from PIL import Image
from pillow_heif import register_heif_opener

register_heif_opener()

im = Image.open("image.heic")  # do whatever need with a Pillow image
im = im.rotate(13)
im.save(f"rotated_image.heic", quality=90)

import cv2
import pillow_heif

cv_img = cv2.imread("16bit_with_alpha.png", cv2.IMREAD_UNCHANGED)
heif_file = pillow_heif.from_bytes(
    mode="BGRA;16",
    size=(cv_img.shape[1], cv_img.shape[0]),
    data=bytes(cv_img)
)
heif_file.save("RGBA_10bit.heic", quality=-1)

import numpy as np
import cv2
import pillow_heif

heif_file = pillow_heif.open_heif("image.heic", convert_hdr_to_8bit=False, bgr_mode=True)
np_array = np.asarray(heif_file)
cv2.imwrite("image.png", np_array)

import pillow_heif

if pillow_heif.is_supported("image.heic"):
    heif_file = pillow_heif.open_heif("image.heic", convert_hdr_to_8bit=False)
    print("image size:", heif_file.size)
    print("image mode:", heif_file.mode)
    print("image data length:", len(heif_file.data))
    print("image data stride:", heif_file.stride)

import numpy as np
import pillow_heif

if pillow_heif.is_supported("input.heic"):
    heif_file = pillow_heif.open_heif("input.heic")
    np_array = np.asarray(heif_file)

import pillow_heif

pillow_heif.register_avif_opener()