convertfiles.c File Reference

#include <string.h>
#include "allheaders.h"

Go to the source code of this file.

Functions
l_ok	convertFilesTo1bpp (const char *dirin, const char *substr, l_int32 upscaling, l_int32 thresh, l_int32 firstpage, l_int32 npages, const char *dirout, l_int32 outformat)

Detailed Description

     Conversion to 1 bpp
         l_int32    convertFilesTo1bpp()

 These are utility functions that will perform depth conversion
 on selected files, writing the results to a specified directory.
 We start with conversion to 1 bpp.

Definition in file convertfiles.c.

Function Documentation

convertFilesTo1bpp()

l_ok convertFilesTo1bpp	(	const char *	dirin,
		const char *	substr,
		l_int32	upscaling,
		l_int32	thresh,
		l_int32	firstpage,
		l_int32	npages,
		const char *	dirout,
		l_int32	outformat )

convertFilesTo1bpp()

Parameters

[in]	dirin
[in]	substr	[optional] substring filter on filenames; 8 can be NULL
[in]	upscaling	1, 2 or 4; only for input color or grayscale
[in]	thresh	global threshold for binarization; 0 for default
[in]	firstpage
[in]	npages	use 0 to do all from firstpage to the end
[in]	dirout
[in]	outformat	IFF_PNG, IFF_TIFF_G4

Returns

0 if OK, 1 on error

  Notes:
       (1) Images are sorted lexicographically, and the names in the
           output directory are retained except for the extension.
  

Definition at line 71 of file convertfiles.c.

References L_NOCOPY, and REMOVE_CMAP_TO_GRAYSCALE.