swingmusic/app/lib/colorlib.py
Mungai Njoroge 198957bcae
Move server code to this repo (#95)
move server code to this repo
2023-01-13 20:01:52 +03:00

95 lines
2.5 KiB
Python

"""
Contains everything that deals with image color extraction.
"""
import json
from pathlib import Path
import colorgram
from tqdm import tqdm
from app import settings
from app.db.sqlite.albums import SQLiteAlbumMethods as db
from app.db.sqlite.artists import SQLiteArtistMethods as adb
from app.db.sqlite.utils import SQLiteManager
from app.db.store import Store
from app.models import Album, Artist
def get_image_colors(image: str) -> list[str]:
"""Extracts 2 of the most dominant colors from an image."""
try:
colors = sorted(colorgram.extract(image, 1), key=lambda c: c.hsl.h)
except OSError:
return []
formatted_colors = []
for color in colors:
color = f"rgb({color.rgb.r}, {color.rgb.g}, {color.rgb.b})"
formatted_colors.append(color)
return formatted_colors
class ProcessAlbumColors:
"""
Extracts the most dominant color from the album art and saves it to the database.
"""
def __init__(self) -> None:
with SQLiteManager() as cur:
for album in tqdm(Store.albums, desc="Processing album colors"):
if len(album.colors) == 0:
colors = self.process_color(album)
if colors is None:
continue
album.set_colors(colors)
color_str = json.dumps(colors)
db.insert_one_album(cur, album.albumhash, color_str)
@staticmethod
def process_color(album: Album):
path = Path(settings.SM_THUMB_PATH) / album.image
if not path.exists():
return
colors = get_image_colors(str(path))
return colors
class ProcessArtistColors:
"""
Extracts the most dominant color from the artist art and saves it to the database.
"""
def __init__(self) -> None:
all_artists = Store.artists
if all_artists is None:
return
for artist in tqdm(all_artists, desc="Processing artist colors"):
if len(artist.colors) == 0:
self.process_color(artist)
@staticmethod
def process_color(artist: Artist):
path = Path(settings.ARTIST_IMG_SM_PATH) / artist.image
if not path.exists():
return
colors = get_image_colors(str(path))
if len(colors) > 0:
adb.insert_one_artist(artisthash=artist.artisthash, colors=colors)
Store.map_artist_color((0, artist.artisthash, json.dumps(colors)))
# TODO: Load album and artist colors into the store.