Package org.aesh.terminal.image

Class ImageUtils

java.lang.Object

org.aesh.terminal.image.ImageUtils

public final class ImageUtils
extends Object

Utility class for image format detection and conversion.

Method Summary

Modifier and Type	Method	Description
static String	getFormat(byte[] data)	Get the image format name based on magic bytes.
static boolean	isGif(byte[] data)	Check if the image data is in GIF format.
static boolean	isJpeg(byte[] data)	Check if the image data is in JPEG format.
static boolean	isPng(byte[] data)	Check if the image data is in PNG format.
static byte[]	toPng(byte[] data)	Convert image data to PNG format.

Methods inherited from class java.lang.Object

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

Method Details

isPng

public static boolean isPng(byte[] data)

Check if the image data is in PNG format.

Parameters:

data - the image data

Returns:

true if the data starts with PNG signature

isJpeg

public static boolean isJpeg(byte[] data)

Check if the image data is in JPEG format.

Parameters:

data - the image data

Returns:

true if the data starts with JPEG signature

isGif

public static boolean isGif(byte[] data)

Check if the image data is in GIF format.

Parameters:

data - the image data

Returns:

true if the data starts with GIF signature

toPng

public static byte[] toPng(byte[] data)
                    throws IOException

Convert image data to PNG format. If the data is already PNG, it is returned as-is. Otherwise, the image is decoded and re-encoded as PNG.

Parameters:

data - the image data (JPEG, PNG, GIF, BMP, etc.)

Returns:

PNG encoded image data

Throws:

IOException - if the image cannot be read or converted

getFormat

public static String getFormat(byte[] data)

Get the image format name based on magic bytes.

Parameters:

data - the image data

Returns:

format name ("PNG", "JPEG", "GIF", or "UNKNOWN")