Change background in APNG via Java
Build your own Java apps to Change background in APNG files using server-side APIs.
How to change background in APNG Files Using Java
Frequently, achieving the ideal image requires changing the background. To attain the desired APNG format image effect, foreground objects must be isolated from the rest of the picture. Automatic object detection is possible if the background is uniform. If the photo’s background is uneven or object separation is challenging, pre-marking the image is recommended. This involves identifying rectangular regions within the photo where intended objects reside and specifying their types. This can be done manually or automatically through the Cloud API’s object recognition feature. Following object selection and original background removal, a new background can be applied or transparency can be implemented. In order to change background in APNG files, we’ll use Aspose.Imaging for Java API which is a feature-rich, powerful and easy to use image manipulation and conversion API for Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.
Repository
<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>
Dependency
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-imaging</artifactId>
<version>version of aspose-imaging API</version>
<classifier>jdk16</classifier>
</dependency>
Steps to Change background in APNG via Java
You need the aspose-imaging-version-jdk16.jar to try the following workflow in your own environment.
- Load APNG files with Image.load method
- Change background;
- Save image to disc in the supported by Aspose.Imaging format
System Requirements
Aspose.Imaging for Java is supported on all major operating systems. Just make sure that you have the following prerequisites.
- JDK 1.6 or higher is installed.
Change background in APNG images - Java
import com.aspose.imaging.*; | |
import com.aspose.imaging.fileformats.png.PngColorType; | |
import com.aspose.imaging.imageoptions.PngOptions; | |
import com.aspose.imaging.masking.IMaskingSession; | |
import com.aspose.imaging.masking.ImageMasking; | |
import com.aspose.imaging.masking.options.*; | |
import com.aspose.imaging.masking.result.MaskingResult; | |
import com.aspose.imaging.sources.FileCreateSource; | |
import java.io.File; | |
import java.util.Arrays; | |
import java.util.LinkedList; | |
import java.util.List; | |
import java.util.function.Consumer; | |
//Most common example to demonstrate background change/remove tool | |
removeBackgroundGenericExample(); | |
// Folder that contains images to process | |
static final String templatesFolder = "c:\\Data\\"; | |
public static void removeBackgroundProcessingWithManualRectangles() | |
{ | |
List<String> rasterFormats = Arrays.asList("jpg", "png", "bmp", "apng", | |
"dicom", "jp2", "j2k", "tga", "webp", "tif", "gif"); | |
List<String> vectorFormats = Arrays.asList("svg", "otg", "odg", "eps", | |
"wmf", "emf", "wmz", "emz", "cmx", "cdr"); | |
List<String> allFormats = new LinkedList<>(rasterFormats); | |
allFormats.addAll(vectorFormats); | |
allFormats.forEach(new Consumer<String>() | |
{ | |
@Override | |
public void accept(String formatExt) | |
{ | |
String inputFile = templatesFolder + "couple." + formatExt; | |
boolean isVectorFormat = vectorFormats.contains(formatExt); | |
//Need to rasterize vector formats before background remove | |
if (isVectorFormat) | |
{ | |
inputFile = rasterizeVectorImage(formatExt, inputFile); | |
} | |
String outputFile = templatesFolder + "remove_background_manual_rectangles." + formatExt; | |
System.out.println("Processing " + formatExt); | |
try (RasterImage image = (RasterImage) Image.load(inputFile)) | |
