hydrus/hydrus/core/HydrusPSDTools.py

97 lines
2.7 KiB
Python

from PIL import Image as PILImage
from hydrus.core import HydrusExceptions
from psd_tools import PSDImage
from psd_tools.constants import Resource, ColorMode, Resource
from psd_tools.api.numpy_io import has_transparency, get_transparency_index
from psd_tools.api.pil_io import get_pil_mode, get_pil_channels, _create_image
def PSDHasICCProfile( path: str ):
psd = PSDImage.open( path )
return Resource.ICC_PROFILE in psd.image_resources
def MergedPILImageFromPSD( path: str ) -> PILImage:
psd = PSDImage.open( path )
#pil_image = psd.topil( apply_icc = False )
if psd.has_preview():
pil_image = convert_image_data_to_pil(psd)
else:
raise HydrusExceptions.UnsupportedFileException('PSD file has no embedded preview!')
if Resource.ICC_PROFILE in psd.image_resources:
icc = psd.image_resources.get_data( Resource.ICC_PROFILE )
pil_image.info[ 'icc_profile' ] = icc
return pil_image
def GetPSDResolution( path: str ):
psd = PSDImage.open( path )
return ( psd.width, psd.height )
# modified from psd-tools source:
# https://github.com/psd-tools/psd-tools/blob/main/src/psd_tools/api/pil_io.py
def convert_image_data_to_pil(psd: PSDImage):
alpha = None
channel_data = psd._record.image_data.get_data(psd._record.header)
size = (psd.width, psd.height)
channels = [_create_image(size, c, psd.depth) for c in channel_data]
# has_transparency not quite correct
# see https://github.com/psd-tools/psd-tools/issues/369
# and https://github.com/psd-tools/psd-tools/pull/370
no_alpha = psd._record.layer_and_mask_information.layer_info is not None and psd._record.layer_and_mask_information.layer_info.layer_count > 0
if has_transparency(psd) and not no_alpha:
alpha = channels[get_transparency_index(psd)]
if psd.color_mode == ColorMode.INDEXED:
image = channels[0]
image.putpalette(psd._record.color_mode_data.interleave())
elif psd.color_mode == ColorMode.MULTICHANNEL:
image = channels[0] # Multi-channel mode is a collection of alpha.
else:
mode = get_pil_mode(psd.color_mode)
image = PILImage.merge(mode, channels[:get_pil_channels(mode)])
if not image:
return None
return post_process(image, alpha)
def post_process(image, alpha):
# Fix inverted CMYK.
if image.mode == 'CMYK':
from PIL import ImageChops
image = ImageChops.invert(image)
# In Pillow, alpha channel is only available in RGB or L.
if alpha and image.mode in ('RGB', 'L'):
image.putalpha(alpha)
return image