skewtest.c File Reference

Exploration of various skew finding methods, optionally deskewing the input (binary) image. The best version does a linear sweep followed by a binary (angle-splitting) search. More...

#include "allheaders.h"

Go to the source code of this file.

Defines
#define	DESKEW_REDUCTION   2
#define	SWEEP_RANGE   10.
#define	SWEEP_DELTA   0.2
#define	SWEEP_REDUCTION   2
#define	SWEEP_RANGE2   10.
#define	SWEEP_DELTA2   1.
#define	SWEEP_REDUCTION2   2
#define	SEARCH_REDUCTION   2
#define	SEARCH_MIN_DELTA   0.01
Functions
	main (int argc, char **argv)

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Detailed Description

Exploration of various skew finding methods, optionally deskewing the input (binary) image. The best version does a linear sweep followed by a binary (angle-splitting) search.

Definition in file skewtest.c.

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Define Documentation

#define DESKEW_REDUCTION   2

Definition at line 32 of file skewtest.c.

Referenced by main().

#define SWEEP_RANGE   10.

Definition at line 35 of file skewtest.c.

#define SWEEP_DELTA   0.2

Definition at line 36 of file skewtest.c.

#define SWEEP_REDUCTION   2

Definition at line 37 of file skewtest.c.

#define SWEEP_RANGE2   10.

Definition at line 40 of file skewtest.c.

Referenced by main().

#define SWEEP_DELTA2   1.

Definition at line 41 of file skewtest.c.

Referenced by main().

#define SWEEP_REDUCTION2   2

Definition at line 42 of file skewtest.c.

Referenced by main().

#define SEARCH_REDUCTION   2

Definition at line 43 of file skewtest.c.

Referenced by main().

#define SEARCH_MIN_DELTA   0.01

Definition at line 44 of file skewtest.c.

Referenced by main().

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Function Documentation

main	(	int	argc,
		char **	argv
	)

Definition at line 47 of file skewtest.c.

References DESKEW_REDUCTION, ERROR_INT, filein, IFF_PNG, IFF_TIFF_G4, L_BRING_IN_WHITE, L_ROTATE_AREA_MAP, L_SHEAR_ABOUT_CENTER, L_SHEAR_ABOUT_CORNER, L_WARNING, NULL, pixClone(), pixConvertTo1(), pixDeskew(), pixDestroy(), pixFindSkew(), pixFindSkewSweepAndSearch(), pixFindSkewSweepAndSearchScorePivot(), pixGetDepth(), pixRead(), pixRotate(), pixWrite(), pixWriteImpliedFormat(), SEARCH_MIN_DELTA, SEARCH_REDUCTION, SWEEP_DELTA2, SWEEP_RANGE2, and SWEEP_REDUCTION2.