{ | |
//Additional code examples can be found at | |
//https://docs.aspose.com/imaging/java/remove-background-from-images/#graph-cut-auto-masking-using-imagingcloud-api | |
AutoMaskingGraphCutOptions maskingOptions = new AutoMaskingGraphCutOptions(); | |
maskingOptions.setFeatheringRadius(2); | |
maskingOptions.setMethod(SegmentationMethod.GraphCut); | |
AutoMaskingArgs maskingArgs = new AutoMaskingArgs(); | |
maskingArgs.setObjectsRectangles(new Rectangle[] | |
{ | |
// girl's bound box | |
new Rectangle(87, 47, 123, 308), | |
// boy's bound box | |
new Rectangle(180, 24, 126, 224) | |
}); | |
maskingOptions.setArgs(maskingArgs); | |
PngOptions pngOptions = new PngOptions(); | |
pngOptions.setColorType(PngColorType.TruecolorWithAlpha); | |
pngOptions.setSource(new FileCreateSource(outputFile, false)); | |
maskingOptions.setExportOptions(pngOptions); | |
IMaskingSession maskingSession = new ImageMasking(image) | |
.createSession(maskingOptions); | |
try | |
{ | |
// first run of segmentation | |
maskingSession.decompose().dispose(); | |
AutoMaskingArgs argsWithUserMarkers = new AutoMaskingArgs(); | |
argsWithUserMarkers.setObjectsPoints(new Point[][] | |
{ | |
// background markers | |
null, | |
// foreground markers | |
new UserMarker() | |
// boy's head | |
.addPoint(218, 48, 10) | |
// girl's head | |
.addPoint(399, 66, 10) | |
// girs's body | |
.addPoint(158, 141, 10) | |
.addPoint(158, 209, 20) | |
.addPoint(115, 225, 5) | |
.getPoints() | |
}); | |
try (MaskingResult maskingResult = maskingSession | |
.improveDecomposition(argsWithUserMarkers)) | |
{ | |
try (Image resultImage = maskingResult.get_Item(1).getImage()) | |
{ | |
resultImage.save(); | |
} | |
} | |
} | |
finally | |
{ | |
maskingSession.dispose(); | |
} | |
} | |
//Remove rasterized vector image | |
if (isVectorFormat) | |
{ | |
new File(inputFile).delete(); | |
} | |
} | |
}); | |
} | |
public static void removeBackgroundAutoProcessingWithAssumedObjects() | |
{ | |
List<String> rasterFormats = Arrays.asList("jpg", "png", "bmp", "apng", | |
"dicom", "jp2", "j2k", "tga", "webp", "tif", "gif"); | |
List<String> vectorFormats = Arrays.asList("svg", "otg", "odg", "eps", | |
"wmf", "emf", "wmz", "emz", "cmx", "cdr"); | |
List<String> allFormats = new LinkedList<>(rasterFormats); | |
allFormats.addAll(vectorFormats); | |
allFormats.forEach(new Consumer<String>() { | |
@Override | |
public void accept(String formatExt) | |
{ | |
String inputFile = templatesFolder + "couple." + formatExt; | |
boolean isVectorFormat = vectorFormats.contains(formatExt); | |
//Need to rasterize vector formats before background remove | |
if (isVectorFormat) | |
{ | |
inputFile = rasterizeVectorImage(formatExt, inputFile); | |
} | |
String outputFile = templatesFolder | |
+ "remove_background_auto_assumed_objects." + formatExt; | |
System.out.println("Processing " + formatExt); | |
try (RasterImage image = (RasterImage) Image.load(inputFile)) | |
{ | |
//Additional code examples can be found at | |
//https://docs.aspose.com/imaging/java/remove-background-from-images/#graph-cut-auto-masking-using-imagingcloud-api | |
AutoMaskingGraphCutOptions maskingOptions = new AutoMaskingGraphCutOptions(); | |
final LinkedList<AssumedObjectData> assumedObjects = new LinkedList<>(); | |
// girl's bound box | |
assumedObjects.add( | |
new AssumedObjectData(DetectedObjectType.Human, | |
new Rectangle(87, 47, 123, 308))); | |
// boy's bound box | |
assumedObjects.add( | |
new AssumedObjectData(DetectedObjectType.Human, | |
new Rectangle(180, 24, 126, 224))); | |
maskingOptions.setAssumedObjects(assumedObjects); | |
maskingOptions.setCalculateDefaultStrokes(true); | |
