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{{otherlang
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  | fr=FR:Guide d'annotation de logos
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}}
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[[Category:Artificial Intelligence]]
 
[[Category:Artificial Intelligence]]
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[[Category:Hunger Games]]
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[[File:Logo annotation game.png|alt=|thumb]]
 
The annotation Web interface is available at: https://hunger.openfoodfacts.org/logos.
 
The annotation Web interface is available at: https://hunger.openfoodfacts.org/logos.
    
The goal of the annotation is to provide ground-truth labels that will be used to predict the label of unseen logos.
 
The goal of the annotation is to provide ground-truth labels that will be used to predict the label of unseen logos.
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'''It is extremely important to provide quality annotations, otherwise the predictions won't be qualitative'''.
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'''It is extremely important to provide quality annotations, otherwise, the predictions won't be qualitative'''.
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If you're not sure of how you should annotate a logo, ask on the Slack, in the #ai-logo-detection channel.
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If you're not sure of how you should annotate a logo, ask on Slack, in the #ai-logo-detection channel.
    
== How to? ==
 
== How to? ==
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3. Fill ''value'' and ''type'' corresponding to the selected logos. Be sure to '''check that the ''value'' and ''type'' are correct before submitting the annotation''' :
 
3. Fill ''value'' and ''type'' corresponding to the selected logos. Be sure to '''check that the ''value'' and ''type'' are correct before submitting the annotation''' :
 
* The ''value'' field should only be completed for "brand" and "label" types.
 
* The ''value'' field should only be completed for "brand" and "label" types.
* The value should match one item in the associated taxonomy, otherwise it won't be used for prediction. The field value is lowercased before saving the annotation.
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* The value should match one item in the associated taxonomy, otherwise it won't be used for prediction. The field value is lowercase before saving the annotation.
* Use ''QR code'' type for QR codes, ''Packager code'' for packager codes (code surrounded by a circle), ''Brand'' for brand logos and ''Label'' for label logos.
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* Use ''QR code'' type for QR codes, ''Packager code'' for packager codes (code surrounded by a circle), ''Brand'' for brand logos, and ''Label'' for label logos.
 
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Example: https://hunger.openfoodfacts.org/logos?logo_id=161643
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Here, we should add "label rouge" as value and "label" as type. Server-side, the value is transformed into a tag ("label-rouge") and matched against the taxonomy to associate the real taxonomy ID to the value ("en:label-rouge").
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Lang prefixes ("en:", "fr:") should not be added, otherwise the taxonomy match will fail.
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For labels and brands, logo annotations will update the product by adding the annotated label or brand. Please note that there is a 5 minutes delay between the annotation and the database update.
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Example of '''valid''' values:
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Example (label): https://hunger.openfoodfacts.org/logos?logo_id=161643, here, we should add "Label Rouge" as value and "label" as type.
* gluten-free
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* volaille française
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* auchan
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* reflets de france
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Example of '''invalid''' values:
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Example (brand): https://hunger.openfoodfacts.org/logos?logo_id=444915, here we should add "Rachel's" as value and "brand" as type. Please note there is not yet auto-completion for brand. Server-side, the value is transformed into a tag ("rachel-s") and matched against existing brands in the database. The brand logo annotation is used only if we find a match.
* en:gluten-free
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* fr:volaille française
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* ab bio (not in taxonomy, the right value is ''ab agriculture biologique'')
      
'''If more than one logo is visible on the crop, do not annotate it'''. A flag system should be available in the future to report them.
 
'''If more than one logo is visible on the crop, do not annotate it'''. A flag system should be available in the future to report them.
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If the logo is truncated, annotate it anyway if it can still be recognized.
 
If the logo is truncated, annotate it anyway if it can still be recognized.
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You can click on the blue link on the top-right corner of each logo card. It will open a new tab with this specific logo as reference. It's really useful to find similar logos to annotate.
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You can click on the blue link in the top-right corner of each logo card. It will open a new tab with this specific logo as a reference. It's really useful to find similar logos to annotate.
    
Query parameters:
 
Query parameters:
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For instance, to display 50 results, use: https://hunger.openfoodfacts.org/logos?count=50
 
For instance, to display 50 results, use: https://hunger.openfoodfacts.org/logos?count=50
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== Common labels ==
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== Infinite mode ==
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Once you're confident with the standard logo annotation interface, you can try the more powerful Infinite mode available at: https://hunger.openfoodfacts.org/logos/deep-search
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The mechanism of Infinite mode annotation is the following:
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* fetch all logos annotated with a type and value
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* for each fetched logo, get the most similar logos without annotations
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* display all these unannotated logos
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This is a very effective mode to annotate logos that already have a few annotations.
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== Product mode ==
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If you want to annotate logos of a specific brand or label but infinite mode does not yield any result (because there is no annotated logos yet), you can try bootstrapping logo annotations with product mode: https://hunger.openfoodfacts.org/logos/product-search
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Remembering the right label name may be hard sometimes, so here is a list of common label names you will probably see:
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Start selecting a type (label or brand) and a value. All logos of all images of all products that have this brand/label will be displayed. You just need to select relevant logos and annotate them.
* [https://world.openfoodfacts.org/label/fr:viande-porcine-francaise Viande porcine française]
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* [https://world.openfoodfacts.org/label/fr:volaille-francaise Volaille Française]
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* [https://world.openfoodfacts.org/label/fr:viande-bovine-francaise Viande Bovine Française]
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* [https://world.openfoodfacts.org/label/nutriscore-grade-a Nutriscore Grade A]
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* [https://world.openfoodfacts.org/label/green-dot Green Dot]
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* [https://world.openfoodfacts.org/label/ab-agriculture-biologique AB Agriculture Biologique]
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* [https://world.openfoodfacts.org/label/eu-organic EU Organic]
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* [https://world.openfoodfacts.org/label/european-vegetarian-union European Vegetarian Union]
 

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