How To Get Supported Image Formats Using Java

This example is for how to list read/write image formats in the Java applications. If you are working with the image processing applications, it is necessary to know the supported formats to inform the user. Lets look at the example on how to list read/write image formats. SupportedImageFormatsExample.java

[code lang=”java”]
package javabeat.net.core;

import java.util.HashSet;
import java.util.Set;

import javax.imageio.ImageIO;

/**
* Supported Types Example
*
* @author Krishna
*
*/
public class SupportedImageFormatsExample {
public static void main(String[] args) {
Set setOfSupportedTypes = new HashSet();

//Get list of all registered readers
String[] formatNamesArray = ImageIO.getReaderFormatNames();

for (int i = 0; i < formatNamesArray.length; i++) {
setOfSupportedTypes.add(formatNamesArray[i].toLowerCase());
}

System.out.println("Read Formats Supported : " + setOfSupportedTypes);
setOfSupportedTypes.clear();

//Get list of all registered writers
formatNamesArray = ImageIO.getWriterFormatNames();

for (int i = 0; i < formatNamesArray.length; i++) {
setOfSupportedTypes.add(formatNamesArray[i].toLowerCase());
}
System.out.println("Write Formats Supported : " + setOfSupportedTypes);
setOfSupportedTypes.clear();

//Get list of all MIME types registered readers
formatNamesArray = ImageIO.getReaderMIMETypes();

for (int i = 0; i < formatNamesArray.length; i++) {
setOfSupportedTypes.add(formatNamesArray[i].toLowerCase());
}
System.out.println("Supported read MIME types: " + setOfSupportedTypes);
setOfSupportedTypes.clear();

//Get list of all MIME types registered writers
formatNamesArray = ImageIO.getWriterMIMETypes();

for (int i = 0; i < formatNamesArray.length; i++) {
setOfSupportedTypes.add(formatNamesArray[i].toLowerCase());
}
System.out.println("Supported write MIME types: " + setOfSupportedTypes);
}
}

[/code]

Output…

[code]
Read Formats Supported : [jpg, bmp, jpeg, wbmp, png, gif]
Write Formats Supported : [bmp, jpg, wbmp, jpeg, png, gif]
Supported read MIME types: [image/jpeg, image/png, image/x-png, image/vnd.wap.wbmp, image/bmp, image/gif]
Supported write MIME types: [image/png, image/jpeg, image/x-png, image/vnd.wap.wbmp, image/bmp, image/gif]
[/code]