Opens HEIF files

Accesses aux dictionary

Iterates aux types

Uses get_aux_image

Extracts aux properties

Uses from_bytes()

Handles RGB mode

Handles RGBA mode

Saves HeifFile bytes

Reads HeifFile bytes

Accesses size property

Accesses mode property

Format validation

File opening

Primary image access

MIME type extraction

Multi-image handling

Image property access

File opening

NCLX profile reading

Transfer characteristic modification

NCLX profile writing

File saving

HEIF file opening

Thumbnail detection

Thumbnail count

Box size access

Thumbnail extraction

Thumbnail saving

Image loading

EXIF object creation

EXIF tag setting

HEIF conversion

EXIF embedding

Quality setting

Open HEIF/AVIF file

Access XMP metadata

Decode XMP bytes

Handle missing XMP

Pillow Integration

Format Selection

Quality Control

Lossless Encoding

Alpha Channel

File Handling

Pickle module usage

HeifFile serialization

HeifFile deserialization

Image data preservation

Multi-image support

Metadata preservation

Use from_pillow()

Save HeifFile

Quality parameter

EXIF preservation

Output path handling