Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Efficient Binary and Run Length Morphology and its Application to
  Document Image Processing   This paper describes the implementation and evaluation of an open source
library for mathematical morphology based on packed binary and run-length
compressed images for document imaging applications. Abstractions and patterns
useful in the implementation of the interval operations are described. A number
of benchmarks and comparisons to bit-blit based implementations on standard
document images are provided.

10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
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The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas