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Nutrition Facts Label OCR .NET

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The .NET OCR SDK supports the Nutrition Facts Label API.

The sample below can be used for testing purposes.
Nutrition Facts Label sample

Quick-Start

using Mindee;
using Mindee.Input;
using Mindee.Product.NutritionFactsLabel;

string apiKey = "my-api-key";
string filePath = "/path/to/the/file.ext";

// Construct a new client
MindeeClient mindeeClient = new MindeeClient(apiKey);

// Load an input source as a path string
// Other input types can be used, as mentioned in the docs
var inputSource = new LocalInputSource(filePath);

// Call the product asynchronously with auto-polling
var response = await mindeeClient
    .EnqueueAndParseAsync<NutritionFactsLabelV1>(inputSource);

// Print a summary of all the predictions
System.Console.WriteLine(response.Document.ToString());

// Print only the document-level predictions
// System.Console.WriteLine(response.Document.Inference.Prediction.ToString());

Field Types

Standard Fields

These fields are generic and used in several products.

BaseField

Each prediction object contains a set of fields that inherit from the generic BaseField class.
A typical BaseField object will have the following attributes:

  • Confidence (double?): the confidence score of the field prediction.
  • BoundingBox (BoundingBox): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document.
  • Polygon (Polygon): contains the relative vertices coordinates (Polygon extends List<Point>) of a polygon containing the field in the image.
  • PageId (int?): the ID of the page, always null when at document-level.

Note: A Point simply refers to a List of double.

Aside from the previous attributes, all basic fields have access to a custom ToString method that can be used to print their value as a string.

AmountField

An amount field AmountField extends BaseField, but also implements:

  • Value (double?): corresponds to the field value. Can be null if no value was extracted.

Specific Fields

Fields which are specific to this product; they are not used in any other product.

Added Sugars Field

The amount of added sugars in the product.

A NutritionFactsLabelV1AddedSugar implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of added sugars to consume or not to exceed each day.
  • Per100G (double): The amount of added sugars per 100g of the product.
  • PerServing (double): The amount of added sugars per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Calories Field

The amount of calories in the product.

A NutritionFactsLabelV1Calorie implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of calories to consume or not to exceed each day.
  • Per100G (double): The amount of calories per 100g of the product.
  • PerServing (double): The amount of calories per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Cholesterol Field

The amount of cholesterol in the product.

A NutritionFactsLabelV1Cholesterol implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of cholesterol to consume or not to exceed each day.
  • Per100G (double): The amount of cholesterol per 100g of the product.
  • PerServing (double): The amount of cholesterol per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Dietary Fiber Field

The amount of dietary fiber in the product.

A NutritionFactsLabelV1DietaryFiber implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of dietary fiber to consume or not to exceed each day.
  • Per100G (double): The amount of dietary fiber per 100g of the product.
  • PerServing (double): The amount of dietary fiber per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

nutrients Field

The amount of nutrients in the product.

A NutritionFactsLabelV1Nutrient implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of nutrients to consume or not to exceed each day.
  • Name (string): The name of nutrients of the product.
  • Per100G (double): The amount of nutrients per 100g of the product.
  • PerServing (double): The amount of nutrients per serving of the product.
  • Unit (string): The unit of measurement for the amount of nutrients.
    Fields which are specific to this product; they are not used in any other product.

Protein Field

The amount of protein in the product.

A NutritionFactsLabelV1Protein implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of protein to consume or not to exceed each day.
  • Per100G (double): The amount of protein per 100g of the product.
  • PerServing (double): The amount of protein per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Saturated Fat Field

The amount of saturated fat in the product.

A NutritionFactsLabelV1SaturatedFat implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of saturated fat to consume or not to exceed each day.
  • Per100G (double): The amount of saturated fat per 100g of the product.
  • PerServing (double): The amount of saturated fat per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Serving Size Field

The size of a single serving of the product.

