When using a valid image file it works fine.
使用有效的图像文件,它正常工作时。
For example, we do not validate that length is a positive number big enough for a meaningful ruler or that the file specified is a valid image file type for ImageMagick.
例如,对于长度是不是对一个有意义的标尺足够大的正数值,或者指定的文件是不是ImageMagick的有效图像文件类型,我们没有进行验证。
To run it you must complete the perform document with a valid URL pointing to the image file by replacing the following comment in the perform document with the binary file location.
要运行它,通过用二进制文件位置来更换执行文档中的以下注释,您必须使用指向图像文件的有效URL来填充执行文档。
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