mask.c File Reference

Data module masking. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "jabcode.h"
#include "encoder.h"
#include "detector.h"

Macros
#define	W1   100
#define	W2   3
#define	W3   3

Functions
jab_int32	applyRule1 (jab_int32 *matrix, jab_int32 width, jab_int32 height, jab_int32 color_number)
	Apply mask penalty rule 1. More...
jab_int32	applyRule2 (jab_int32 *matrix, jab_int32 width, jab_int32 height)
	Apply mask penalty rule 2. More...
jab_int32	applyRule3 (jab_int32 *matrix, jab_int32 width, jab_int32 height)
	Apply mask penalty rule 3. More...
jab_int32	evaluateMask (jab_int32 *matrix, jab_int32 width, jab_int32 height, jab_int32 color_number)
	Evaluate masking results. More...
void	maskSymbols (jab_encode *enc, jab_int32 mask_type, jab_int32 *masked, jab_code *cp)
	Mask the data modules in symbols. More...
jab_int32	maskCode (jab_encode *enc, jab_code *cp)
	Mask modules. More...
void	demaskSymbol (jab_data *data, jab_byte *data_map, jab_vector2d symbol_size, jab_int32 mask_type, jab_int32 color_number)
	Demask modules. More...

Detailed Description

Data module masking.

libjabcode - JABCode Encoding/Decoding Library

Copyright 2016 by Fraunhofer SIT. All rights reserved. See LICENSE file for full terms of use and distribution.

Contact: Huajian Liu liu@s.nosp@m.it.f.nosp@m.raunh.nosp@m.ofer.nosp@m..de Waldemar Berchtold walde.nosp@m.mar..nosp@m.berch.nosp@m.told.nosp@m.@sit..nosp@m.frau.nosp@m.nhofe.nosp@m.r.de

Function Documentation

jab_int32 applyRule1	(	jab_int32 *	matrix,
		jab_int32	width,
		jab_int32	height,
		jab_int32	color_number
	)

Apply mask penalty rule 1.

Parameters

matrix	the symbol matrix
width	the symbol matrix width
height	the symbol matrix height
color_number	the number of module colors

Returns

the penalty score

jab_int32 applyRule2	(	jab_int32 *	matrix,
		jab_int32	width,
		jab_int32	height
	)

Apply mask penalty rule 2.

Parameters

matrix	the symbol matrix
width	the symbol matrix width
height	the symbol matrix height

Returns

the penalty score

jab_int32 applyRule3	(	jab_int32 *	matrix,
		jab_int32	width,
		jab_int32	height
	)

Apply mask penalty rule 3.

Parameters

matrix	the symbol matrix
width	the symbol matrix width
height	the symbol matrix height

Returns

the penalty score

void demaskSymbol	(	jab_data *	data,
		jab_byte *	data_map,
		jab_vector2d	symbol_size,
		jab_int32	mask_type,
		jab_int32	color_number
	)

Demask modules.

Parameters

data	the decoded data module values
data_map	the data module positions
symbol_size	the symbol size in module
mask_type	the mask pattern reference
color_number	the number of module colors

jab_int32 evaluateMask	(	jab_int32 *	matrix,
		jab_int32	width,
		jab_int32	height,
		jab_int32	color_number
	)

Evaluate masking results.

Parameters

matrix	the symbol matrix
width	the symbol matrix width
height	the symbol matrix height
color_number	the number of module colors

Returns

the penalty score

jab_int32 maskCode	(	jab_encode *	enc,
		jab_code *	cp
	)

Mask modules.

Parameters

enc	the encode parameters
cp	the code parameters

Returns

the mask pattern reference | -1 if fails

void maskSymbols	(	jab_encode *	enc,
		jab_int32	mask_type,
		jab_int32 *	masked,
		jab_code *	cp
	)

Mask the data modules in symbols.

Parameters

enc	the encode parameters
mask_type	the mask pattern reference
masked	the masked symbol matrix
cp	the code parameters