org.apache.commons.imaging

Class Imaging

java.lang.Object

org.apache.commons.imaging.Imaging

public final class Imaging
extends java.lang.Object

The primary application programming interface (API) to the Imaging library.

Application Notes

Using this class

Almost all of the Apache Commons Imaging library's core functionality can be accessed through the methods provided by this class. The use of the Imaging class is similar to the Java API's ImageIO class, though Imaging supports formats not included in the standard Java API.

All of methods provided by the Imaging class are declared static.

The Apache Commons Imaging package is a pure Java implementation.

Format support

While the Apache Commons Imaging package handles a number of different graphics formats, support for some formats is not yet complete. For the most recent information on support for specific formats, refer to Format Support at the main project development web site.

Optional parameters for image reading and writing

Many of the operations provided in this class as static calls can be accessed directly using format-specific ImageParser instances. These static methods are provided for convenience in simple use cases.

Example code

See the source of the SampleUsage class and other classes in the org.apache.commons.imaging.examples package for examples.

See Also:

org.apache.commons.imaging.examples.SampleUsage, Format Support

Method Summary

Modifier and Type	Method and Description
static java.lang.String	dumpImageFile(byte[] bytes) Write the ImageInfo and format-specific information for the image content of the specified byte array to a string.
static java.lang.String	dumpImageFile(java.io.File file) Write the ImageInfo and format-specific information for the image content of the specified file to a string.
static java.util.List<java.awt.image.BufferedImage>	getAllBufferedImages(byte[] bytes) Gets all images specified by the byte array (some formats may include multiple images within a single data source).
static java.util.List<java.awt.image.BufferedImage>	getAllBufferedImages(java.io.File file) Gets all images specified by the file (some formats may include multiple images within a single data source).
static java.util.List<java.awt.image.BufferedImage>	getAllBufferedImages(java.io.InputStream is, java.lang.String fileName) Gets all images specified by the InputStream (some formats may include multiple images within a single data source).
static java.awt.image.BufferedImage	getBufferedImage(byte[] bytes) Reads the first image from a byte array.
static java.awt.image.BufferedImage	getBufferedImage(java.io.File file) Reads the first image from a file.
static java.awt.image.BufferedImage	getBufferedImage(java.io.InputStream is) Reads the first image from an InputStream.
static java.awt.image.BufferedImage	getBufferedImage(java.io.InputStream is, java.lang.String fileName) Reads the first image from an InputStream.
static FormatCompliance	getFormatCompliance(byte[] bytes) Attempts to determine the image format of the specified data and evaluates its format compliance.
static FormatCompliance	getFormatCompliance(java.io.File file) Attempts to determine the image format of the specified data and evaluates its format compliance.
static java.awt.color.ICC_Profile	getICCProfile(byte[] bytes) Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.
static java.awt.color.ICC_Profile	getICCProfile(java.io.File file) Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.
static java.awt.color.ICC_Profile	getICCProfile(java.io.InputStream is, java.lang.String fileName) Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.
static byte[]	getICCProfileBytes(byte[] bytes) Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.
static byte[]	getICCProfileBytes(java.io.File file) Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.
static ImageInfo	getImageInfo(byte[] bytes) Parses the "image info" of an image.
static ImageInfo	getImageInfo(java.io.File file) Parses the "image info" of an image file.
static ImageInfo	getImageInfo(java.io.InputStream is, java.lang.String fileName) Parses the "image info" of an image.
static ImageInfo	getImageInfo(java.lang.String fileName, byte[] bytes) Parses the "image info" of an image.
static java.awt.Dimension	getImageSize(byte[] bytes) Determines the width and height of an image.
static java.awt.Dimension	getImageSize(ByteSource byteSource) Determines the width and height of an image byte source.
static java.awt.Dimension	getImageSize(java.io.File file) Determines the width and height of an image file.
static java.awt.Dimension	getImageSize(java.io.InputStream is, java.lang.String fileName) Determines the width and height of an image.
static org.apache.commons.imaging.common.ImageMetadata	getMetadata(byte[] bytes) Parses the metadata of an image.
static org.apache.commons.imaging.common.ImageMetadata	getMetadata(java.io.File file) Parses the metadata of an image file.
static org.apache.commons.imaging.common.ImageMetadata	getMetadata(java.io.InputStream is, java.lang.String fileName) Parses the metadata of an image file.
static java.lang.String	getXmpXml(byte[] bytes) Extracts the embedded XML metadata as an XML string.
static java.lang.String	getXmpXml(ByteSource byteSource) Extracts the embedded XML metadata as an XML string.
static java.lang.String	getXmpXml(java.io.File file) Extracts the embedded XML metadata as an XML string.
static java.lang.String	getXmpXml(java.io.InputStream is, java.lang.String fileName) Extracts the embedded XML metadata as an XML string.
static ImageFormat	guessFormat(byte[] bytes) Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.
static ImageFormat	guessFormat(ByteSource byteSource) Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.
static ImageFormat	guessFormat(java.io.File file) Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.
static boolean	hasImageFileExtension(java.io.File file) Attempts to determine if a file contains an image recorded in a supported graphics format based on its file-name extension (for example ".jpg", ".gif", ".png", etc.).
static boolean	hasImageFileExtension(java.lang.String fileName) Attempts to determine if a file contains an image recorded in a supported graphics format based on its file-name extension (for example ".jpg", ".gif", ".png", etc.).
static void	writeImage(java.awt.image.BufferedImage src, java.io.File file, ImageFormat format) Writes the content of a BufferedImage to a file using the specified image format.
static void	writeImage(java.awt.image.BufferedImage src, java.io.OutputStream os, ImageFormat format) Writes the content of a BufferedImage to an OutputStream using the specified image format.
static byte[]	writeImageToBytes(java.awt.image.BufferedImage src, ImageFormat format) Writes the content of a BufferedImage to a byte array using the specified image format.

