# Image credits

All photographs in this folder come from Wikimedia Commons and are used under
the licence stated for each file. They are not covered by the MIT licence of
the AgroYachay source code.

Changes made for AgroYachay: every image was downscaled (maximum width 1920 px for
`hero.jpg`, 1200–1400 px for the others), recompressed as progressive JPEG and
stripped of embedded metadata. `sensor.jpg` was additionally cropped to a
landscape frame around the ESP32 board. Files derived from CC BY-SA originals
are distributed under the same CC BY-SA licence.

| File | Title | Author | Source | Licence |
|---|---|---|---|---|
| `hero.jpg` | Incan terraces at Moray and a beautiful skyline | Sucram Yef | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Incan_terraces_at_Moray_and_a_beautiful_skyline.jpg) (from [Flickr](https://www.flickr.com/photos/sucramyef2/48898979898/)) | [CC BY 2.0](https://creativecommons.org/licenses/by/2.0/) |
| `terraces.jpg` | Pisac terraces | Ricardo Sánchez | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Pisac_terraces.jpg) (from [Flickr](https://www.flickr.com/photos/foolonhill/3814986846/)) | [CC BY 2.0](https://creativecommons.org/licenses/by/2.0/) |
| `potato-field.jpg` | Cultivo de papa en Puno | Bernardo Valentin | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cultivo_de_papa_en_Puno.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `quinoa.jpg` | Quinoa growing on Isla del Sol, Lake Titicaca | Bob Ramsak | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Quinoa_growing_on_Isla_del_Sol,_Lake_Titicaca.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `farmer.jpg` | Siembra de papa | NAntequera | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Siembra_de_papa.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `altiplano.jpg` | Luquina en la Península de Capachica en Puno | magicmonkey | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Luquina_en_la_Peninsula_de_Capachica_en_Puno.jpg) (from [Flickr](https://www.flickr.com/photos/magickevin/3229784810/)) | [CC BY 2.0](https://creativecommons.org/licenses/by/2.0/) |
| `harvest.jpg` | Cosecha papa | CLAUDIOLD | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cosecha_papa.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `leaf.jpg` | Potato Late Blight | Björn Andersson (SLU) | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Potato_Late_Blight.JPG) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `market.jpg` | Mercado Modelo de Huancayo Peru – Solanum tuberosum varieties V | Thayne Tuason | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Mercado_Modelo_de_Huancayo_Peru-_Solanum_tuberosum_varieties_V.jpg) | [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) |
| `soil.jpg` | What does healthy soil look like? Photos from Davison County, SD, photo 1 of 2 | USDA Natural Resources Conservation Service, South Dakota | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:What_does_healthy_soil_look_like%3F_Photos_from_Davison_County,_SD_photo_1_of_2_(13902666248).jpg) | Public domain (work of the United States federal government) |
| `sensor.jpg` | ESP32 Dev Board | Edwiyanto | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:ESP32_Dev_Board.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `auth.jpg` | Chinchero, Angled Agricultural Terraces | Steve Fung | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Chinchero,_Angled_Agricultural_Terraces.jpg) (from [Flickr](https://www.flickr.com/photos/stevehfung/54686273939/)) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |

## Content notes

- `hero.jpg`, `terraces.jpg`, `auth.jpg`: Inca agricultural terraces at Moray,
  Pisac and Chinchero (Cusco, Peru).
- `potato-field.jpg`: flowering potato crop, Puno region, Peru.
- `quinoa.jpg`: red quinoa panicles on Isla del Sol, Lake Titicaca, Bolivia.
- `farmer.jpg`: potato sowing with an ox team, Bolivia; people appear only at a
  distance.
- `altiplano.jpg`: farmed shore of Lake Titicaca at Luquina, Capachica
  peninsula, Puno, Peru.
- `harvest.jpg`: potato harvest under *ayni* (reciprocal labour), Bolivian
  Altiplano; faces are turned away or shaded.
- `leaf.jpg`: potato leaf with a late blight (*Phytophthora infestans*) lesion
  and sporulation.
- `market.jpg`: native potato varieties at the Mercado Modelo, Huancayo, Peru.
- `soil.jpg`: crumb structure of a soil core under crop residue.
- `sensor.jpg`: ESP32 DevKit board of the type used by the AgroYachay sensing node.

