OpenCV  4.3.0-dev
Open Source Computer Vision
Classes

Classes

struct  cv::datasets::tag
 
class  cv::datasets::TR_chars
 
struct  cv::datasets::TR_charsObj
 
class  cv::datasets::TR_icdar
 
struct  cv::datasets::TR_icdarObj
 
class  cv::datasets::TR_svt
 
struct  cv::datasets::TR_svtObj
 
struct  cv::datasets::word
 

Detailed Description

The Chars74K Dataset

Implements loading dataset:

"The Chars74K Dataset": http://www.ee.surrey.ac.uk/CVSSP/demos/chars74k/

Usage:

  1. From link above download dataset files: EnglishFnt\EnglishHnd\EnglishImg\KannadaHnd\KannadaImg.tgz, ListsTXT.tgz.
  2. Unpack them.
  3. Move .m files from folder ListsTXT/ to appropriate folder. For example, English/list_English_Img.m for EnglishImg.tgz.
  4. To load data, for example "EnglishImg", run:
    ./opencv/build/bin/example_datasets_tr_chars -p=/home/user/path_to_unpacked_folder/English/

The Street View Text Dataset

Implements loading dataset:

"The Street View Text Dataset": http://vision.ucsd.edu/~kai/svt/

Usage:

  1. From link above download dataset file: svt.zip.
  2. Unpack it.
  3. To load data run:
    ./opencv/build/bin/example_datasets_tr_svt -p=/home/user/path_to_unpacked_folder/svt/svt1/

Benchmark

For this dataset was implemented benchmark with accuracy (mean f1): 0.217

To run benchmark execute:

./opencv/build/bin/example_datasets_tr_svt_benchmark -p=/home/user/path_to_unpacked_folders/svt/svt1/