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python:imagesprocess

Image Processing

Pillow

Image Module

ImageDraw Module

Psd tools

Install

  • windows:
    SET VS90COMNTOOLS=%VS100COMNTOOLS%
    easy_install.exe psd-tools
    easy_install.exe packbits
  • linux:
    pip install psd-tools
    pip install packbits

Using Psd tools

Read psd file and get header, layers(contain layers and groups)

  • 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')

working with group(psd_tools.Group)

working with layer(psd_tools.Layer)

export psd file to 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
python/imagesprocess.txt · Last modified: 2017/01/12 09:12 (external edit)