length - 1] == 64 || imageUrl[imageUrl.length - 1] == 96 || imageUrl[imageUrl.length - 1] == 132)) {
imageUrl[imageUrl.length - 1] = 0;
}
imageUrl = imageUrl.join('/'); //重新拼接為字符串
return imageUrl;
},
getUserAvatar() {
const that = this
wx.getUserProfile({
desc: "獲取您的頭像",
success(res) {
const newAvatar = that.headimgHD(res.userInfo.avatarUrl)
wx.getImageInfo({
src: newAvatar,
success(res) {
that.setData({
userChosePhoho: res.path,
resultPhoto: undefined
})
}
})
}
})
},
previewImage(e) {
wx.previewImage({
urls: [e.currentTarget.dataset.image]
})
},
editImage() {
const that = this
wx.editImage({
src: this.data.userChosePhoho,
success(res) {
that.setData({
userChosePhoho: res.tempFilePath
})
}
})
},
getNewPhoto() {
const that = this
wx.showLoading({
title: '圖片生成中',
})
this.setData({
getPhotoStatus: true
})
app.doRequest(this.data.styleList[this.data.currentStyle].detailList[this.data.currentSubStyle].uri, {
style: this.data.styleList[this.data.currentStyle].detailList[this.data.currentSubStyle].name,
image: wx.getFileSystemManager().readFileSync(this.data.userChosePhoho, "base64")
}, option = {
method: "POST"
}).then(function (result) {
wx.hideLoading()
that.setData({
resultPhoto: result.error ? "error" : result.photo,
getPhotoStatus: false
})
})
},
saveImage() {
wx.saveImageToPhotosAlbum({
filePath: this.data.resultPhoto,
success(res) {
wx.showToast({
title: "保存成功"
})
},
fail(res) {
wx.showToast({
title: "異常，稍后重試"
})
}
})
},
onShareAppMessage: function () {
return {
title: "頭頭是道個(gè)性頭像",
}
},
onShareTimeline() {
return {
title: "頭頭是道個(gè)性頭像",
}
},
showModal(e) {
if(e.currentTarget.dataset.target=="Image"){
const previewSubStyle = e.currentTarget.dataset.substyle
const previewSubStyleUrl = this.data.styleList[this.data.currentStyle].detailList[previewSubStyle].preview
if(previewSubStyleUrl){
this.setData({
previewStyle: previewSubStyleUrl
})
}else{
wx.showToast({
title: "暫無(wú)模板預(yù)覽",
icon: "error"
})
return
}
}
this.setData({
modalName: e.currentTarget.dataset.target
})
},
hideModal(e) {
this.setData({
modalName: null
})
},
copyData(e) {
wx.setClipboardData({
data: e.currentTarget.dataset.data,
success(res) {
wx.showModal({
title: '復(fù)制完成',
content: `已將${e.currentTarget.dataset.data}復(fù)制到了剪切板`,
})
}
})
},
})
因?yàn)轫?xiàng)目會(huì)請(qǐng)求比較多次的后臺(tái)接口，所以，我將請(qǐng)求方法進(jìn)行額外的抽象：
// 統(tǒng)一請(qǐng)求接口
doRequest: async function (uri, data, option) {
const that = this
return new Promise((resolve, reject) => {
wx.request({
url: that.url + uri,
data: data,
header: {
"Content-Type": 'application/json',
},
method: option && option.method ? option.method : "POST",
success: function (res) {
resolve(res.data)
},
fail: function (res) {
reject(null)
}
})
})
}
完成之后配置一下后臺(tái)接口，發(fā)布審核即可。
項(xiàng)目體驗(yàn)
RECRUITMENT
極速上手 Serverless
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