以编程方式使用Google图片搜索

时间:2011-11-29 11:27:09

标签: c# windows-phone-7 google-image-search

我正在创建一个Windows Phone 7应用,我在手机中拍摄照片,并且必须在谷歌图片搜索上上传。

这是我到目前为止所理解的流程。

我们必须将图像作为byte []发布到url:https://www.google.com/searchbyimage/upload

参数是:

image_url

btnG    Search
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image_content   
filename    
hl  en
client  firefox-a
sa  N
rls org.mozilla:en-US:official
biw 1280
bih 335

然后它会自动获取图像的足迹并点击网址:

https://www.google.com/search?tbs=sbi:AMhZZiu_1yAwkNmGIvgyl9GPAFJIIcGNEgGbKu-2DBPorepQnuEtNw1QjGuUUP6AC6j1dpE5ZgksfjnobYOaevvreGlmF0DhTBnHctklgFJaL31aYis2uSPFQAjJ7h9VPXQORv4dfR-8TdG4mJTouAQpAcTlAGdtJ7kNAKRcoBRym35zp87xgJDWoyA99K_1FlKZi0MhAaOeFblCqqYt27n7VI1655d6bWd3XOUWYxkdTsTAyi7dKWtNyE34W3JADhKxrTw6CYnSzie-bERieBBDYMwH7C-7FIP-qcizEJ0ujyGpxOaGlynmRfVj2UNYZ9L-8l9ZRH0KB3VxGHTownyeEn4x1gffsqibJ2tDWOVP3vFE-Fte_13Gw-lDqA8SkXSQhnXl9rNX62oTHgQCGPvr39x9xnvD-dbIl2VzGE4fSb7k0spDW8fzGdQ5yyX8-jZk822FVue1t0qu3R6KSAiy7rsROGjzY3Jp0J4fYA6nRNwe6zo0_16MsOZXUc1a06LFDjpey5ToAkz8eY4pjvOeBKwKopMh3Sd_1486jyo52SM2-ChmZ1LYTJcjFvjhP0W_119Hqo8ejsnQIVAcvlyCc4hJdQcQKbEzWveBmWveEXCPChxTkgHaLidfnYTeN2kOdimZa1TZjNZLjJ4gKZFPsyJjnFA3M2z5ZsbAVvzrDrlksdXj2L3RwperxipZxzegujpLmd9lbkY7zfhNc6k9eyTd4QAgEGta-p-wNQasm8lAS_1M8ZFiRsFTEKEXTMIYSMUjoiZV4pgQBV4E5kobgOAd28XB9cyM8TObGW6idIM0B3hiBtiHwHXI5IUuuUAyv9KDt6X3Devx8wpSb5roo42nVsc72UnV62yLdRTUGqL5vAjjJOsGNNCygavDgLQo_12pBolsDwpSZtF7DYu0gDPWnmhy6hEnRtpGE5V-TcAX8vnwrqSKDGICtOJ1I9cUXXVsnoP7VDrtizU34LDnLSJrtRjBtDhHiZzyi5ROp4W3BDgnCqrcYK0hdRQ5nBQl9f_1hQ1C1zk8-SbhnWF71CiwLmuMBg5uukUArHD3iz37pcI3xjVRy_17NRRbO5Orw3kSG98cg2SBSoMxc9NoUjPcsPgliV6EzEZxUPMMEGQjj0DTqnPaor5W8k2dyZ_1tANb5tCfSe10ONFDuKo82wEpbipzNCFdZax2qIQg1_10psXZZDUbMdyHjjPcwC3cF7W1ezSFYvjJ9dCkR1wfa0QlUxuYgdb3msBvuxjqOr2tChDxY1TzK0ZTwMEfcj7mWIbTD561oGf54AK9NLFRhS3PQ7zhlazzjJxyKUn2uHuLcbGPq5BC954fghqcDGecbMixn6gDDL8rEAstu4rBCVsuDID-DcmrXg_1zh4WE58U8ZVbm4kDv0cJIvq5bE0ik8nYSPmgy10yP4ThUv1S8XpbV3VhRytLvK2TFjYT4BMvShIV4RyErsnSohsmSz8YBhJzJOhMFzhuTRrKOzuwIZz7mpgkC3oC9Qs6qXcqW5SJfKFEc4HluQvFpHgyenYlSf7MEaF93QL6xeVWUXkz-OsZwy5oJUJO-eg_1oUXC2ox9HdG6jOArcx1dWI2MOoNM94sL7yzu8_1VaBB_1vF8f7iiUMqukbUxRIAusOPLbFXFFUJFs0fm94Fj8Uk8_1KUoOI&btnG=Search&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1280&bih=335

其中tbs是保存图像足迹的变量。

我的代码:

WebClient webClient = new WebClient();
            webClient.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
            var uri = new Uri("https://www.google.com/searchbyimage/upload", UriKind.Absolute);
            StringBuilder postData = new StringBuilder();
            postData.AppendFormat("{0}={1}", "image_url", HttpUtility.UrlEncode(""));
            postData.AppendFormat("&{0}={1}", "btnG", HttpUtility.UrlEncode("Search"));
            postData.AppendFormat("&{0}={1}", "encoded_image", GetByteFromImage(e));
            postData.AppendFormat("{0}={1}", "image_content", HttpUtility.UrlEncode(""));
            postData.AppendFormat("&{0}={1}", "filename", HttpUtility.UrlEncode(""));

            webClient.Headers[HttpRequestHeader.ContentLength] = postData.Length.ToString();
            webClient.UploadStringCompleted += new UploadStringCompletedEventHandler(webClient_UploadStringCompleted);
            webClient.UploadStringAsync(uri, "POST", postData.ToString());

string GetByteFromImage(PhotoResult e)
    {
        byte[] imageBytes = new byte[e.ChosenPhoto.Length];
        //return imageBytes;
        return e.ChosenPhoto.Read(imageBytes, 0, imageBytes.Length).ToString(); //int
    }

我得到的回报是普通的Google主页:(

0 个答案:

没有答案