Issues with base64 decoding failed
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JeevanAnand Anne
Jun 6, 2018, 1:31:55 PM6/6/18
to cloud-vision-discuss
Hello,
I am trying to extract text from an image. I tried doing it in Python and was able to do Label Detection and Text Detection. I am able to get the response back.
from google.cloud import vision
import os
os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="vision.json"
import base64
client = vision.ImageAnnotatorClient()
image_path ='Outlook.png'
with open(image_path, 'rb') as image:
content = image.read()
print(content)
#image_content = base64.b64encode(content)
response = client.annotate_image({'image': {'content': content}, 'features': [{'type': vision.enums.Feature.Type.TEXT_DETECTION}],})
print(response)
Unfortunately, I am passing the same requests '{"requests": [{ "features": [ {"type" : "TEXT_DETECTION", maxResults: 3}], "image": {"content": "' + response.getBody() + '"}}]}'; in Javascript. I am trying to call the Google Cloud Vision API from third party tool. But I am receiving the below error. I am able to get the similar content (binary data of an image) in python as well as in Javascript, passing the same content, but I am passing the content to Google Cloud REST API. Any suggestions in resolving the issue.
"{\n \"error\": {\n \"code\": 400,\n \"message\": \"Invalid value at 'requests[0].image.content' (TYPE_BYTES), Base64 decoding failed for \\\"�PNG\\r\\n\\u001a\\n\\u0000\\u0000\\u0000\\rIHDR\\u0000\\u0000\\u00040\\u0000\\u0000\\u0001�\\b\\u0006\\u0000\\u0000\\u0000,�R�\\u0000\\u0000\\f\\u0015iCCPICC Profile\\u0000\\u0000H��W\\u0007XS�\\u0016�[R\\b\\t-\\u0010\\u0001)�7A�t�\\bH\\u0007\\u001b!\\tI(\\u0001\\u0012��\\u001d]Tp-��bEWElk\\u0001d��ba\\u0011�����ʺX��ʛ\\u0014�����;\\u007fΜs�?sϝ�\\u0000�j����F�\\u0000�\\u0011\\u0016�bC���)�L�\\u0013�\\u0001}@\\u0001f��b���bb\\\"\",\n \"status\": \"INVALID_ARGUMENT\",\n \"details\": [\n {\n \"@type\": \"type.googleapis.com/google.rpc.BadRequest\",\n \"fieldViolations\": [\n {\n \"field\": \"requests[0].image.content\",\n \"description\": \"Invalid value at 'requests[0].image.content' (TYPE_BYTES), Base64 decoding failed for \\\"�PNG\\r\\n\\u001a\\n\\u0000\\u0000\\u0000\\rIHDR\\u0000\\u0000\\u00040\\u0000\\u0000\\u0001�\\b\\u0006\\u0000\\u0000\\u0000,�R�\\u0000\\u0000\\f\\u0015iCCPICC Profile\\u0000\\u0000H��W\\u0007XS�\\u0016�[R\\b\\t-\\u0010\\u0001)�7A�t�\\bH\\u0007\\u001b!\\tI(\\u0001\\u0012��\\u001d]Tp-��bEWElk\\u0001d��ba\\u0011�����ʺX��ʛ\\u0014�����;\\u007fΜs�?sϝ�\\u0000�j����F�\\u0000�\\u0011\\u0016�bC���)�L�\\u0013�\\u0001}@\\u0001f��b���bb\\\"\"\n }\n ]\n }\n ]\n }\n}\n"
Regards,
Jeevan
I am trying to extract text from an image. I tried doing it in Python and was able to do Label Detection and Text Detection. I am able to get the response back.
from google.cloud import vision
import os
os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="vision.json"
import base64
client = vision.ImageAnnotatorClient()
image_path ='Outlook.png'
with open(image_path, 'rb') as image:
content = image.read()
print(content)
#image_content = base64.b64encode(content)
response = client.annotate_image({'image': {'content': content}, 'features': [{'type': vision.enums.Feature.Type.TEXT_DETECTION}],})
print(response)
Unfortunately, I am passing the same requests '{"requests": [{ "features": [ {"type" : "TEXT_DETECTION", maxResults: 3}], "image": {"content": "' + response.getBody() + '"}}]}'; in Javascript. I am trying to call the Google Cloud Vision API from third party tool. But I am receiving the below error. I am able to get the similar content (binary data of an image) in python as well as in Javascript, passing the same content, but I am passing the content to Google Cloud REST API. Any suggestions in resolving the issue.
