pillow 创建图片并添加一些自定义信息

    from PIL import Image
    vm = Image.new('RGBA', (dshape[1], dshape[0]))
    vm = Image.fromarray(np.array(ssddff, dtype=np.uint8))
    from PIL.PngImagePlugin import PngInfo
    metadata = PngInfo()
    # metadata.add_text(f"min{len(str(pmin))}", f'{pmin}')
    # metadata.add_text(f"max{len(str(pmax))}", f'{pmax}')
    metadata.add_text("min", f'{pmin}min')
    metadata.add_text("max", f'{pmax}max')
    vm.save(out_path, pnginfo=metadata)

参考：https://qa.1r1g.com/sf/ask/4087934931/