A NutritionFactsLabelV1ServingSize implements the following attributes:

  • Amount (double): The amount of a single serving.
  • Unit (string): The unit for the amount of a single serving.
    Fields which are specific to this product; they are not used in any other product.

sodium Field

The amount of sodium in the product.

A NutritionFactsLabelV1Sodium implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of sodium to consume or not to exceed each day.
  • Per100G (double): The amount of sodium per 100g of the product.
  • PerServing (double): The amount of sodium per serving of the product.
  • Unit (string): The unit of measurement for the amount of sodium.
    Fields which are specific to this product; they are not used in any other product.

Total Carbohydrate Field

The total amount of carbohydrates in the product.

A NutritionFactsLabelV1TotalCarbohydrate implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of total carbohydrates to consume or not to exceed each day.
  • Per100G (double): The amount of total carbohydrates per 100g of the product.
  • PerServing (double): The amount of total carbohydrates per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Total Fat Field

The total amount of fat in the product.

A NutritionFactsLabelV1TotalFat implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of total fat to consume or not to exceed each day.
  • Per100G (double): The amount of total fat per 100g of the product.
  • PerServing (double): The amount of total fat per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Total Sugars Field

The total amount of sugars in the product.

A NutritionFactsLabelV1TotalSugar implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of total sugars to consume or not to exceed each day.
  • Per100G (double): The amount of total sugars per 100g of the product.
  • PerServing (double): The amount of total sugars per serving of the product.
    Fields which are specific to this product; they are not used in any other product.

Trans Fat Field

The amount of trans fat in the product.

A NutritionFactsLabelV1TransFat implements the following attributes:

  • DailyValue (double): DVs are the recommended amounts of trans fat to consume or not to exceed each day.
  • Per100G (double): The amount of trans fat per 100g of the product.
  • PerServing (double): The amount of trans fat per serving of the product.

Attributes

The following fields are extracted for Nutrition Facts Label V1:

Added Sugars

AddedSugars(NutritionFactsLabelV1AddedSugar): The amount of added sugars in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.AddedSugars.Value);

Calories

Calories(NutritionFactsLabelV1Calorie): The amount of calories in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.Calories.Value);

Cholesterol

Cholesterol(NutritionFactsLabelV1Cholesterol): The amount of cholesterol in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.Cholesterol.Value);

Dietary Fiber

DietaryFiber(NutritionFactsLabelV1DietaryFiber): The amount of dietary fiber in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.DietaryFiber.Value);

nutrients

Nutrients(List<NutritionFactsLabelV1Nutrient>): The amount of nutrients in the product.

foreach (var NutrientsElem in result.Document.Inference.Prediction.Nutrients)
{
    System.Console.WriteLine(NutrientsElem.Value);
}

Protein

Protein(NutritionFactsLabelV1Protein): The amount of protein in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.Protein.Value);

Saturated Fat

SaturatedFat(NutritionFactsLabelV1SaturatedFat): The amount of saturated fat in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.SaturatedFat.Value);

Serving per Box

ServingPerBox: The number of servings in each box of the product.

System.Console.WriteLine(result.Document.Inference.Prediction.ServingPerBox.Value);

Serving Size

ServingSize(NutritionFactsLabelV1ServingSize): The size of a single serving of the product.

System.Console.WriteLine(result.Document.Inference.Prediction.ServingSize.Value);

sodium

Sodium(NutritionFactsLabelV1Sodium): The amount of sodium in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.Sodium.Value);

Total Carbohydrate

TotalCarbohydrate(NutritionFactsLabelV1TotalCarbohydrate): The total amount of carbohydrates in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.TotalCarbohydrate.Value);

Total Fat

TotalFat(NutritionFactsLabelV1TotalFat): The total amount of fat in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.TotalFat.Value);

Total Sugars

TotalSugars(NutritionFactsLabelV1TotalSugar): The total amount of sugars in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.TotalSugars.Value);

Trans Fat

TransFat(NutritionFactsLabelV1TransFat): The amount of trans fat in the product.

System.Console.WriteLine(result.Document.Inference.Prediction.TransFat.Value);

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Updated 22 days ago