|
Chilkat • HOME • .NET Core C# • Android™ • AutoIt • C • C# • C++ • Chilkat2-Python • CkPython • Classic ASP • DataFlex • Delphi ActiveX • Delphi DLL • Go • Java • Lianja • Mono C# • Node.js • Objective-C • PHP ActiveX • PHP Extension • Perl • PowerBuilder • PowerShell • PureBasic • Ruby • SQL Server • Swift 2 • Swift 3,4,5... • Tcl • Unicode C • Unicode C++ • VB.NET • VBScript • Visual Basic 6.0 • Visual FoxPro • Xojo Plugin
(Classic ASP) Google Cloud Vision Text DetectionDemonstrates calling the Google Cloud Vision for text detection (performs Optical Character Recognition). "Detects and extracts text within an image with support for a broad range of languages. It also features automatic language identification." See https://cloud.google.com/vision/docs/detecting-text
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. ' Build the following request: ' { ' "requests": [ ' { ' "image": { ' "content": "/9j/7QBEUGhvdG9zaG9...base64-encoded-image-content...fXNWzvDEeYxxxzj/Coa6Bax//Z" ' }, ' "features": [ ' { ' "type": "TEXT_DETECTION" ' } ' ] ' } ' ] ' } ' Use this online tool to generate the code from sample JSON: ' Generate Code to Create JSON ' Load an image file. ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData") set imageData = Server.CreateObject("Chilkat.BinData") ' This image file contains some text... success = imageData.LoadFile("qa_data/jpg/text.jpg") If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( "Failed to load image file.") & "</pre>" Response.End End If ' Create the above JSON. ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject") set json = Server.CreateObject("Chilkat.JsonObject") success = json.UpdateBd("requests[0].image.content","base64",imageData) success = json.UpdateString("requests[0].features[0].type","TEXT_DETECTION") ' Send the following POST with the HTTP request body containing the above JSON. ' POST https://vision.googleapis.com/v1/images:annotate?key=YOUR_API_KEY ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http") set http = Server.CreateObject("Chilkat.Http") http.SessionLogFilename = "c:/aaworkarea/sessionLog.txt" ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sb = Server.CreateObject("Chilkat.StringBuilder") url = "https://vision.googleapis.com/v1/images:annotate?key=YOUR_API_KEY" ' resp is a Chilkat.HttpResponse Set resp = http.PostJson3(url,"application/json",json) If (http.LastMethodSuccess <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>" Response.End End If Response.Write "<pre>" & Server.HTMLEncode( "status = " & resp.StatusCode) & "</pre>" ' A 200 response status indicate success. If (resp.StatusCode <> 200) Then Response.Write "<pre>" & Server.HTMLEncode( resp.BodyStr) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>" Response.End End If ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sbResponseBody = Server.CreateObject("Chilkat.StringBuilder") success = resp.GetBodySb(sbResponseBody) success = sbResponseBody.WriteFile("qa_output/textDetectResponse.json","utf-8",0) success = json.LoadSb(sbResponseBody) ' The response is a JSON document like this: ' Use this online tool to generate parsing code from sample JSON: ' Generate Parsing Code from JSON ' { ' "responses": [ ' { ' "textAnnotations": [ ' { ' "locale": "en", ' "description": "Chilkat is a cross-language, cross-platform\nAPl providing 90+ classes for many Internet\nprotocols, formats, and algorithms.\n", ' "boundingPoly": { ' "vertices": [ ' { ' "x": 17, ' "y": 14 ' }, ' ... ' ] ' } ' ], ' "text": "Chilkat is a cross-language, cross-platform\nAPl providing 90+ classes for many Internet\nprotocols, formats, and algorithms.