Methods inherited from class java.lang.Object

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

Method Detail

hasImageFileExtension

public static boolean hasImageFileExtension(java.io.File file)

Attempts to determine if a file contains an image recorded in a supported graphics format based on its file-name extension (for example ".jpg", ".gif", ".png", etc.).

Parameters:

file - A valid File object providing a reference to a file that may contain an image.

Returns:

true if the file-name includes a supported image format file extension; otherwise, false.

hasImageFileExtension

public static boolean hasImageFileExtension(java.lang.String fileName)

Attempts to determine if a file contains an image recorded in a supported graphics format based on its file-name extension (for example ".jpg", ".gif", ".png", etc.).

Parameters:

fileName - A valid string representing name of file which may contain an image.

Returns:

true if the file name has an image format file extension.

guessFormat

public static ImageFormat guessFormat(byte[] bytes)
                               throws java.io.IOException

Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.

Many graphics format specify identifying byte values that appear at the beginning of the data file. This method checks for such identifying elements and returns a ImageFormat enumeration indicating what it detects. Note that this method can return "false positives" in cases where non-image files begin with the specified byte values.

Parameters:

bytes - Byte array containing an image file.

Returns:

An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be determined.

Throws:

java.io.IOException - in the event of an unrecoverable I/O condition.

guessFormat

public static ImageFormat guessFormat(java.io.File file)
                               throws java.io.IOException

Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.

Many graphics formats specify identifying byte values that appear at the beginning of the data file. This method checks for such identifying elements and returns a ImageFormat enumeration indicating what it detects. Note that this method can return "false positives" in cases where non-image files begin with the specified byte values.

Parameters:

file - File containing image data.

Returns:

An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be determined.

Throws:

java.io.IOException - in the event of an unrecoverable I/O condition.

guessFormat

public static ImageFormat guessFormat(ByteSource byteSource)
                               throws java.io.IOException

Attempts to determine the image format of a file based on its "magic numbers," the first bytes of the data.

Many graphics formats specify identifying byte values that appear at the beginning of the data file. This method checks for such identifying elements and returns a ImageFormat enumeration indicating what it detects. Note that this method can return "false positives" in cases where non-image files begin with the specified byte values.

