Package gov.nih.mipav.model.file

Class MetadataExtractor.JpegDescriptor

java.lang.Object

gov.nih.mipav.model.file.MetadataExtractor.TagDescriptor<MetadataExtractor.JpegDirectory>

gov.nih.mipav.model.file.MetadataExtractor.JpegDescriptor

Enclosing class:

MetadataExtractor

public class MetadataExtractor.JpegDescriptor
extends MetadataExtractor.TagDescriptor<MetadataExtractor.JpegDirectory>

Provides human-readable string versions of the tags stored in a JpegDirectory. Thanks to Darrell Silver (www.darrellsilver.com) for the initial version of this class.

Author:

Drew Noakes https://drewnoakes.com

Field Summary

Fields

Modifier and Type	Field	Description
static final int	TAG_COMPONENT_DATA_1	the first of a possible 4 color components.
static final int	TAG_COMPONENT_DATA_2	the second of a possible 4 color components.
static final int	TAG_COMPONENT_DATA_3	the third of a possible 4 color components.
static final int	TAG_COMPONENT_DATA_4	the fourth of a possible 4 color components.
static final int	TAG_COMPRESSION_TYPE
static final int	TAG_DATA_PRECISION	This is in bits/sample, usually 8 (12 and 16 not supported by most software).
static final int	TAG_IMAGE_HEIGHT	The image's height.
static final int	TAG_IMAGE_WIDTH	The image's width.

Fields inherited from class gov.nih.mipav.model.file.MetadataExtractor.TagDescriptor

_directory

Constructor Summary

Constructors

Constructor	Description
JpegDescriptor(MetadataExtractor.JpegDirectory directory)

Method Summary

Modifier and Type	Method	Description
String	getComponentDataDescription(int componentNumber)
String	getDataPrecisionDescription()
String	getDescription(int tagType)	Returns a descriptive value of the specified tag for this image.
String	getImageCompressionTypeDescription()
String	getImageHeightDescription()
String	getImageWidthDescription()

Methods inherited from class gov.nih.mipav.model.file.MetadataExtractor.TagDescriptor

convertBytesToVersionString, get7BitStringFromBytes, getBitFlagDescription, getByteLengthDescription, getDecimalRational, getEncodedTextDescription, getEpochTimeDescription, getFocalLengthDescription, getFormattedFloat, getFormattedInt, getFormattedString, getFStopDescription, getIndexedDescription, getIndexedDescription, getLensSpecificationDescription, getOrientationDescription, getRationalOrDoubleString, getShutterSpeedDescription, getSimpleRational, getStringFromBytes, getVersionBytesDescription

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

TAG_COMPRESSION_TYPE

public static final int TAG_COMPRESSION_TYPE

See Also:

• Constant Field Values

TAG_DATA_PRECISION

public static final int TAG_DATA_PRECISION

This is in bits/sample, usually 8 (12 and 16 not supported by most software).

See Also:

• Constant Field Values

TAG_IMAGE_HEIGHT

public static final int TAG_IMAGE_HEIGHT

The image's height. Necessary for decoding the image, so it should always be there.

See Also:

• Constant Field Values

TAG_IMAGE_WIDTH

public static final int TAG_IMAGE_WIDTH

The image's width. Necessary for decoding the image, so it should always be there.

See Also:

• Constant Field Values

TAG_COMPONENT_DATA_1

public static final int TAG_COMPONENT_DATA_1

the first of a possible 4 color components. Number of components specified in TAG_NUMBER_OF_COMPONENTS.

See Also:

• Constant Field Values

TAG_COMPONENT_DATA_2

public static final int TAG_COMPONENT_DATA_2

the second of a possible 4 color components. Number of components specified in TAG_NUMBER_OF_COMPONENTS.

See Also:

• Constant Field Values

TAG_COMPONENT_DATA_3

public static final int TAG_COMPONENT_DATA_3

the third of a possible 4 color components. Number of components specified in TAG_NUMBER_OF_COMPONENTS.

See Also:

• Constant Field Values

TAG_COMPONENT_DATA_4

public static final int TAG_COMPONENT_DATA_4

the fourth of a possible 4 color components. Number of components specified in TAG_NUMBER_OF_COMPONENTS.

See Also:

• Constant Field Values

Constructor Details

JpegDescriptor

public JpegDescriptor(MetadataExtractor.JpegDirectory directory)

Method Details

getDescription

public String getDescription(int tagType)

Description copied from class: MetadataExtractor.TagDescriptor

Returns a descriptive value of the specified tag for this image. Where possible, known values will be substituted here in place of the raw tokens actually kept in the metadata segment. If no substitution is available, the value provided by getString(tagType) will be returned.

Overrides:

getDescription in class MetadataExtractor.TagDescriptor<MetadataExtractor.JpegDirectory>

Parameters:

tagType - the tag to find a description for

Returns:

a description of the image's value for the specified tag, or null if the tag hasn't been defined.

getImageCompressionTypeDescription

public String getImageCompressionTypeDescription()

getImageWidthDescription

public String getImageWidthDescription()

getImageHeightDescription

public String getImageHeightDescription()

getDataPrecisionDescription

public String getDataPrecisionDescription()

getComponentDataDescription

public String getComponentDataDescription(int componentNumber)