Google Cloud Vision Text Detection On iOS Device










0















I am trying to detect texts on image which is taken by device camera and also image which is picked from gallery. ( For the camera, i am using apple's camera codes-AVFoundation-)



I can detect texts on image which is picked from gallery. But however, when i take a picture with camera, same codes are not working the same. I predict that cloud vision has a good detection on images which is edited(saved). Or i do not have any other idea.



When i take a picture and try to detect that code, its not working. But when i save the same picture and pick that from gallery, Working perfectly. Here i share the codes, hope you can help me.



ImagePicker Codes which is working perfectly:



 @objc internal func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage
imageView.image = editedImage
let vision = Vision.vision()
let textRecognizer = vision.onDeviceTextRecognizer()
let visionImage = VisionImage(image: editedImage)
textRecognizer.process(visionImage) (features, error) in
features?.blocks.forEach( (block) in
print(block.text)
)

dismiss(animated: true, completion:
UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent
)



Taking picture button codes which is not working good:



 @IBAction func takePicture(_ sender: Any) 
cameraController.captureImage (image, error) in
guard let image = image else
print(error ?? "Image capture error")
return

self.imageView.image = image
let vision = Vision.vision()
let textRecognizer = vision.onDeviceTextRecognizer()
let visionImage = VisionImage(image: image)
textRecognizer.process(visionImage) (features, error) in
features?.blocks.forEach( (block) in
print(block.text)
)












share|improve this question




























    0















    I am trying to detect texts on image which is taken by device camera and also image which is picked from gallery. ( For the camera, i am using apple's camera codes-AVFoundation-)



    I can detect texts on image which is picked from gallery. But however, when i take a picture with camera, same codes are not working the same. I predict that cloud vision has a good detection on images which is edited(saved). Or i do not have any other idea.



    When i take a picture and try to detect that code, its not working. But when i save the same picture and pick that from gallery, Working perfectly. Here i share the codes, hope you can help me.



    ImagePicker Codes which is working perfectly:



     @objc internal func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage
    imageView.image = editedImage
    let vision = Vision.vision()
    let textRecognizer = vision.onDeviceTextRecognizer()
    let visionImage = VisionImage(image: editedImage)
    textRecognizer.process(visionImage) (features, error) in
    features?.blocks.forEach( (block) in
    print(block.text)
    )

    dismiss(animated: true, completion:
    UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent
    )



    Taking picture button codes which is not working good:



     @IBAction func takePicture(_ sender: Any) 
    cameraController.captureImage (image, error) in
    guard let image = image else
    print(error ?? "Image capture error")
    return

    self.imageView.image = image
    let vision = Vision.vision()
    let textRecognizer = vision.onDeviceTextRecognizer()
    let visionImage = VisionImage(image: image)
    textRecognizer.process(visionImage) (features, error) in
    features?.blocks.forEach( (block) in
    print(block.text)
    )












    share|improve this question


























      0












      0








      0








      I am trying to detect texts on image which is taken by device camera and also image which is picked from gallery. ( For the camera, i am using apple's camera codes-AVFoundation-)



      I can detect texts on image which is picked from gallery. But however, when i take a picture with camera, same codes are not working the same. I predict that cloud vision has a good detection on images which is edited(saved). Or i do not have any other idea.



      When i take a picture and try to detect that code, its not working. But when i save the same picture and pick that from gallery, Working perfectly. Here i share the codes, hope you can help me.



      ImagePicker Codes which is working perfectly:



       @objc internal func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
      if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage
      imageView.image = editedImage
      let vision = Vision.vision()
      let textRecognizer = vision.onDeviceTextRecognizer()
      let visionImage = VisionImage(image: editedImage)
      textRecognizer.process(visionImage) (features, error) in
      features?.blocks.forEach( (block) in
      print(block.text)
      )

      dismiss(animated: true, completion:
      UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent
      )



      Taking picture button codes which is not working good:



       @IBAction func takePicture(_ sender: Any) 
      cameraController.captureImage (image, error) in
      guard let image = image else
      print(error ?? "Image capture error")
      return

      self.imageView.image = image
      let vision = Vision.vision()
      let textRecognizer = vision.onDeviceTextRecognizer()
      let visionImage = VisionImage(image: image)
      textRecognizer.process(visionImage) (features, error) in
      features?.blocks.forEach( (block) in
      print(block.text)
      )












      share|improve this question
















      I am trying to detect texts on image which is taken by device camera and also image which is picked from gallery. ( For the camera, i am using apple's camera codes-AVFoundation-)



      I can detect texts on image which is picked from gallery. But however, when i take a picture with camera, same codes are not working the same. I predict that cloud vision has a good detection on images which is edited(saved). Or i do not have any other idea.



      When i take a picture and try to detect that code, its not working. But when i save the same picture and pick that from gallery, Working perfectly. Here i share the codes, hope you can help me.



      ImagePicker Codes which is working perfectly:



       @objc internal func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
      if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage
      imageView.image = editedImage
      let vision = Vision.vision()
      let textRecognizer = vision.onDeviceTextRecognizer()
      let visionImage = VisionImage(image: editedImage)
      textRecognizer.process(visionImage) (features, error) in
      features?.blocks.forEach( (block) in
      print(block.text)
      )

      dismiss(animated: true, completion:
      UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent
      )



      Taking picture button codes which is not working good:



       @IBAction func takePicture(_ sender: Any) 
      cameraController.captureImage (image, error) in
      guard let image = image else
      print(error ?? "Image capture error")
      return

      self.imageView.image = image
      let vision = Vision.vision()
      let textRecognizer = vision.onDeviceTextRecognizer()
      let visionImage = VisionImage(image: image)
      textRecognizer.process(visionImage) (features, error) in
      features?.blocks.forEach( (block) in
      print(block.text)
      )









      swift xcode avfoundation google-cloud-vision text-recognition






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 15 '18 at 6:04







      Ers Tar

















      asked Nov 14 '18 at 20:27









      Ers TarErs Tar

      487




      487






















          0






          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function ()
          StackExchange.using("externalEditor", function ()
          StackExchange.using("snippets", function ()
          StackExchange.snippets.init();
          );
          );
          , "code-snippets");

          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "1"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













          draft saved

          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53308257%2fgoogle-cloud-vision-text-detection-on-ios-device%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes















          draft saved

          draft discarded
















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid


          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.

          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53308257%2fgoogle-cloud-vision-text-detection-on-ios-device%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          這個網誌中的熱門文章

          How to read a connectionString WITH PROVIDER in .NET Core?

          In R, how to develop a multiplot heatmap.2 figure showing key labels successfully

          Museum of Modern and Contemporary Art of Trento and Rovereto