記一次使用阿裡雲圖像搜尋功能

阿裡雲提供的圖像搜尋業務：

業務介紹位址：

https://ai.aliyun.com/imagesearch?spm=5176.10695662.1280361.130.11a61e6d5n1K8L

提供兩種服務：

• 商品圖像搜尋；
• 通用圖像搜尋；

開發文檔

文檔位址：

https://help.aliyun.com/document_detail/66616.html

目前在該頁支援的sdk有：

• Java
• Nodejs
• PHP

從文檔來看使用起來十分複雜，想用python實作的話，借鑒這份資料真是費了很大力氣，一直沒有跑通，提示建構的簽名與它計算的簽名不比對。

後面找尋python sdk。

python sdk使用指南

https://help.aliyun.com/document_detail/67117.html

按照這個介紹，自己安裝了核心庫，并歪打正着的通過pip安裝找到了該服務的隐藏python sdk！

pip install aliyun-python-sdk-imagesearch           

然後去aliyun的gihub頁面找相關的包介紹：

https://github.com/aliyun/aliyun-openapi-python-sdk/tree/master/aliyun-python-sdk-imagesearch

介紹不是很詳細，也花了一天的時間試錯。

最終調通，該sdk對python3目前也不支援，卡在字元串編碼這塊，後續應該會解決這個問題。

使用該sdk，更改下包的源碼（base64編碼的字元串問題），在python3下跑通整個過程，上傳圖檔，删除圖檔以及搜尋圖檔。

Add_item

#!/usr/bin/env python
# fileUsing: test ali api 's add item

from aliyunsdkcore.client import AcsClient
from aliyunsdkimagesearch.request.v20180120.AddItemRequest import AddItemRequest
import sys

# set parameters
accessKeyId = 'xxx'
accessKeySecret = 'xxx'
instanceName = 'xxx'
regionId = 'cn-shanghai'
domain = 'imagesearch.cn-shanghai.aliyuncs.com'

client = AcsClient(accessKeyId, accessKeySecret, regionId)
add_req = AddItemRequest()


def add_img(img_path):
    """ add img """
    pid = img_path.split('/')[-1].split('_')[0]
    item_id = pid
    cust_content = pid
    cate_id = '0'
    pic_name = pid
    pic_content = open(img_path, 'rb').read()
    add_req.set_instance_name(instanceName)
    add_req.set_item_id(item_id)
    add_req.set_cate_id(cate_id)
    add_req.set_cust_content(cust_content)
    add_req.add_picture(pic_name, pic_content)
    process_flag = add_req.build_post_content()
    response = client.do_action_with_exception(add_req)
    print(response.decode('utf8'))


# test
img_path = sys.argv[1]
add_img(img_path)           

Del_item

#!/usr/bin/env python
# fileUsing: test ali api 's del item

from aliyunsdkcore.client import AcsClient
from aliyunsdkimagesearch.request.v20180120.DeleteItemRequest import DeleteItemRequest
import sys

# set parameters
accessKeyId = 'xxx'
accessKeySecret = 'xxxx'
instanceName = 'xxxxx'
regionId = 'cn-shanghai'
domain = 'imagesearch.cn-shanghai.aliyuncs.com'

client = AcsClient(accessKeyId, accessKeySecret, regionId)
del_req = DeleteItemRequest()


def del_img(img_path):
    """ del img """
    pid = img_path.split('/')[-1].split('_')[0]
    item_id = pid
    pic_name = pid

    del_req.set_instance_name(instanceName)
    del_req.set_item_id(item_id)
    del_req.add_picture(pic_name)
    process_flag = del_req.build_post_content()
    response = client.do_action_with_exception(del_req)
    print(response.decode('utf8'))


# test
img_path = sys.argv[1]
del_img(img_path)           

Search_item

#!/usr/bin/env python
# fileUsing: test ali api 's search item

from aliyunsdkcore.client import AcsClient
from aliyunsdkimagesearch.request.v20180120.SearchItemRequest import SearchItemRequest
import sys

# set parameters
accessKeyId = 'xxx'
accessKeySecret = 'xxxx'
instanceName = 'xxxx'
regionId = 'cn-shanghai'
domain = 'imagesearch.cn-shanghai.aliyuncs.com'

client = AcsClient(accessKeyId, accessKeySecret, regionId)
search_req = SearchItemRequest()


def search_img(img_path):
    """ search img """
    pid = img_path.split('/')[-1].split('_')[0]
    pic_content = open(img_path, 'rb').read()
    search_req.set_instance_name(instanceName)
    search_req.set_num(100)  # return nums of search
    search_req.set_search_picture(pic_content)
    process_flag = search_req.build_post_content()
    response = client.do_action_with_exception(search_req)
    print(response.decode('utf8'))


# test
img_path = sys.argv[1]
search_img(img_path)           

源碼更改地方

encoded_pic_name = str(base64.b64encode(bytes(pic_name, 'utf-8')), encoding='utf-8')
encoded_pic_content = base64.b64encode(pic_content).decode('utf8')