pixellink代码的报错解决

一、在训练之前，需要运行icdar2015_to_tfrecords.py，对图像进行处理

二、代码运行时，可能会出现：

tensorflow.python.framework.errors_impl.InvalidArgumentError: Cannot assign a device for operation clone_0/pixel_cls_loss/strided_slice_2: Could not satisfy explicit device specification '/device:GPU:0' because no supported kernel for GPU devices is available.