\n" ' } ' } ' ] ' } ' The parsing code generated from the online tool: i = 0 count_i = json.SizeOfArray("responses") Do While i < count_i json.I = i fullTextAnnotationText = json.StringOf("responses[i].fullTextAnnotation.text") j = 0 count_j = json.SizeOfArray("responses[i].textAnnotations") Do While j < count_j json.J = j locale = json.StringOf("responses[i].textAnnotations[j].locale") description = json.StringOf("responses[i].textAnnotations[j].description") k = 0 count_k = json.SizeOfArray("responses[i].textAnnotations[j].boundingPoly.vertices") Do While k < count_k json.K = k x = json.IntOf("responses[i].textAnnotations[j].boundingPoly.vertices[k].x") y = json.IntOf("responses[i].textAnnotations[j].boundingPoly.vertices[k].y") k = k + 1 Loop j = j + 1 Loop j = 0 count_j = json.SizeOfArray("responses[i].fullTextAnnotation.pages") Do While j < count_j json.J = j width = json.IntOf("responses[i].fullTextAnnotation.pages[j].width") height = json.IntOf("responses[i].fullTextAnnotation.pages[j].height") k = 0 count_k = json.SizeOfArray("responses[i].fullTextAnnotation.pages[j].property.detectedLanguages") Do While k < count_k json.K = k languageCode = json.StringOf("responses[i].fullTextAnnotation.pages[j].property.detectedLanguages[k].languageCode") k = k + 1 Loop k = 0 count_k = json.SizeOfArray("responses[i].fullTextAnnotation.pages[j].blocks") Do While k < count_k json.K = k blockType = json.StringOf("responses[i].fullTextAnnotation.pages[j].blocks[k].blockType") ' json1 is a Chilkat.JsonObject Set json1 = json.ObjectOf("responses[i].fullTextAnnotation.pages[j].blocks[k]") i1 = 0 count_i1 = json1.SizeOfArray("property.detectedLanguages") Do While i1 < count_i1 json1.I = i1 languageCode = json1.StringOf("property.detectedLanguages[i].languageCode") i1 = i1 + 1 Loop ' json1 is a Chilkat.JsonObject Set json1 = json.ObjectOf("responses[i].fullTextAnnotation.pages[j].blocks[k]") i1 = 0 count_i1 = json1.SizeOfArray("boundingBox.vertices") Do While i1 < count_i1 json1.I = i1 x = json1.IntOf("boundingBox.vertices[i].x") y = json1.IntOf("boundingBox.vertices[i].y") i1 = i1 + 1 Loop ' json1 is a Chilkat.JsonObject Set json1 = json.ObjectOf("responses[i].fullTextAnnotation.pages[j].blocks[k]") i1 = 0 count_i1 = json1.SizeOfArray("paragraphs") Do While i1 < count_i1 json1.I = i1 j1 = 0 count_j1 = json1.SizeOfArray("paragraphs[i].property.detectedLanguages") Do While j1 < count_j1 json1.J = j1 languageCode = json1.StringOf("paragraphs[i].property.detectedLanguages[j].languageCode") j1 = j1 + 1 Loop j1 = 0 count_j1 = json1.SizeOfArray("paragraphs[i].boundingBox.vertices") Do While j1 < count_j1 json1.J = j1 x = json1.IntOf("paragraphs[i].boundingBox.vertices[j].x") y = json1.IntOf("paragraphs[i].boundingBox.vertices[j].y") j1 = j1 + 1 Loop j1 = 0 count_j1 = json1.SizeOfArray("paragraphs[i].words") Do While j1 < count_j1 json1.J = j1 k1 = 0 count_k1 = json1.SizeOfArray("paragraphs[i].words[j].property.detectedLanguages") Do While k1 < count_k1 json1.K = k1 languageCode = json1.StringOf("paragraphs[i].words[j].property.detectedLanguages[k].languageCode") k1 = k1 + 1 Loop k1 = 0 count_k1 = json1.SizeOfArray("paragraphs[i].words[j].boundingBox.vertices") Do While k1 < count_k1 json1.K = k1 x = json1.IntOf("paragraphs[i].words[j].boundingBox.vertices[k].x") y = json1.IntOf("paragraphs[i].words[j].boundingBox.vertices[k].y") k1 = k1 + 1 Loop k1 = 0 count_k1 = json1.SizeOfArray("paragraphs[i].words[j].symbols") Do While k1 < count_k1 json1.K = k1 text = json1.StringOf("paragraphs[i].words[j].symbols[k].text") propertyDetectedBreakType = json1.StringOf("paragraphs[i].words[j].symbols[k].property.detectedBreak.type") ' json2 is a Chilkat.JsonObject Set json2 = json1.ObjectOf("paragraphs[i].words[j].symbols[k]") i2 = 0 count_i2 = json2.SizeOfArray("property.detectedLanguages") Do While i2 < count_i2 json2.I = i2 languageCode = json2.StringOf("property.detectedLanguages[i].languageCode") i2 = i2 + 1 Loop ' json2 is a Chilkat.JsonObject Set json2 = json1.ObjectOf("paragraphs[i].words[j].symbols[k]") i2 = 0 count_i2 = json2.SizeOfArray("boundingBox.vertices") Do While i2 < count_i2 json2.I = i2 x = json2.IntOf("boundingBox.vertices[i].x") y = json2.IntOf("boundingBox.vertices[i].y") i2 = i2 + 1 Loop k1 = k1 + 1 Loop j1 = j1 + 1 Loop i1 = i1 + 1 Loop k = k + 1 Loop j = j + 1 Loop i = i + 1 Loop Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>" %> </body> </html> |
||||
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.