Failed to parse NetParameter file: textbox.prototxt

[protsenkovi]

System information (version)

• OpenCV => 3.3
• Operating System / Platform => CentOS 7.2
• Python => Python 3.6.3 :: Anaconda, Inc.
• Python package => opencv-contrib-python 3.3.0.10

Detailed description

File textbox.prototxt included in samples directory of opencv_contrib is not readable by cv2.dnn.readNetFromCaffe.

This file works: https://github.com/sghoshcvc/TextBox-Models/blob/master/textbox_deploy.prototxt

Error is probably because of additional_y_offset: true.

Steps to reproduce

• Install Anaconda3-5.0.1-Linux-x86_64.sh,
• pip install opencv-contrib-python 3.3.0.10,
• use https://github.com/opencv/opencv_contrib/blob/master/modules/text/samples/textbox.prototxt and
  https://github.com/MhLiao/TextBoxes model
• run python code

import cv2
textDetectorNet = cv2.dnn.readNetFromCaffe('textbox.prototxt',  'TextBoxes_icdar13.caffemodel')

you should get an error

error: /io/opencv/modules/dnn/src/caffe/caffe_io.cpp:1137: error: (-2) FAILED: ReadProtoFromTextFile(param_file, param). Failed to parse NetParameter file: /home/user/textbox.prototxt in function ReadNetParamsFromTextFileOrDie

[Chenhui2018]

Hi @protsenkovi ,

do you know where can I downlond the "TextBoxes_icdar13.caffemodel"?

[protsenkovi]

@Chenhui2018 Hello, you can find a link in github MhLiao/TextBoxes repository, that I've mentioned earlier.

[Chenhui2018]

@protsenkovi Thanks for your reply! I had searched the link https://github.com/MhLiao/TextBoxes , but did not find the files named *.caffemodel.
Is "TextBoxes_icdar13.caffemodel" created by other files? I am not familiar with caffe.

[dkurt]

@protsenkovi, May I ask you to try it again using master branches of OpenCV and OpenCV-contrib? That worked for me last time we updated it (at least textbox_demo.cpp).

@Chenhui2018,

opencv_contrib/modules/text/include/opencv2/text/textDetector.hpp

Line 38 in e8ed375

Model can be downloaded from [DropBox](https://www.dropbox.com/s/g8pjzv2de9gty8g/TextBoxes_icdar13.caffemodel?dl=0).

[protsenkovi]

@dkurt I was using a precompiled version, opencv-contrib-python module.

Unfortunately I don't know how to compile opencv with python support properly to fulfill your request. I tried:

cmake -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules \
-DPYTHON_LIBRARIES=/opt/anaconda3/lib \
-DPYTHON_EXECUTOR=/opt/anaconda3/bin/python \
-DPYTHON_INCLUDE_DIRS=/opt/anaconda3/include \
../opencv

but it didn't find anaconda python paths

Could NOT find PythonLibs (missing:  PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) (Required is exact version "3.5.4")

If you could help me with this I will run a test.