Freckles Results Scheme
Freckles are characterised by small spots with higher pigmentation than the surrounding skin. This type of pigmentation can be distinguished from others by its lighter appearance. Freckles can appear on all skin types. Freckles can appear on various parts of the face, but they are most often found in the middle third of the face.
"algorithm_tech_name": "freckles"
Metric
Algorithm returns the density of freckles on a face.
"main_metric": {
"value": "4",
"name": "Freckles density",
"tech_name": "freckles_density"
},Mask
The algorithm returns several vectorised masks of freckles for an image aligned with the face.
For a batch mode, all masks for left and right side pictures are attached to the frontal image result.
For single image analysis - only frontal mask is available. For a batch - left, front and right masks are available.
Front Result Mask
"mask_type": "polygon_mask""tech_name": "freckles_mask_restored""side": "front"featuresgeometry"type": "Multipolygon"
Left Result Mask
"tech_name": "freckles_mask_restored"
"side": "left"
Right Result Mask
"tech_name": "freckles_mask_restored"
"side": "right"
Example:
Metric structure follows the generic scheme of metric:
Generic Algorithm Metric SchemeMetric name: pigmentation.freckles
Pigmentation PRO App contains masks only for restored images!
JSON object:
{
"id": "978d4d41-0c26-4853-81ed-db877811f3dc",
"result": {
"revision": "master-25cce909",
"image_type": "selfie",
"area_results": [
{
"area_name": "face",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 1,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
},
{
"area_name": "chin",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
},
{
"area_name": "nose",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
},
{
"area_name": "forehead",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
},
{
"area_name": "left_cheek",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
},
{
"area_name": "right_cheek",
"main_metric": {
"name": "Freckles density",
"units": "percentage",
"value": 0,
"tech_name": "freckles_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
},
"sub_metrics": [
{
"name": "Number of regions",
"units": null,
"value": 1,
"tech_name": "area_regions_number",
"widget_meta": null,
"widget_type": "numeric",
"widget_show": true
},
{
"name": "Density of regions",
"units": null,
"value": 0,
"tech_name": "area_regions_density",
"widget_meta": null,
"widget_type": "percentage",
"widget_show": true
}
]
}
],
"algorithm_tech_name": "freckles",
"masks_restored": [
{
"type": "FeatureCollection",
"mask_type": "polygon_mask",
"features": [
{
"type": "feature",
"geometry": {
"type": "MultiPolygon",
"coordinates": [
[
[
[
816,
1243
],
[
817,
1256
],
[
830,
1255
],
[
829,
1242
]
]
]
]
},
"properties": {
"intensity": 1
}
}
],
"view_box": "0 0 2416 2416",
"name": "Freckles Mask",
"tech_name": "freckles_mask_restored",
"fill": "#D9580F",
"side": "front"
}
],
"masks_original": []
},
"is_ok": true,
"image_id": "245a25a8-a5a6-44ed-980c-b4341281389e",
"algorithm_version_id": 106,
"creation_time": "2025-02-26 10:50:40",
"application_id": "e9e18cba-e6a8-4d32-91f8-3cd3d1069b9b",
"application_name": "Pigmentation",
"application_description": "Pigmentation",
"application_run_id": "40e8bbfa-916b-4a71-b06e-c97ca06bccb1",
"image_type": "selfie",
"algorithm_family_tech_name": "pigmentation.freckles"
}Last updated
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