Connected components in binary images: the detection problem
Connected components in binary images: the detection problem
Automated entry system for printed documents
Pattern Recognition
A general approach to connected-component labeling for arbitrary image representations
Journal of the ACM (JACM)
Skew correction of document images using interline cross-correlation
CVGIP: Graphical Models and Image Processing
Document image analysis
Estimation of skew angle in text-image by SLIDE: subspace-based line detection
Machine Vision and Applications
An improved document skew angle estimation technique
Pattern Recognition Letters
Algorithm for text page up/down orientation determination
Pattern Recognition Letters
Digital Image Processing
Introduction to Algorithms
The Document Spectrum for Page Layout Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Skew and Slant Correction for Document Images Using Gradient Direction
ICDAR '97 Proceedings of the 4th International Conference on Document Analysis and Recognition
Projection profile based skew estimation algorithm for JBIG compressed images
ICDAR '97 Proceedings of the 4th International Conference on Document Analysis and Recognition
A simple and efficient skew detection algorithm via text row accumulation
ICDAR '95 Proceedings of the Third International Conference on Document Analysis and Recognition (Volume 2) - Volume 2
A Data Reduction method for Efficient Document Skew Estimation Based on Hough Transformation
ICPR '96 Proceedings of the International Conference on Pattern Recognition (ICPR '96) Volume III-Volume 7276 - Volume 7276
A new rotation algorithm for monochromatic images
Proceedings of the 2005 ACM symposium on Document engineering
BigBatch: a toolbox for monochromatic documents
Proceedings of the 2005 ACM symposium on Document engineering
Automatic document orientation detection and categorization through document vectorization
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
BigBatch: a document processing platform for clusters and grids
Proceedings of the 2008 ACM symposium on Applied computing
Orientation detection of major Indian scripts
Proceedings of the International Workshop on Multilingual OCR
Entropy based skew correction of document images
PReMI'07 Proceedings of the 2nd international conference on Pattern recognition and machine intelligence
Fast and robust skew estimation of scanned documents through background area information
Pattern Recognition Letters
Recognition driven page orientation detection
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Content recognition and indexing in the LiveMemory platform
GREC'09 Proceedings of the 8th international conference on Graphics recognition: achievements, challenges, and evolution
A memetic algorithm for reconstructing cross-cut shredded text documents
HM'10 Proceedings of the 7th international conference on Hybrid metaheuristics
Document image analysis: issues, comparison of methods and remaining problems
Artificial Intelligence Review
A new algorithm for segmenting warped text-lines in document images
Proceedings of the 2011 ACM Symposium on Applied Computing
Thanatos: automatically retrieving information from death certificates in Brazil
Proceedings of the 2011 Workshop on Historical Document Imaging and Processing
BigBatch – an environment for processing monochromatic documents
ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part II
A new method for text-line segmentation for warped documents
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part II
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Very often in the digitization process, documents are either not placed with the correct orientation or are rotated of small angles in relation to the original image axis. These factors make more difficult the visualization of images by human users, increase the complexity of any sort of automatic image recognition, degrade the performance of OCR tools, increase the space needed for image storage, etc. This paper presents a fast algorithm for orientation and skew detection for complex monochromatic document images, which is capable of detecting any document rotation at a high precision.