Vision API, REST: Vision.BatchAnalyze

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Updated at April 24, 2025

HTTP request
Body parameters
AnalyzeSpec
Feature
FeatureClassificationConfig
FeatureTextDetectionConfig
Response
AnalyzeResult
FeatureResult
TextAnnotation
Page
Block
Polygon
Vertex
Line
Word
DetectedLanguage
Entity
ClassAnnotation
Property
FaceAnnotation
Face
ImageCopySearchAnnotation
CopyMatch
Status

Analyzes a batch of images and returns results with annotations.

HTTP request

POST https://vision.api.cloud.yandex.net/vision/v1/batchAnalyze

Body parameters

{
  "analyzeSpecs": [
    {
      // Includes only one of the fields `content`, `signature`
      "content": "string",
      "signature": "string",
      // end of the list of possible fields
      "features": [
        {
          "type": "string",
          // Includes only one of the fields `classificationConfig`, `textDetectionConfig`
          "classificationConfig": {
            "model": "string"
          },
          "textDetectionConfig": {
            "languageCodes": [
              "string"
            ],
            "model": "string"
          }
          // end of the list of possible fields
        }
      ],
      "mimeType": "string"
    }
  ],
  "folderId": "string"
}

Field

Description

analyzeSpecs[]

AnalyzeSpec

A list of specifications. Each specification contains the file to analyze and features to use for analysis.

Restrictions:

Supported file formats: JPEG, PNG.
Maximum file size: 1 MB.
Image size should not exceed 20M pixels (length x width).

folderId

string

ID of the folder to which you have access.

Required for authorization with a user account.

Don't specify this field if you make the request on behalf of a service account.

AnalyzeSpec

Field	Description
content	string (bytes) Image content, represented as a stream of bytes. Note: As with all bytes fields, protobuffers use a pure binary representation, whereas JSON representations use base64. Includes only one of the fields `content`, `signature`.
signature	string Includes only one of the fields `content`, `signature`.
features[]	Feature Requested features to use for analysis. Max count of requested features for one file is 8.
mimeType	string MIME type of content (for example, `application/pdf`).

Feature

Field	Description
type	enum (Type) Type of requested feature. `TYPE_UNSPECIFIED` `TEXT_DETECTION`: Text detection (OCR) feature. `CLASSIFICATION`: Classification feature. `FACE_DETECTION`: Face detection feature. `IMAGE_COPY_SEARCH`: Image copy search.
classificationConfig	FeatureClassificationConfig Required for the `CLASSIFICATION` type. Specifies configuration for the classification feature. Includes only one of the fields `classificationConfig`, `textDetectionConfig`.
textDetectionConfig	FeatureTextDetectionConfig Required for the `TEXT_DETECTION` type. Specifies configuration for the text detection (OCR) feature. Includes only one of the fields `classificationConfig`, `textDetectionConfig`.

FeatureClassificationConfig

Field

Description

model

string

Model to use for image classification.

FeatureTextDetectionConfig

Field

Description

languageCodes[]

string

List of the languages to recognize text.
Specified in ISO 639-1 format (for example, ru).

model

string

Model to use for text detection.
Possible values:

page (default): this model is suitable for detecting multiple text entries in an image.
line: this model is suitable for cropped images with one line of text.

Response

HTTP Code: 200 - OK

{
  "results": [
    {
      "results": [
        {
          // Includes only one of the fields `textDetection`, `classification`, `faceDetection`, `imageCopySearch`
          "textDetection": {
            "pages": [
              {
                "width": "string",
                "height": "string",
                "blocks": [
                  {
                    "boundingBox": {
                      "vertices": [
                        {
                          "x": "string",
                          "y": "string"
                        }
                      ]
                    },
                    "lines": [
                      {
                        "boundingBox": {
                          "vertices": [
                            {
                              "x": "string",
                              "y": "string"
                            }
                          ]
                        },
                        "words": [
                          {
                            "boundingBox": {
                              "vertices": [
                                {
                                  "x": "string",
                                  "y": "string"
                                }
                              ]
                            },
                            "text": "string",
                            "confidence": "string",
                            "languages": [
                              {
                                "languageCode": "string",
                                "confidence": "string"
                              }
                            ],
                            "entityIndex": "string"
                          }
                        ],
                        "confidence": "string"
                      }
                    ]
                  }
                ],
                "entities": [
                  {
                    "name": "string",
                    "text": "string"
                  }
                ]
              }
            ]
          },
          "classification": {
            "properties": [
              {
                "name": "string",
                "probability": "string"
              }
            ]
          },
          "faceDetection": {
            "faces": [
              {
                "boundingBox": {
                  "vertices": [
                    {
                      "x": "string",
                      "y": "string"
                    }
                  ]
                }
              }
            ]
          },
          "imageCopySearch": {
            "copyCount": "string",
            "topResults": [
              {
                "imageUrl": "string",
                "pageUrl": "string",
                "title": "string",
                "description": "string"
              }
            ]
          },
          // end of the list of possible fields
          "error": {
            "code": "integer",
            "message": "string",
            "details": [
              "object"
            ]
          }
        }
      ],
      "error": {
        "code": "integer",
        "message": "string",
        "details": [
          "object"
        ]
      }
    }
  ]
}

Field

Description

results[]

AnalyzeResult

Request results.
Results have the same order as specifications in the request.

AnalyzeResult

Field

Description

results[]

FeatureResult

Results for each requested feature.
Feature results have the same order as in the request.

error

Status

The error result of the operation in case of failure or cancellation.

FeatureResult

Field	Description
textDetection	TextAnnotation Text detection (OCR) result. Includes only one of the fields `textDetection`, `classification`, `faceDetection`, `imageCopySearch`.
classification	ClassAnnotation Classification result. Includes only one of the fields `textDetection`, `classification`, `faceDetection`, `imageCopySearch`.
faceDetection	FaceAnnotation Face detection result. Includes only one of the fields `textDetection`, `classification`, `faceDetection`, `imageCopySearch`.
imageCopySearch	ImageCopySearchAnnotation Image Copy Search result. Includes only one of the fields `textDetection`, `classification`, `faceDetection`, `imageCopySearch`.
error	Status The error result of the operation in case of failure or cancellation.

TextAnnotation

Field

Description

pages[]

Page

Pages of the recognized file.

For JPEG and PNG files contains only 1 page.

Page

Field	Description
width	string (int64) Page width in pixels.
height	string (int64) Page height in pixels.
blocks[]	Block Recognized text blocks in this page.
entities[]	Entity Recognized entities

Block

Field

Description

boundingBox

Polygon

Area on the page where the text block is located.

lines[]

Line

Recognized lines in this block.

Polygon

Field

Description

vertices[]

Vertex

The bounding polygon vertices.

Vertex

Field

Description

string (int64)

X coordinate in pixels.

string (int64)

Y coordinate in pixels.

Line

Field	Description
boundingBox	Polygon Area on the page where the line is located.
words[]	Word Recognized words in this line.
confidence	string Confidence of the OCR results for the line. Range [0, 1].

Word

Field	Description
boundingBox	Polygon Area on the page where the word is located.
text	string Recognized word value.
confidence	string Confidence of the OCR results for the word. Range [0, 1].
languages[]	DetectedLanguage A list of detected languages together with confidence.
entityIndex	string (int64) Id of recognized word in entities array

DetectedLanguage

Field

Description

languageCode

string

Detected language code.

confidence

string

Confidence of detected language. Range [0, 1].

Entity

Field

Description

name

string

Entity name

text

string

Recognized entity text

ClassAnnotation

Field

Description

properties[]

Property

Properties extracted by a specified model.

For example, if you ask to evaluate the image quality,
the service could return such properties as good and bad.

Property

Field

Description

name

string

Property name.

probability

string

Probability of the property, from 0 to 1.

FaceAnnotation

Field

Description

faces[]

Face

An array of detected faces for the specified image.

Face

Field

Description

boundingBox

Polygon

Area on the image where the face is located.

ImageCopySearchAnnotation

Field

Description

copyCount

string (int64)

Number of image copies

topResults[]

CopyMatch

Top relevance result of image copy search

CopyMatch

Field	Description
imageUrl	string url of image
pageUrl	string url of page that contains image
title	string page title that contains image
description	string image description

Status

The error result of the operation in case of failure or cancellation.

Field	Description
code	integer (int32) Error code. An enum value of google.rpc.Code.
message	string An error message.
details[]	object A list of messages that carry the error details.

Vision API, REST: Vision.BatchAnalyze

HTTP requestHTTP request

Body parametersBody parameters

AnalyzeSpecAnalyzeSpec

FeatureFeature

FeatureClassificationConfigFeatureClassificationConfig

FeatureTextDetectionConfigFeatureTextDetectionConfig

ResponseResponse

AnalyzeResultAnalyzeResult

FeatureResultFeatureResult

TextAnnotationTextAnnotation

PagePage

BlockBlock

PolygonPolygon

VertexVertex

LineLine

WordWord

DetectedLanguageDetectedLanguage

EntityEntity

ClassAnnotationClassAnnotation

PropertyProperty

FaceAnnotationFaceAnnotation

FaceFace

ImageCopySearchAnnotationImageCopySearchAnnotation

CopyMatchCopyMatch

StatusStatus

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HTTP request

Body parameters

AnalyzeSpec

Feature

FeatureClassificationConfig

FeatureTextDetectionConfig

Response

AnalyzeResult

FeatureResult

TextAnnotation

Page

Block

Polygon

Vertex

Line

Word

DetectedLanguage

Entity

ClassAnnotation

Property

FaceAnnotation

Face

ImageCopySearchAnnotation

CopyMatch

Status