pillow 导出 psd 内图层的图片，透明区域本应该是白色却多出一些颜色，请问如何解决

<h3>场景：</h3> <p>psd 内图层是 cmyk 颜色模式，想要保留原本颜色进行导出，这边就用 ImageCms.profileToProfile 转换了下，但是，透明区域可以是白色或保持透明，这边是白色，却会多出一些不应该出现的颜色</p> <h3>错误图片,红色圈部分为多出颜色：</h3> <p><img alt="err_img" class="embedded_image" loading="lazy" referrerpolicy="no-referrer" rel="noreferrer" src="https://i.imgur.com/Z5wTYCc.png"></p> <h3>代码如下：</h3> <pre><code class="language-python"> # -- coding:UTF-8 -- from psd_tools import PSDImage from psd_tools.constants import Resource from PIL import ImageCms import os import configparser config = configparser.ConfigParser() config.read("config.ini", encoding="utf-8-sig") def getConfigValue(section, key): return config.get(section, key) # 打开 PSD 文件 psd = PSDImage.open(getConfigValue("custom", 'psd_path')) # 指定分组名称 group_name = '组 1' output_group_folder = 'psd_export_png' sub_group_name = '人物' output_icc_profile = './color_icc/AdobeRGB1998.icc' input_icc_profile = './color_icc/CoatedFOGRA39.icc' # 遍历所有分组图层 for group in psd._layers: if group.is_group() and group.name == group_name: # 如果找到指定名称的分组图层，则导出其包含的图层 os.makedirs(output_group_folder, exist_ok=True) for subgroup in group._layers: if subgroup.is_group() and subgroup.name == sub_group_name: for layer in subgroup._layers: print(layer.name) layer_image = layer.composite() # 如果图像是 CMYK 模式，则进行颜色空间转换 if layer_image.mode == 'CMYK': layer_image = ImageCms.profileToProfile(layer_image, './color_icc/CoatedFOGRA39.icc', './color_icc/AdobeRGB1998.icc', ImageCms.Intent.RELATIVE_COLORIMETRIC, "RGB") layer_image.save(os.path.join(output_group_folder, f'{layer.name}.png'), format="PNG") break </code></pre>