java运行MainDemo,出现如下问题

这是什么问题？

控制台如下：
License Set Successfully
inFilePath: "E:/technology/OCRLater/SampleImages/08.jpg"
outFilePath: "E:/technology/OCRLater/SampleImages/09.tif"
outputFormat: TIF
imageProcessingCommand: INVERTED_TEXT
outputBPP: 1
File not found

*************************************************************
LEADTOOLS 20 License Notice
This application has been developed without a runtime license or with an EVAL runtime license for the LEADTOOLS SDK.
In order to legally deploy the application, the developer must first obtain a release runtime license.
If you believe you are getting this message in error, contact LEAD Technologies, Inc. at www.leadtools.com or 704-332-5532.
Without a valid runtime license, this library will expire in the future.
Expiration Date = 05/10/2018
*************************************************************
这样是否算是激活了key?

控制台如下：
License Set Successfully
inFilePath: "E:/technology/OCRLater/SampleImages/08.jpg"
outFilePath: "E:/technology/OCRLater/SampleImages/09.tif"
outputFormat: TIF
imageProcessingCommand: INVERTED_TEXT
outputBPP: 1
File not found

*************************************************************
LEADTOOLS 20 License Notice
This application has been developed without a runtime license or with an EVAL runtime license for the LEADTOOLS SDK.
In order to legally deploy the application, the developer must first obtain a release runtime license.
If you believe you are getting this message in error, contact LEAD Technologies, Inc. at www.leadtools.com or 704-332-5532.
Without a valid runtime license, this library will expire in the future.
Expiration Date = 05/10/2018
*************************************************************
这样是否算是激活了key?

您好，是已经激活了评估版本的key
http://www.grapecity.com.cn/blogs/leadtools-ocr-java-startup

关于另一个错误，应该是错误提示里的libpath中的文件找不到，这个是相对路径引起的错误

License Set Successfully
inFilePath: E:/technology/OCRLater/SampleImages/08.jpg
outFilePath: E:/technology/OCRLater/SampleImages/09.tif
outputFormat: TIF
imageProcessingCommand: INVERTED_TEXT
outputBPP: 1
Exception: Invalid bits/pixel

这个异常是什么原因造成的？

不支持的图片位深

这个一般是图片处理命令可能只支持1位深的图片，您用其他的位深就会引起错误

是否有教程指导javascript以及java进行图片处理？
java的方法是否有API文档？

接口文档见下面的链接，有各个命令的接口使用方法，但是例子是以.net来写的，使用方法相同

https://www.leadtools.com/help/l ... /to/assemblies.html

您好，如果想看截取，遮盖效果的例子，应该去哪里看？

截取
https://www.leadtools.com/help/l ... ng-cropcommand.html

遮盖（合并）
https://www.leadtools.com/help/l ... inefastcommand.html

在开发包的这个demo中就有相关效果演示