DOCS.md

# Unsplash Dataset Documentation

The Unsplash Dataset is composed of multiple TSV files:

## 1 - photos.tsv

The `photos.tsv` dataset has one row per photo. It contains properties of the photo, the name of the contributor, the image URL, and overall stats.

| Field                       | Description |
|-----------------------------|-------------|
| photo_id                       | ID of the Unsplash photo |
| photo_url                      | Permalink URL to the photo page on unsplash.com |
| photo_image_url                | URL of the image file. Note: this is a [dynamic URL](https://unsplash.com/documentation#dynamically-resizable-images), so you can apply [resizing and customization operations directly on the image](https://unsplash.com/documentation#supported-parameters) |
| photo_submitted_at             | Timestamp of when the photo was submitted to Unsplash |
| photo_featured                 | Whether the photo was promoted to the [Editorial feed](https://unsplash.com/) or not |
| photo_width                    | Width of the photo in pixels |
| photo_height                   | Height of the photo in pixels |
| photo_aspect_ratio             | Aspect ratio of the photo |
| photo_description              | Description of the photo written by the photographer |
| photographer_username          | Username of the photographer on Unsplash |
| photographer_first_name        | First name of the photographer |
| photographer_last_name         | Last name of the photographer |
| exif_camera_make               | Camera make (brand) extracted from the EXIF data |
| exif_camera_model              | Camera model extracted from the EXIF data |
| exif_iso                       | ISO setting of the camera, extracted from the EXIF data |
| exif_aperture_value            | Aperture setting of the camera, extracted from the EXIF data |
| exif_focal_length              | Focal length setting of the camera, extracted from the EXIF data |
| exif_exposure_time             | Exposure time setting of the camera, extracted from the EXIF data |
| photo_location_name            | Location of the photo |
| photo_location_latitude        | Latitude of the photo |
| photo_location_longitude       | Longitude of the photo |
| photo_location_country         | Country where the photo was made |
| photo_location_city            | City where the photo was made |
| stats_views                    | Total # of times that a photo has been viewed on the Unsplash platform |
| stats_downloads                | Total # of times that a photo has been downloaded via the Unsplash platform |
| ai_description                 | Textual description of the photo, generated by a 3rd party AI |
| ai_primary_landmark_name       | Landmark present in the photo, generated by a 3rd party AI |
| ai_primary_landmark_latitude   | Latitude of the landmark, generated by a 3rd party AI |
| ai_primary_landmark_longitude  | Longitude of the landmark, generated by a 3rd party AI |
| ai_primary_landmark_confidence | Landmark confidence of the 3rd party AI |
| blur_hash                      | [BlurHash](https://blurha.sh/) hash of the photo |

## 2 - keywords.tsv

The `keywords.tsv` dataset has one row per photo-keyword pair. It contains data
about how a keyword is connected to a photo and the conversions of the photo our search engine for a particular keyword.

| Field                         | Description |
|-------------------------------|-------------|
| photo_id                      | ID of the Unsplash photo |
| keyword                       | Keyword or search term |
| ai_service_1_confidence       | Confidence for the keyword from a 3rd party AI (0-100)|
| ai_service_2_confidence       | Confidence for the keyword from another 3rd party AI (0-100)|
| suggested_by_user             | Whether the keyword was added by a user (human) |

## 3 - collections.tsv

*Note: A collection on Unsplash is a user created grouping of photos. These are similar to boards on Pinterest and can often group photos in complex and creative ways.*

The `collections.tsv` dataset has one row per photo-collection pair. Whenever a photo
belongs to a collection created by a user, it will appear as one row. Each row describes
when the photo was added to the collection and gives the title of the collection.

| Field                         | Description |
|-------------------------------|-------------|
| photo_id                      | ID of the Unsplash photo |
| collection_id                 | ID of the Unsplash collection containing the photo |
| collection_title              | Title of the collection containing the photo |
| photo_collected_at            | Timestamp of when the photo was added to the collection |

## 4 - conversions.tsv

*Note: a conversion is currently defined as a user selecting an image to download it.*

The `conversions.tsv` dataset has one row per search conversion. The dataset tells you which photo has been downloaded for a search, the country of origin, and an anonymous identifier to indiciate the unique users. The data goes back up to 1 year before the release of each version of the dataset.

| Field                         | Description |
|-------------------------------|-------------|
| converted_at                  | Timestamp of the conversion event |
| conversion_type               | Type of conversion (`download` only for now) |
| keyword                       | Keyword that was searched and led to the conversion |
| photo_id                      | Photo ID of the photo that converted |
| anonymous_user_id             | Anonymous user ID |
| conversion_country            | Country code of the device geolocation |

## 5 - colors.tsv

*Note: The coverage and score data comes from a 3rd party AI*

The `colors.tsv` dataset has one row per major color present in the photo. The dataset tells which colors are contained within a photo, their coverage as a percentage, and a score for how in focus the color is.

| Field                     | Description |
|---------------------------|-------------|
| photo_id                  | ID of the Unsplash photo |
| hex                       | Hexadecimal representation of the color |
| red                       | Red component of the photo in the RGB system |
| green                     | Green component of the photo in the RGB system |
| blue                      | Blue component of the photo in the RGB system |
| keyword                   | Name of the closest color as a [CSS color keyword](https://www.w3schools.com/cssref/css_colors.asp) |
| coverage                  | Pixel coverage of the color as a percentage |
| score                     | Score of the color in the photo (including the notion of focus) |

## Combining datasets

You can merge the different datasets through the primary key ID fields (usually the `photo_id` field). With this you'll be able to cross-reference properties from the photos dataset with data from the keywords or conversions dataset.

----

For help loading the dataset, see the [how to docs](https://github.com/unsplash/datasets/tree/master/how-to/).