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Line 12: − Thanks to automatic Optical Characters Recognition (OCR), this field can be filled by softwares. But OCR is not always good, and you should always verify the result.+ + + + + + + + + + + + + − + + + + + Line 24:
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explanation on ingredients acquisition
=== Filling ingredients data ===
=== Filling ingredients data ===
This is done through an application. Steps as are follow:
* text acquisition
** either a user type ingredients
** or
*** he upload an image, or select an existing one
*** we send it to an OCR (image to text)
*** we fill the text but ask user to verify and eventually correct it
* text parsing
** when submitted, text description is parsed by the [https://github.com/openfoodfacts/openfoodfacts-server/ product opener] code
** this code heavily relies on the [[ingredients taxonomy]] to identify as much ingredients as possible
** but also on specific local habits in the way to write ingredients (and you may contribute code for your country, or report specific problems)
** it also tries to distinguish between ingredients, origins, processing, quantities, and sub-ingredients (ingredients composing other ingredients)
=== Database ===
=== Database ===
In the database, this field is called <code>ingredients_text_[language code]</code>.
In the database, this field is called <code>ingredients_text_[language code]</code> which contains the raw data by language.
<code>ingredients</code> contains all inferred information thanks to parsing, <code>ingredients_tags</code> contains ingredients taxonomy entries (and their parents) corresponding to identified ingredients.
Other fields are derived from this analysis like <code>allergens_from_ingredients</code> or <code>ingredients_analysis</code>
=== Tools ===
=== Tools ===
==== Ingredients analyzing ====
==== Ingredients analyzing ====
Analyzing ingredients is not an easy task. A whole page is dedicated to [[Ingredients Extraction and Analysis]].
Analyzing ingredients is not an easy task. A whole page is dedicated to [[Ingredients Extraction and Analysis]].
On every products, you can also see how the software identifies ingredients in the text to verify its understanding.
As a result we can find metrics related to [[Ingredients Analysis Quality]].
As a result we can find metrics related to [[Ingredients Analysis Quality]].