Image Processing

refer: http://effbot.org/imagingbook/

source: https://github.com/kmike/psd-tools refer API: http://searchcode.babies.vn:8080/source/xref/python2.7/site-packages/psd_tools/user_api/psd_image.py

• windows:

  SET VS90COMNTOOLS=%VS100COMNTOOLS%
  easy_install.exe psd-tools
  easy_install.exe packbits

• linux:

  pip install psd-tools
  pip install packbits

• PSDImage.load return psd_tools.user_api.psd_image.PSDImage object
• psd_tools.user_api.psd_image.PSDImage contain list of objects psd_tools.Group and psd_tools.Layer

Basic Examples:

• Read header and layers:

  from psd_tools import PSDImage
   
  psd = PSDImage.load('1203.psd')
  print psd.header
  print psd.layers

  output:

  PsdHeader(number_of_channels=4, height=1186, width=1181, depth=8, color_mode=CMYK)
  [<psd_tools.Layer: u'COMPANY copy 2', size=528x35, x=286, y=666>, <psd_tools.Layer: u'COMPANY', size=738x88, x=108, y=742>, <psd_tools.Layer: u'Layer 2', size=535x388,
   u'Layer 3', size=1181x1186, x=0, y=0>]

• Save all layers and groups:

  from psd_tools import PSDImage
  from psd_tools.user_api.psd_image import PSDImage as UserImage
   
  psd = PSDImage.load('1203.psd')
  for layer in psd.layers:
      pil_img = layer.as_PIL()
      pil_img.save(layer.name + '.png')

psd.as_PIL() return object PIL.Image.Image

• Simple export

  from psd_tools import PSDImage
  from psd_tools.user_api.psd_image import PSDImage as UserImage
   
  psd = PSDImage.load('1203.psd')
  merge_img = psd.as_PIL()
  merge_img.save('1203.png')

• script export psd to png file:

  from psd_tools import PSDImage
  import sys, os
  import re
  from os import path
   
  def convertpsd2png(psdfilename, outpath = ''):    
      psd = PSDImage.load(psdfilename)
      pil_img = psd.as_PIL()
      pngfilename = re.sub('.psd', '.png', path.basename(psdfilename))
      pngfilename = path.join(outpath, pngfilename)
      if outpath != '' and not path.exists(outpath):
          os.makedirs(outpath)
      print pngfilename
      pil_img.save(pngfilename)
  nargs = len(sys.argv)
  outpath = ''
  if nargs <= 1:
      print 'please input psd file'
      exit()
  elif nargs >=2:
      outpath = sys.argv[2]
  psdfilename = sys.argv[1]
  if path.exists(psdfilename):
      ext = path.splitext(psdfilename)[1]
      if ext == '.psd':
          convertpsd2png(psdfilename, outpath)
      else:
          print 'the extension of file is incorrect'
  else:
      print 'file is not exists:', psdfilename

  script to run for multiple files:

  for /F "delims=\r\n" %x in ('dir /B indir') do psd2png.py indir\%x outdir