转换报错了, 可能是依赖的库 API 有重大更新

[I-Want-ToBelieve]

环境信息

python --version
Python 3.9.1

pip list
Package                 Version
----------------------- ---------
astroid                 2.5.6
autopep8                1.5.7
beautifulsoup4          4.9.3
bs4                     0.0.1
certifi                 2020.12.5
cffi                    1.14.5
chardet                 4.0.0
colorama                0.4.4
cycler                  0.10.0
dlib                    19.22.0
face-recognition        1.3.0
face-recognition-models 0.3.0
greenlet                1.0.0
idna                    2.10
isort                   5.8.0
kiwisolver              1.3.1
lazy-object-proxy       1.6.0
matplotlib              3.4.2
mccabe                  0.6.1
mpv-remote-app          0.0.3
msgpack                 1.0.2
numpy                   1.20.2
opencv-python           4.3.0.38
Pillow                  8.2.0
pip                     21.1.2
prettytable             2.1.0
psutil                  5.8.0
pycodestyle             2.7.0
pycparser               2.20
pycryptodome            3.10.1
pylint                  2.8.2
pynvim                  0.4.3
pyparsing               2.4.7
PySocks                 1.7.1
python-bidi             0.4.2
python-dateutil         2.8.1
PyYAML                  5.4.1
qrcode                  6.1
requests                2.25.1
setuptools              49.2.1
shadowsocksr-cli        2.1.2
six                     1.15.0
soupsieve               2.2.1
toml                    0.10.2
urllib3                 1.26.4
wcwidth                 0.2.5
wrapt                   1.12.1

重现步骤

cd ~
git clone https://github.com/fkxxyz/ssfconv.git
git clone https://github.com/xiaochunjimmy/Sogou-Input-Skin.gi
./ssfconv -t fcitx5 ./Sogou-Input-Skin/for_windows/Boundary.ssf ./Boundary

报错日志

image_path ./Boundary/skin2_2.png
size (22, 22)
a.shape (22, 22)
Traceback (most recent call last):
File "/home/backtolife/git.workspace/fork.workspace/ssfconv/./ssfconv", line 1214, in
exit(main(args))
File "/home/backtolife/git.workspace/fork.workspace/ssfconv/./ssfconv", line 1186, in main
result = ssf2fcitx5(skin_dir)
File "/home/backtolife/git.workspace/fork.workspace/ssfconv/./ssfconv", line 830, in ssf2fcitx5
back_color = findBackgroundColor()
File "/home/backtolife/git.workspace/fork.workspace/ssfconv/./ssfconv", line 812, in findBackgroundColor
return getImageAvg(skin_dir + os.sep + image_name,
File "/home/backtolife/git.workspace/fork.workspace/ssfconv/./ssfconv", line 119, in getImageAvg
if a.shape[2] == 4:
IndexError: tuple index out of range