"{\n \"error\": {\n \"code\": 400,\n \"message\": \"Invalid value at 'requests[0].image.content' (TYPE_BYTES), Base64 decoding failed for \\\"�PNG\\r\\n\\u001a\\n\\u0000\\u0000\\u0000\\rIHDR\\u0000\\u0000\\u00040\\u0000\\u0000\\u0001�\\b\\u0006\\u0000\\u0000\\u0000,�R�\\u0000\\u0000\\f\\u0015iCCPICC Profile\\u0000\\u0000H��W\\u0007XS�\\u0016�[R\\b\\t-\\u0010\\u0001)�7A�t�\\bH\\u0007\\u001b!\\tI(\\u0001\\u0012��\\u001d]Tp-��bEWElk\\u0001d��ba\\u0011�����ʺX��ʛ\\u0014�����;\\u007fΜs�?sϝ�\\u0000�j����F�\\u0000�\\u0011\\u0016�bC���)�L�\\u0013�\\u0001}@\\u0001f��b���bb\\\"\",\n \"status\": \"INVALID_ARGUMENT\",\n \"details\": [\n {\n \"@type\": \"type.googleapis.com/google.rpc.BadRequest\",\n \"fieldViolations\": [\n {\n \"field\": \"requests[0].image.content\",\n \"description\": \"Invalid value at 'requests[0].image.content' (TYPE_BYTES), Base64 decoding failed for \\\"�PNG\\r\\n\\u001a\\n\\u0000\\u0000\\u0000\\rIHDR\\u0000\\u0000\\u00040\\u0000\\u0000\\u0001�\\b\\u0006\\u0000\\u0000\\u0000,�R�\\u0000\\u0000\\f\\u0015iCCPICC Profile\\u0000\\u0000H��W\\u0007XS�\\u0016�[R\\b\\t-\\u0010\\u0001)�7A�t�\\bH\\u0007\\u001b!\\tI(\\u0001\\u0012��\\u001d]Tp-��bEWElk\\u0001d��ba\\u0011�����ʺX��ʛ\\u0014�����;\\u007fΜs�?sϝ�\\u0000�j����F�\\u0000�\\u0011\\u0016�bC���)�L�\\u0013�\\u0001}@\\u0001f��b���bb\\\"\"\n }\n ]\n }\n ]\n }\n}\n"
Regards,
Jeevan
Xinjie Zheng
Jun 6, 2018, 1:35:22 PM6/6/18
to JeevanAnand Anne, cloud-vision-discuss
Hi Jeevananand,
You can use e.g. the developer tool to intercept outgoing requests.
Without further information my guess is you probably didn't set up the correct header, e.g.
Content-Type: application/json
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Xinjie Zheng
郑欣杰
Software Engineer
郑欣杰
Software Engineer
JeevanAnand Anne
Jun 6, 2018, 1:43:13 PM6/6/18
to cloud-vision-discuss
Hello Xinjie,
I have setup the correct header. Please find below the code which I have written. As the image is local, passing the binary content to the API. I am able to get the response back in Python using google cloud library with json credentials, having issues sending to REST API.
var contentBody = '{"requests": [{ "features": [ {"type" : "TEXT_DETECTION", maxResults: 3}], "image": {"content": "' + response.getBody() + '"}}]}';
var restMessage = new sn_ws.RESTMessageV2();
restMessage.setBasicAuth("admin", "admin");
restMessage.setHttpMethod("post");
restMessage.setRequestHeader("Content-type", "application/json");
restMessage.setEndpoint("https://vision.googleapis.com/v1/images:annotate?key=< KEY >");
restMessage.setRequestBody(contentBody);
var response = restMessage.execute();
Regards,
Jeevan Anne
I have setup the correct header. Please find below the code which I have written. As the image is local, passing the binary content to the API. I am able to get the response back in Python using google cloud library with json credentials, having issues sending to REST API.
var contentBody = '{"requests": [{ "features": [ {"type" : "TEXT_DETECTION", maxResults: 3}], "image": {"content": "' + response.getBody() + '"}}]}';
var restMessage = new sn_ws.RESTMessageV2();
restMessage.setBasicAuth("admin", "admin");
restMessage.setHttpMethod("post");
restMessage.setRequestHeader("Content-type", "application/json");
restMessage.setEndpoint("https://vision.googleapis.com/v1/images:annotate?key=< KEY >");
restMessage.setRequestBody(contentBody);
var response = restMessage.execute();
Regards,
Jeevan Anne
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George Du
Jun 6, 2018, 6:13:09 PM6/6/18
to jeeva...@gmail.com, cloud-visi...@googlegroups.com
Hi Jeevan, can you try base64 encoding the image before sending it via REST? The client library uses gRPC whereas when you use http, you must use JSON with a b64-encoded input.
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--Xinjie Zheng
郑欣杰
Software Engineer
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JeevanAnand Anne
Jun 7, 2018, 1:21:36 PM6/7/18
to cloud-vision-discuss
Hello George,
Thanks. I was able to find sort out after base64 encoding.
Regards,
Jeevan Anne
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--Xinjie Zheng
郑欣杰
Software Engineer
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