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hiroi-sora avatar hiroi-sora commented on May 18, 2024

update：v1.3.2 版的多国语言扩展包已加入纯英文库，可避免此问题。有大量英文ocr需求的用户下载扩展包切换到英文即可。

（楼下指的是v1.3.1的多国语言包，当时还未加入英文。）

我测试了一下，空格识别率低似乎是简体中文模型库的专属毛病，换用繁中/日文/韩文/法文模型库均无此问题。

image

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lioArther avatar lioArther commented on May 18, 2024

我有下载你整理的多语言库。也是同样的结果。
image
必须在这里更改模型库噢

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hiroi-sora avatar hiroi-sora commented on May 18, 2024

空格丢失现象跟图像关系很大。

我测试了很多英文文章截图，对常规样式的文字，并不会频繁出现空格丢失。换用非简中模型库（如繁中）后会进一步减少该现象，几乎可以忽略。
如果画质模糊 / 字体空格间距较小 / 除文本外含有多余的图形 / 多种不同大小、粗细的文本混排（如你贴的例图），确实会增加空格丢失或者识别不准的概率。

目前我不认为这是一个严重的问题，PPOCR引擎在大部分场景中表现良好。如果你还有更多例图，证实在常见场景中，使用非简中库也会频繁出现空格丢失，请贴出来，我再调查一下。

如果确实要改，我还想到一些解决方案，比如使用wordninja等英文分词库进行后处理，补充缺失的空格。以后的版本可能会考虑安排上。

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