Parameters:

byteSource - a valid ByteSource object potentially supplying data for an image.

Returns:

An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be determined.

Throws:

java.lang.IllegalArgumentException - in the event of an unsuccessful attempt to read the image data

java.io.IOException - in the event of an unrecoverable I/O condition.

getICCProfile

public static java.awt.color.ICC_Profile getICCProfile(byte[] bytes)
                                                throws ImageReadException,
                                                       java.io.IOException

Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.

Parameters:

bytes - Byte array containing an image file.

Returns:

An instance of ICC_Profile or null if the image contains no ICC profile.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getICCProfile

public static java.awt.color.ICC_Profile getICCProfile(java.io.InputStream is,
                                                       java.lang.String fileName)
                                                throws ImageReadException,
                                                       java.io.IOException

Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.

Parameters:

is - InputStream from which to read image data.

fileName - Filename associated with image data (optional).

Returns:

An instance of ICC_Profile or null if the image contains no ICC profile.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getICCProfile

public static java.awt.color.ICC_Profile getICCProfile(java.io.File file)
                                                throws ImageReadException,
                                                       java.io.IOException

Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.

Parameters:

file - File containing image data.

Returns:

An instance of ICC_Profile or null if the image contains no ICC profile.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getICCProfileBytes

public static byte[] getICCProfileBytes(byte[] bytes)
                                 throws ImageReadException,
                                        java.io.IOException

Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.

To parse the result use IccProfileParser or ICC_Profile.getInstance(bytes).

Parameters:

bytes - Byte array containing an image file.

Returns:

A byte array.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

IccProfileParser, ICC_Profile

getICCProfileBytes

public static byte[] getICCProfileBytes(java.io.File file)
                                 throws ImageReadException,
                                        java.io.IOException

Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and TIFF images.

To parse the result use IccProfileParser or ICC_Profile.getInstance(bytes).

Parameters:

file - File containing image data.

Returns:

A byte array.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

IccProfileParser, ICC_Profile

getImageInfo

public static ImageInfo getImageInfo(java.lang.String fileName,
                                     byte[] bytes)
                              throws ImageReadException,
                                     java.io.IOException

Parses the "image info" of an image.

"Image info" is a summary of basic information about the image such as: width, height, file format, bit depth, color type, etc.

Not to be confused with "image metadata."

Parameters:

fileName - String.

bytes - Byte array containing an image file.

Returns:

An instance of ImageInfo.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

ImageInfo

getImageInfo

public static ImageInfo getImageInfo(java.io.InputStream is,
                                     java.lang.String fileName)
                              throws ImageReadException,
                                     java.io.IOException

Parses the "image info" of an image.

"Image info" is a summary of basic information about the image such as: width, height, file format, bit depth, color type, etc.

Not to be confused with "image metadata."

Parameters:

is - InputStream from which to read image data.

fileName - Filename associated with image data (optional).

Returns:

An instance of ImageInfo.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

ImageInfo

getImageInfo

public static ImageInfo getImageInfo(byte[] bytes)
                              throws ImageReadException,
                                     java.io.IOException

Parses the "image info" of an image.

"Image info" is a summary of basic information about the image such as: width, height, file format, bit depth, color type, etc.

Not to be confused with "image metadata."

Parameters:

bytes - Byte array containing an image file.

Returns:

An instance of ImageInfo.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

ImageInfo

getImageInfo

public static ImageInfo getImageInfo(java.io.File file)
                              throws ImageReadException,
                                     java.io.IOException

Parses the "image info" of an image file.

"Image info" is a summary of basic information about the image such as: width, height, file format, bit depth, color type, etc.

Not to be confused with "image metadata."

Parameters:

file - File containing image data.

Returns:

An instance of ImageInfo.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

See Also:

ImageInfo

getImageSize

public static java.awt.Dimension getImageSize(java.io.InputStream is,
                                              java.lang.String fileName)
                                       throws ImageReadException,
                                              java.io.IOException

Determines the width and height of an image.