When an image is shown on a public page, the attribution above should be
reachable from that page, for example through a "Photo credits" link in the
footer.

## Crop photographs (`crops/`)

Changes made for AgroYachay: each image was centre-cropped to 4:3 and downscaled to
1400×1050 px (`<name>.jpg`), plus a 480×480 centre (or bottom) square crop
(`<name>-thumb.jpg`); all were recompressed as progressive JPEG and stripped of
embedded metadata. Files derived from CC BY-SA originals are distributed under
the same CC BY-SA licence.

| File | Title | Author | Source | Licence |
|---|---|---|---|---|
| `crops/potato.jpg`, `crops/potato-thumb.jpg` | Flor de papa en Concepción, Junín 03 | Guillermo Carlos Gómez | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Flor_de_papa_en_Concepci%C3%B3n,_Jun%C3%ADn_03.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `crops/quinoa.jpg`, `crops/quinoa-thumb.jpg` | Quinoa diversity, Uyuni, Bolivia | Michael Hermann | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Quinoa_diversity,_Uyuni,_Bolivia.JPG) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `crops/maize.jpg`, `crops/maize-thumb.jpg` | Peruvian corn | Jenny Mealing | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Peruvian_corn.jpg) (from Flickr) | [CC BY 2.0](https://creativecommons.org/licenses/by/2.0/) |
| `crops/faba_bean.jpg`, `crops/faba_bean-thumb.jpg` | Habas creciendo en Copacabana, Bolivia | Carlillasa | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Habas_creciendo_en_Copacabana,_Bolivia.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `crops/oca.jpg`, `crops/oca-thumb.jpg` | OxalisTuberosa | Markus Leupold-Löwenthal | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:OxalisTuberosa.jpg) | [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/) |
| `crops/canihua.jpg`, `crops/canihua-thumb.jpg` | Canihua (Chenopodium pallidicaule) | Crops for the Future | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Canihua_(Chenopodium_pallidicaule).jpg) | [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/) |
| `crops/barley.jpg`, `crops/barley-thumb.jpg` | Cultivo de cebada 01 | Guillermo Carlos Gómez | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cultivo_de_cebada_01.jpg) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) |
| `crops/wheat.jpg`, `crops/wheat-thumb.jpg` | Wheat Field and Countryside at Tarabuco – Bolivia | Adam Jones | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Wheat_Field_and_Countryside_at_Tarabuco_-_Bolivia_(3776345111).jpg) (from Flickr) | [CC BY-SA 2.0](https://creativecommons.org/licenses/by-sa/2.0/) |
| `crops/other.jpg`, `crops/other-thumb.jpg` | Cultivos en Ayaviri Yauyos | Ayavirí Yauyos | [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cultivos_en_Ayaviri_Yauyos.jpg) | [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/) |

### Content notes (crops)

- `potato`: purple potato flowers in a field at Concepción, Junín, Peru.
- `quinoa`: rows of red, purple and yellow quinoa varieties near Uyuni, Bolivia (3800 m).
- `maize`: cobs of native Peruvian maize varieties (harvested product).
- `faba_bean`: faba bean plant with green pods, Copacabana, Bolivia.
- `oca`: harvested yellow, pink and black oca tubers (Peruvian varieties).
- `canihua`: red and yellow cañihua plants in front of a barley plot, Altiplano near Lake Titicaca; adobe houses in the distance.
- `barley`: barley ears against the sky, Concepción, Junín, Peru.
- `wheat`: ripe wheat field with mountains, Tarabuco, Chuquisaca, Bolivia.
- `other`: small-plot mixed chacra with potato rows and valley terraces, Ayaviri, Yauyos, Lima region, Peru.