SQL Server

Google Vision Web Detection

See more Google Vision Examples

Demonstrates how to use the Cloud Cloud Vision API for the Web Detection method.

The Google Cloud Vision "web detection" API call performs web detection analysis on an image. When you send an image to the Vision API with the "web detection" feature enabled, the API returns information about web entities (objects, logos, landmarks, etc.) that are visually similar to objects in the image and are found on the web.

It includes:

• Entity Recognition: The API identifies entities (objects, landmarks, logos, etc.) present in the image and provides information about them. This can include labels, descriptions, and additional metadata.
• Web Pages: For recognized entities, the API retrieves information about web pages that contain visually similar images or information related to the entities found in the image.
• Matching Images: The API may return URLs of images found on the web that are visually similar to the objects in the image being analyzed.
• Best Guess Label: The API may also provide a "best guess" label or description for the image based on its analysis of the web entities.
• Related Web Entities: Additionally, the API may return related web entities or concepts that are semantically related to the recognized objects.

Overall, the web detection feature of the Google Cloud Vision API allows you to perform reverse image search-like functionality, identifying objects in an image and providing information about similar objects found on the web. This can be useful for tasks such as image classification, content moderation, and visual search applications.

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-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- The following JSON is sent in the request body.

    -- {
    --   "requests": [
    --     {
    --       "image": {
    --         "source": {
    --           "imageUri": "gs://visionapi-demo/ali.jpg"
    --         }
    --       },
    --       "features": [
    --         {
    --           "maxResults": 10,
    --           "type": "WEB_DETECTION"
    --         }
    --       ]
    --     }
    --   ]
    -- }

    -- The following code creates the JSON request body.
    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'requests[0].image.source.imageUri', 'gs://visionapi-demo/ali.jpg'
    EXEC sp_OAMethod @json, 'UpdateInt', @success OUT, 'requests[0].features[0].maxResults', 10
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'requests[0].features[0].type', 'WEB_DETECTION'

    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpJson', @success OUT, 'POST', 'https://vision.googleapis.com/v1/images:annotate?key=your-api-key-here', @json, 'application/json', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    DECLARE @jResp int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jResp OUT

    EXEC sp_OAMethod @resp, 'GetBodyJson', @success OUT, @jResp
    EXEC sp_OASetProperty @jResp, 'EmitCompact', 0


    PRINT 'Response Body:'
    EXEC sp_OAMethod @jResp, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @resp, 'StatusCode', @respStatusCode OUT

    PRINT 'Response Status Code = ' + @respStatusCode
    IF @respStatusCode >= 400
      BEGIN

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @resp, 'Header', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed.'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @resp
        EXEC @hr = sp_OADestroy @jResp
        RETURN
      END

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @resp
    EXEC @hr = sp_OADestroy @jResp


END
GO