Parameters:

is - InputStream from which to read image data.

fileName - Filename associated with image data (optional).

Returns:

The width and height of the image.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getImageSize

public static java.awt.Dimension getImageSize(byte[] bytes)
                                       throws ImageReadException,
                                              java.io.IOException

Determines the width and height of an image.

Parameters:

bytes - Byte array containing an image file.

Returns:

The width and height of the image.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getImageSize

public static java.awt.Dimension getImageSize(java.io.File file)
                                       throws ImageReadException,
                                              java.io.IOException

Determines the width and height of an image file.

Parameters:

file - File containing image data.

Returns:

The width and height of the image.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getImageSize

public static java.awt.Dimension getImageSize(ByteSource byteSource)
                                       throws ImageReadException,
                                              java.io.IOException

Determines the width and height of an image byte source.

Parameters:

byteSource - Byte source data.

Returns:

The width and height of the image.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getXmpXml

public static java.lang.String getXmpXml(java.io.InputStream is,
                                         java.lang.String fileName)
                                  throws ImageReadException,
                                         java.io.IOException

Extracts the embedded XML metadata as an XML string.

Parameters:

is - InputStream from which to read image data.

fileName - Filename associated with image data (optional).

Returns:

Xmp Xml as String, if present. Otherwise, returns null.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getXmpXml

public static java.lang.String getXmpXml(byte[] bytes)
                                  throws ImageReadException,
                                         java.io.IOException

Extracts the embedded XML metadata as an XML string.

Parameters:

bytes - Byte array containing an image file.

Returns:

Xmp Xml as String, if present. Otherwise, returns null.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getXmpXml

public static java.lang.String getXmpXml(java.io.File file)
                                  throws ImageReadException,
                                         java.io.IOException

Extracts the embedded XML metadata as an XML string.

Parameters:

file - File containing image data.

Returns:

Xmp Xml as String, if present. Otherwise, returns null.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getXmpXml

public static java.lang.String getXmpXml(ByteSource byteSource)
                                  throws ImageReadException,
                                         java.io.IOException

Extracts the embedded XML metadata as an XML string.

Parameters:

byteSource - File containing image data.

Returns:

Xmp Xml as String, if present. Otherwise, returns null.

Throws:

ImageReadException - if it fails to parse the image

java.io.IOException - if it fails to read the image data

getMetadata

public static org.apache.commons.imaging.common.ImageMetadata getMetadata(byte[] bytes)
                                                                   throws ImageReadException,
                                                                          java.io.IOException

Parses the metadata of an image. This metadata depends on the format of the image.

JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may contain comments. TIFF files may contain metadata.

The instance of IImageMetadata returned by getMetadata() should be upcast (depending on image format).

Not to be confused with "image info."

Parameters:

bytes - Byte array containing an image file.

Returns:

An instance of ImageMetadata.

Throws:

ImageReadException - if it fails to read the image metadata

java.io.IOException - if it fails to read the image data

See Also:

ImageMetadata

getMetadata

public static org.apache.commons.imaging.common.ImageMetadata getMetadata(java.io.InputStream is,
                                                                          java.lang.String fileName)
                                                                   throws ImageReadException,
                                                                          java.io.IOException

Parses the metadata of an image file. This metadata depends on the format of the image.

JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may contain comments. TIFF files may contain metadata.

The instance of IImageMetadata returned by getMetadata() should be upcast (depending on image format).

Not to be confused with "image info."

Parameters:

is - InputStream from which to read image data.

fileName - Filename associated with image data (optional).

Returns:

An instance of IImageMetadata.

Throws:

ImageReadException - if it fails to read the image metadata

java.io.IOException - if it fails to read the image data

See Also:

ImageMetadata

getMetadata

public static org.apache.commons.imaging.common.ImageMetadata getMetadata(java.io.File file)
                                                                   throws ImageReadException,
                                                                          java.io.IOException

Parses the metadata of an image file. This metadata depends on the format of the image.

JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may contain comments. TIFF files may contain metadata.

The instance of IImageMetadata returned by getMetadata() should be upcast (depending on image format).

Not to be confused with "image info."

Parameters:

file - File containing image data.

Returns:

An instance of IImageMetadata.

Throws:

ImageReadException - if it fails to read the image metadata

java.io.IOException - if it fails to read the image data

See Also:

ImageMetadata

dumpImageFile

public static java.lang.String dumpImageFile(byte[] bytes)
                                      throws ImageReadException,
                                             java.io.IOException

Write the ImageInfo and format-specific information for the image content of the specified byte array to a string.

Parameters:

bytes - A valid array of bytes.

Returns:

A valid string.

Throws:

ImageReadException - In the event that the specified content does not conform to the format of the specific parser implementation.

java.io.IOException - In the event of unsuccessful read or access operation.

dumpImageFile

public static java.lang.String dumpImageFile(java.io.File file)
                                      throws ImageReadException,
                                             java.io.IOException

Write the ImageInfo and format-specific information for the image content of the specified file to a string.

Parameters:

file - A valid file reference.

Returns:

A valid string.

Throws:

ImageReadException - In the event that the specified content does not conform to the format of the specific parser implementation.

java.io.IOException - In the event of unsuccessful read or access operation.

getFormatCompliance

public static FormatCompliance getFormatCompliance(byte[] bytes)
                                            throws ImageReadException,
                                                   java.io.IOException

Attempts to determine the image format of the specified data and evaluates its format compliance.

This method returns a FormatCompliance object which includes information about the data's compliance to a specific format.

Parameters:

bytes - a valid array of bytes containing image data.

Returns:

if successful, a valid FormatCompliance object.

Throws:

ImageReadException - in the event of unreadable data.

java.io.IOException - in the event of an unrecoverable I/O condition.

getFormatCompliance

public static FormatCompliance getFormatCompliance(java.io.File file)
                                            throws ImageReadException,
                                                   java.io.IOException

Attempts to determine the image format of the specified data and evaluates its format compliance. This method returns a FormatCompliance object which includes information about the data's compliance to a specific format.

Parameters:

file - valid file containing image data

Returns:

if successful, a valid FormatCompliance object.

Throws:

ImageReadException - in the event of unreadable data.

java.io.IOException - in the event of an unrecoverable I/O condition.

getAllBufferedImages

public static java.util.List<java.awt.image.BufferedImage> getAllBufferedImages(java.io.InputStream is,
                                                                                java.lang.String fileName)
                                                                         throws ImageReadException,
                                                                                java.io.IOException

Gets all images specified by the InputStream (some formats may include multiple images within a single data source).

Parameters:

is - A valid InputStream

fileName - Filename associated with image data (optional).

Returns:

A valid (potentially empty) list of BufferedImage objects.

Throws:

ImageReadException - In the event that the specified content does not conform to the format of the specific parser implementation.

java.io.IOException - In the event of unsuccessful read or access operation.

getAllBufferedImages

public static java.util.List<java.awt.image.BufferedImage> getAllBufferedImages(byte[] bytes)
                                                                         throws ImageReadException,
                                                                                java.io.IOException

Gets all images specified by the byte array (some formats may include multiple images within a single data source).

Parameters:

bytes - a valid array of bytes

Returns:

A valid (potentially empty) list of BufferedImage objects.

Throws:

ImageReadException - In the event that the specified content does not conform to the format of the specific parser implementation.

java.io.IOException - In the event of unsuccessful read or access operation.

getAllBufferedImages

public static java.util.List<java.awt.image.BufferedImage> getAllBufferedImages(java.io.File file)
                                                                         throws ImageReadException,
                                                                                java.io.IOException

Gets all images specified by the file (some formats may include multiple images within a single data source).

Parameters:

file - A reference to a valid data file.

Returns:

A valid (potentially empty) list of BufferedImage objects.

