ImageQt.py 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)