SpiderImagePlugin.py 文件源码

def _save(im, fp, filename):
    if im.mode[0] != "F":
        im = im.convert('F')

    hdr = makeSpiderHeader(im)
    if len(hdr) < 256:
        raise IOError("Error creating Spider header")

    # write the SPIDER header
    try:
        fp = open(filename, 'wb')
    except:
        raise IOError("Unable to open %s for writing" % filename)
    fp.writelines(hdr)

    rawmode = "F;32NF"  # 32-bit native floating point
    ImageFile._save(im, fp, [("raw", (0, 0)+im.size, 0, (rawmode, 0, 1))])

    fp.close()