Throws:

ImageReadException - In the event that the specified content does not conform to the format of the specific parser implementation.

java.io.IOException - In the event of unsuccessful read or access operation.

getBufferedImage

public static java.awt.image.BufferedImage getBufferedImage(java.io.InputStream is)
                                                     throws ImageReadException,
                                                            java.io.IOException

Reads the first image from an InputStream.

For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

is - a valid ImageStream from which to read data.

Returns:

if successful, a valid buffered image

Throws:

ImageReadException - in the event of a processing errorfileName while reading an image (i.e. a format violation, etc.).

java.io.IOException - in the event of an unrecoverable I/O exception.

getBufferedImage

public static java.awt.image.BufferedImage getBufferedImage(java.io.InputStream is,
                                                            java.lang.String fileName)
                                                     throws ImageReadException,
                                                            java.io.IOException

Reads the first image from an InputStream.

For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

is - a valid ImageStream from which to read data.

fileName - the image file name.

Returns:

if successful, a valid buffered image

Throws:

ImageReadException - in the event of a processing error while reading an image (i.e. a format violation, etc.).

java.io.IOException - in the event of an unrecoverable I/O exception.

getBufferedImage

public static java.awt.image.BufferedImage getBufferedImage(byte[] bytes)
                                                     throws ImageReadException,
                                                            java.io.IOException

Reads the first image from a byte array.

For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

bytes - a valid array of bytes from which to read data.

Returns:

if successful, a valid buffered image

Throws:

ImageReadException - in the event of a processing error while reading an image (i.e. a format violation, etc.).

java.io.IOException - in the event of an unrecoverable I/O exception.

getBufferedImage

public static java.awt.image.BufferedImage getBufferedImage(java.io.File file)
                                                     throws ImageReadException,
                                                            java.io.IOException

Reads the first image from a file.

For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

file - a valid reference to a file containing image data.

Returns:

if successful, a valid buffered image

Throws:

ImageReadException - in the event of a processing error while reading an image (i.e. a format violation, etc.).

java.io.IOException - in the event of an unrecoverable I/O exception.

writeImage

public static void writeImage(java.awt.image.BufferedImage src,
                              java.io.File file,
                              ImageFormat format)
                       throws ImageWriteException,
                              java.io.IOException

Writes the content of a BufferedImage to a file using the specified image format.

Image writing is not supported for all graphics formats. For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

src - a valid BufferedImage object

file - the file to which the output image is to be written

format - the format in which the output image is to be written

Throws:

ImageWriteException - in the event of a format violation, unsupported image format, etc.

java.io.IOException - in the event of an unrecoverable I/O exception.

See Also:

ImagingConstants

writeImageToBytes

public static byte[] writeImageToBytes(java.awt.image.BufferedImage src,
                                       ImageFormat format)
                                throws ImageWriteException,
                                       java.io.IOException

Writes the content of a BufferedImage to a byte array using the specified image format.

Image writing is not supported for all graphics formats. For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

src - a valid BufferedImage object

format - the format in which the output image is to be written

Returns:

if successful, a valid array of bytes.

Throws:

ImageWriteException - in the event of a format violation, unsupported image format, etc.

java.io.IOException - in the event of an unrecoverable I/O exception.

See Also:

ImagingConstants

writeImage

public static void writeImage(java.awt.image.BufferedImage src,
                              java.io.OutputStream os,
                              ImageFormat format)
                       throws ImageWriteException,
                              java.io.IOException

Writes the content of a BufferedImage to an OutputStream using the specified image format.

Image writing is not supported for all graphics formats. For the most recent information on support for specific formats, refer to Format Support at the main project development web site. While the Apache Commons Imaging package does not fully support all formats, it can read image info, metadata and ICC profiles from all image formats that provide this data.

Parameters:

src - a valid BufferedImage object

os - the OutputStream to which the output image is to be written

format - the format in which the output image is to be written

Throws:

ImageWriteException - in the event of a format violation, unsupported image format, etc.

java.io.IOException - in the event of an unrecoverable I/O exception.

See Also:

ImagingConstants