Function could potentially contain any binarycharacter, it is possible to return a ciphertext containing a system delimiter where one did not previously exist.
The experiment results show that the kind of method is superior to other methods, especially on gray or binarycharacter images recognition with low resolution.
实验结果表明，用这种方法识别低分辨率的字符图像，效果优于其他方法。
3
This means that in your application you should prefer binary data types over character types.