[Bug]: 无法处理透明图片

[fatecyx]

Issue

如图

原图

Command Line Arguments

Console logs

[popcion]

因为透明图片根本没位置涂字，除非主动加个对比度高的背景板。

有个想法是先检测图片是否有透明通道，如果有透明通道，用自带的OCR检测字体颜色然后反转这个颜色，自动添加带反转后颜色的背景板然后再进行涂字，这样对比度高。
可以设置对应参数：参数1：是/否启用对透明图片的处理 参数2：自动/自定义设定背景板颜色。

有人有想法可以帮忙加。

ENG
Since there is no place to render on transparent images unless a background is actively added, I have an idea:

First, detect whether the image has a transparency Alpha channel. If it does, use the OCR to detect the font color and then invert that color. Automatically add a background with the inverted color, and then proceed to render the text.
Can set the corresponding parameters:
Enable/Disable processing for transparent images.
Automatic/Custom setting for the background color on transparent images.
If anyone has the ability and is interested, you can help try modifying the code.