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Table 1 Comparison of tools and methods published

From: A review of optical chemical structure recognition tools

Tool name

Programming language used

Operating System compatibility

Open-source

Commercial or free availability (2020)

Ongoing development

Kekulé

C +  + 

Windows

No

Yes

No

OROCS

C

IBM OS/2

No

No

No

CLiDE Pro

C +  + 

Windows

No

Yes

Yes

OSRA

C +  + 

Independent

Yesa

Yes

Yes

ChemReader

C +  + 

Windows

No

No

No

MolRec

Unknown

Unknown

No

No

Unknown

Imago

C +  + 

Independent

Yes

Yes

No

ChemOCR

Java

Independent

No

Yes

Yes

ChemInfty

Unknown

Windows

No

No

No

eChem

Unknown

Unknown

No

No

No

MLOCSR

Unknown

Only Web interface

No

Only web interface

Unknown

OCSR

Unknown

Unknown

No

No

Unknown

ChemRobot

Unknown

Unknown

No

No

Unknown

MolVec

Java

Independent

Yes

Yes

Yes

MSE-DUDL

Python

Independent

No

No

No

Chemgrapher

Python

Independent

No

No

Yes

  1. aPrecompiled tool is only available commercially