腾讯云对象存储二维码识别

简介

本文档提供关于图片二维码相关的 API 概览以及 SDK 示例代码。

二维码识别

二维码识别功能可识别图片中有效二维码的位置及内容，输出图像中二维码包含的文本信息（每个二维码对应的 URL 或文本），并可对识别出的二维码添加马赛克。

上传时识别

方法原型

cos_status_t *ci_put_object_from_file(const cos_request_options_t *options,                                         const cos_string_t *bucket,                                          const cos_string_t *object,                                          const cos_string_t *filename,                                         cos_table_t *headers,                                          cos_table_t **resp_headers,                                         ci_operation_result_t **results)

功能说明

图片上传时识别二维码的请求包与 COS 简单上传文件接口一致，只需在请求包头部增加图片处理参数 Pic-Operations。

请求示例

#include "cos_http_io.h"#include "cos_api.h"#include "cos_log.h"#include 
// endpoint 是 COS 访问域名信息，详情请参见 https://cloud.tencent.com/document/product/436/6224 文档static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";// 数据万象的访问域名，详情请参见 https://cloud.tencent.com/document/product/460/31066 文档static char TEST_CI_ENDPOINT[] = "https://ci.ap-guangzhou.myqcloud.com";// 开发者拥有的项目身份ID/密钥，可在 https://console.cloud.tencent.com/cam/capi 页面获取static char *TEST_ACCESS_KEY_ID;                //your secret_idstatic char *TEST_ACCESS_KEY_SECRET;            //your secret_key// 开发者访问 COS 服务时拥有的用户维度唯一资源标识，用以标识资源，可在 https://console.cloud.tencent.com/cam/capi 页面获取static char TEST_APPID[] = "";    //your appid//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666，可在 https://console.cloud.tencent.com/cos5/bucket 查看static char TEST_BUCKET_NAME[] = ""; 
void log_status(cos_status_t *s){    cos_warn_log("status->code: %d", s->code);    if (s->error_code) cos_warn_log("status->error_code: %s", s->error_code);    if (s->error_msg) cos_warn_log("status->error_msg: %s", s->error_msg);    if (s->req_id) cos_warn_log("status->req_id: %s", s->req_id);}
void init_test_config(cos_config_t *config, int is_cname){    cos_str_set(&config->endpoint, TEST_COS_ENDPOINT);    cos_str_set(&config->access_key_id, TEST_ACCESS_KEY_ID);    cos_str_set(&config->access_key_secret, TEST_ACCESS_KEY_SECRET);    cos_str_set(&config->appid, TEST_APPID);    config->is_cname = is_cname;}
void init_test_request_options(cos_request_options_t *options, int is_cname){    options->config = cos_config_create(options->pool);    init_test_config(options->config, is_cname);    options->ctl = cos_http_controller_create(options->pool, 0);}
void test_ci_image_qrcode(){    cos_pool_t *p = NULL;    int is_cname = 0;    cos_status_t *s = NULL;    cos_request_options_t *options = NULL;    cos_string_t bucket;    cos_string_t object;    cos_string_t file;    cos_table_t *resp_headers;    cos_table_t *headers = NULL;    ci_operation_result_t *results = NULL;    ci_qrcode_info_t *content = NULL;
    cos_pool_create(&p, NULL);    options = cos_request_options_create(p);    init_test_request_options(options, is_cname);    cos_str_set(&bucket, TEST_BUCKET_NAME);    cos_str_set(&object, "test.jpg");
    headers = cos_table_make(p, 1);    apr_table_addn(headers, "pic-operations", "{\"is_pic_info\":1,\"rules\":[{\"fileid\":\"test.png\",\"rule\":\"QRcode/cover/1\"}]}");    // 上传时识别    cos_str_set(&file, "test.jpg");    cos_str_set(&object, "test.jpg");    s = ci_put_object_from_file(options, &bucket, &object, &file, headers, &resp_headers, &results);    log_status(s);    if (!cos_status_is_ok(s)) {        printf("put object failed\n");    }    printf("CodeStatus: %d\n", results->object.code_status);    cos_list_for_each_entry(ci_qrcode_info_t, content, &results->object.qrcode_info, node) {        printf("CodeUrl: %s\n", content->code_url.data);        printf("Point: %s\n", content->point[0].data);        printf("Point: %s\n", content->point[1].data);        printf("Point: %s\n", content->point[2].data);        printf("Point: %s\n", content->point[3].data);    }
    //销毁内存池    cos_pool_destroy(p); }
int main(int argc, char *argv[]){    // 通过环境变量获取 SECRETID 和 SECRETKEY    TEST_ACCESS_KEY_ID     = getenv("COS_SECRETID");    TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {       exit(1);    }
    //set log level, default COS_LOG_WARN    cos_log_set_level(COS_LOG_WARN);
    //set log output, default stderr    cos_log_set_output(NULL);
    test_ci_image_qrcode();
    cos_http_io_deinitialize();
    return 0;}

参数说明

下载时识别

功能说明

下载文件时进行二维码识别。

方法原型

cos_status_t *ci_get_qrcode(const cos_request_options_t *options,                             const cos_string_t *bucket,                             const cos_string_t *object,                             int cover,                             cos_table_t *headers,                             cos_table_t *query_params,                              cos_table_t **resp_headers,                             ci_qrcode_result_t **results)

请求示例

#include "cos_http_io.h"#include "cos_api.h"#include "cos_log.h"#include 
// endpoint 是 COS 访问域名信息，详情请参见 https://cloud.tencent.com/document/product/436/6224 文档static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";// 数据万象的访问域名，详情请参见 https://cloud.tencent.com/document/product/460/31066 文档static char TEST_CI_ENDPOINT[] = "https://ci.ap-guangzhou.myqcloud.com";// 开发者拥有的项目身份ID/密钥，可在 https://console.cloud.tencent.com/cam/capi 页面获取static char *TEST_ACCESS_KEY_ID;                //your secret_idstatic char *TEST_ACCESS_KEY_SECRET;            //your secret_key// 开发者访问 COS 服务时拥有的用户维度唯一资源标识，用以标识资源，可在 https://console.cloud.tencent.com/cam/capi 页面获取static char TEST_APPID[] = "";    //your appid//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666，可在 https://console.cloud.tencent.com/cos5/bucket 查看static char TEST_BUCKET_NAME[] = ""; 
void log_status(cos_status_t *s){    cos_warn_log("status->code: %d", s->code);    if (s->error_code) cos_warn_log("status->error_code: %s", s->error_code);    if (s->error_msg) cos_warn_log("status->error_msg: %s", s->error_msg);    if (s->req_id) cos_warn_log("status->req_id: %s", s->req_id);}
void init_test_config(cos_config_t *config, int is_cname){    cos_str_set(&config->endpoint, TEST_COS_ENDPOINT);    cos_str_set(&config->access_key_id, TEST_ACCESS_KEY_ID);    cos_str_set(&config->access_key_secret, TEST_ACCESS_KEY_SECRET);    cos_str_set(&config->appid, TEST_APPID);    config->is_cname = is_cname;}
void init_test_request_options(cos_request_options_t *options, int is_cname){    options->config = cos_config_create(options->pool);    init_test_config(options->config, is_cname);    options->ctl = cos_http_controller_create(options->pool, 0);}
void test_ci_get_image_qrcode(){    cos_pool_t *p = NULL;    int is_cname = 0;    cos_status_t *s = NULL;    cos_request_options_t *options = NULL;    cos_string_t bucket;    cos_string_t object;    cos_table_t *resp_headers;    ci_qrcode_info_t *content = NULL;    ci_qrcode_result_t *result2 = NULL;
    cos_pool_create(&p, NULL);    options = cos_request_options_create(p);    init_test_request_options(options, is_cname);    cos_str_set(&bucket, TEST_BUCKET_NAME);    cos_str_set(&object, "test.jpg");
    // 下载时识别    s = ci_get_qrcode(options, &bucket, &object, 1, NULL, NULL, &resp_headers, &result2);    log_status(s);    if (!cos_status_is_ok(s)) {        printf("get object failed\n");    }    printf("CodeStatus: %d\n", result2->code_status);    cos_list_for_each_entry(ci_qrcode_info_t, content, &result2->qrcode_info, node) {        printf("CodeUrl: %s\n", content->code_url.data);        printf("Point: %s\n", content->point[0].data);        printf("Point: %s\n", content->point[1].data);        printf("Point: %s\n", content->point[2].data);        printf("Point: %s\n", content->point[3].data);    }    printf("ImageResult: %s\n", result2->result_image.data);
    //销毁内存池    cos_pool_destroy(p); }
int main(int argc, char *argv[]){    // 通过环境变量获取 SECRETID 和 SECRETKEY    TEST_ACCESS_KEY_ID     = getenv("COS_SECRETID");    TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {       exit(1);    }
    //set log level, default COS_LOG_WARN    cos_log_set_level(COS_LOG_WARN);
    //set log output, default stderr    cos_log_set_output(NULL);
    test_ci_get_image_qrcode();
    cos_http_io_deinitialize();
    return 0;}

参数说明



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