Canthal Tilt

Do the outer corners of the eyes sit higher than the inner corners?

ImageFacecanthal-tiltVersion 1

Measures the eye axis: the line from the inner corner of each eye to the outer corner. A clear upward tilt reads as alert; a downward tilt reads as tired, whatever the owner's actual sleep schedule.

What it looks for

Outer eye corners set above the inner corners
An almond eye shape with a clean upper lid line
Matching tilt on the left and right eye
A face close enough and level enough to measure

Input

Send one image as a base64 data URL in image: PNG, JPEG, or WebP, at most 3 MiB (3,145,728 bytes) decoded. Text is optional context. A request with an image costs 10 units however many image formulas it names, so batch this one with others such as Jawline and Hunter Eyes, up to 8 per request.

The call returns noul, the probability from 0 to 1 that the answer is yes, and mogs, the verdict. The pass/fail boundary is set on the server and never returned. Use mogs as the decision and noul to rank.

POST /api/v1/mog

# Build the body in a file: a base64 image is too long for a shell argument.
# For a PNG or WebP file, change image/jpeg to image/png or image/webp.
{
  printf '{"formula":"canthal-tilt","image":"data:image/jpeg;base64,'
  base64 < photo.jpg | tr -d '\n'
  printf '"}'
} > body.json

curl https://mogger.dev/api/v1/mog \
  -H "Authorization: Bearer $MOGGER_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @body.json

// Node 18 or later, as an ES module (mog.mjs). Use image/png or image/webp for other file types.
import { readFile } from "node:fs/promises";

const image = "data:image/jpeg;base64," + (await readFile("photo.jpg")).toString("base64");

const res = await fetch("https://mogger.dev/api/v1/mog", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.MOGGER_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ formula: "canthal-tilt", image }),
});
const data = await res.json();
if (!res.ok) throw new Error(`${data.error.code}: ${data.error.message}`);

const { mogs, noul } = data.results["canthal-tilt"];
console.log(mogs, noul);

import base64
import os

import requests

with open("photo.jpg", "rb") as f:
    image = "data:image/jpeg;base64," + base64.b64encode(f.read()).decode("ascii")

res = requests.post(
    "https://mogger.dev/api/v1/mog",
    headers={"Authorization": f"Bearer {os.environ['MOGGER_API_KEY']}"},
    json={"formula": "canthal-tilt", "image": image},
    timeout=60,
)
data = res.json()
if not res.ok:
    raise RuntimeError(f"{data['error']['code']}: {data['error']['message']}")

result = data["results"]["canthal-tilt"]
print(result["mogs"], result["noul"])

# With the mogger skill installed, ask in plain words, for example:
#   Does ./photo.jpg mog on canthal-tilt?
# The skill base64-encodes the file in the shell, so the image
# never enters the model context, and runs:
score_image ./photo.jpg canthal-tilt | jq '.results'

Response

{
  "results": {
    "canthal-tilt": {
      "mogs": true,
      "noul": 0.91,
      "version": 1
    }
  },
  "cost": 10,
  "quota": {
    "remaining": 990,
    "budget": 1000
  },
  "request_id": "req_0MHmB7xKQ2c9tVwLp4ZsYd3R"
}

Example values. Keys are invite only: see Authentication.

Examples

Scored ahead of time with version 1. Each verdict uses the pass/fail boundary in force now.

Antinous, Capitoline bust
DOES NOT MOG
Unknown Roman sculptor. Photo: Jastrow (2006). Public domain. Wikimedia Commons
Nikola Tesla, about 1890
DOES NOT MOG
Napoleon Sarony. Public domain. Wikimedia Commons
Edgar Allan Poe, 1848
DOES NOT MOG
W.S. Hartshorn (1848 daguerreotype). Crop: BorgQueen. Public domain. Wikimedia Commons

Try it

Scored examples show their result at once. Your own image needs an API key and spends 10 units per run.

Formula

Canthal Tilt

Imagecanthal-tilt

Do the outer corners of the eyes sit higher than the inner corners?

Examples

Pre-computed, free

Scores one image, with optional text as context.

Marble bust of Antinous with thick curled hair, Capitoline Museums, Rome

Antinous, Capitoline bust

Encoding

Example image

Any image your browser can open. Resized to 1024 px on the long side and sent as JPEG.

API keyGet a key

Kept in this browser tab only, never sent anywhere but the API.

Costs 10 units

Paste an API key to score your own input. Examples above are free.

Result

Pre-computed

DOES NOT MOG

Antinous, Capitoline bust, scored when the example was added. No request was sent.

POST /api/v1/mog

{
  "formula": "canthal-tilt",
  "image": "data:image/jpeg;base64,… encoding"
}

Response

no request

Pre-computed when the example was added. A live call returns the same results object plus cost, quota, and request_id.

{
  "results": {
    "canthal-tilt": {
      "mogs": false,
      "noul": 0.4837,
      "version": 1
    }
  }
}

Canthal Tilt

What it looks for

Input

Examples

Antinous, Capitoline bust

Nikola Tesla, about 1890

Edgar Allan Poe, 1848

Try it