maskingOptions.setFeatheringRadius(1); | |
maskingOptions.setMethod(SegmentationMethod.GraphCut); | |
PngOptions pngOptions = new PngOptions(); | |
pngOptions.setColorType(PngColorType.TruecolorWithAlpha); | |
pngOptions.setSource(new FileCreateSource(outputFile, false)); | |
maskingOptions.setExportOptions(pngOptions); | |
maskingOptions.setBackgroundReplacementColor(Color.getGreen()); | |
try (MaskingResult maskingResult = new ImageMasking(image) | |
.decompose(maskingOptions)) | |
{ | |
try (Image resultImage = maskingResult.get_Item(1).getImage()) | |
{ | |
resultImage.save(); | |
} | |
} | |
} | |
//Remove rasterized vector image | |
if (isVectorFormat) | |
{ | |
new File(inputFile).delete(); | |
} | |
} | |
}); | |
} | |
public static void removeBackgroundAutoProcessing() | |
{ | |
List<String> rasterFormats = Arrays.asList("jpg", "png", "bmp", "apng", | |
"dicom", "jp2", "j2k", "tga", "webp", "tif", "gif"); | |
List<String> vectorFormats = Arrays.asList("svg", "otg", "odg", "eps", | |
"wmf", "emf", "wmz", "emz", "cmx", "cdr"); | |
List<String> allFormats = new LinkedList<>(rasterFormats); | |
allFormats.addAll(vectorFormats); | |
allFormats.forEach(new Consumer<String>() { | |
@Override | |
public void accept(String formatExt) | |
{ | |
String inputFile = templatesFolder + "couple." + formatExt; | |
boolean isVectorFormat = vectorFormats.contains(formatExt); | |
//Need to rasterize vector formats before background remove | |
if (isVectorFormat) | |
{ | |
inputFile = rasterizeVectorImage(formatExt, inputFile); | |
} | |
String outputFile = templatesFolder + "remove_background_auto." + formatExt; | |
System.out.println("Processing " + formatExt); | |
try (RasterImage image = (RasterImage) Image.load(inputFile)) | |
{ | |
//Additional code examples can be found at | |
//https://docs.aspose.com/imaging/java/remove-background-from-images/#graph-cut-auto-masking-using-imagingcloud-api | |
AutoMaskingGraphCutOptions maskingOptions = new AutoMaskingGraphCutOptions(); | |
maskingOptions.setFeatheringRadius(1); | |
maskingOptions.setMethod(SegmentationMethod.GraphCut); | |
PngOptions pngOptions = new PngOptions(); | |
pngOptions.setColorType(PngColorType.TruecolorWithAlpha); | |
pngOptions.setSource(new FileCreateSource(outputFile, false)); | |
maskingOptions.setExportOptions(pngOptions); | |
maskingOptions.setBackgroundReplacementColor(Color.getGreen()); | |
try (MaskingResult maskingResult = new ImageMasking(image) | |
.decompose(maskingOptions)) | |
{ | |
try (Image resultImage = maskingResult.get_Item(1).getImage()) | |
{ | |
resultImage.save(); | |
} | |
} | |
} | |
//Remove rasterized vector image | |
if (isVectorFormat) | |
{ | |
new File(inputFile).delete(); | |
} | |
} | |
}); | |
} | |
public static void removeBackgroundGenericExample() | |
{ | |
List<String> rasterFormats = Arrays.asList("jpg", "png", "bmp", "apng", | |
"dicom", "jp2", "j2k", "tga", "webp", "tif", "gif"); | |
List<String> vectorFormats = Arrays.asList("svg", "otg", "odg", "eps", | |
"wmf", "emf", "wmz", "emz", "cmx", "cdr"); | |
List<String> allFormats = new LinkedList<>(rasterFormats); | |
allFormats.addAll(vectorFormats); | |
allFormats.forEach(new Consumer<String>() { | |
@Override | |
public void accept(String formatExt) | |
{ | |
String inputFile = templatesFolder + "couple." + formatExt; | |
boolean isVectorFormat = vectorFormats.contains(formatExt); | |
//Need to rasterize vector formats before background remove | |
if (isVectorFormat) | |
{ | |
inputFile = rasterizeVectorImage(formatExt, inputFile); | |
} | |
String outputFile = templatesFolder + "remove_background." + formatExt; | |
System.out.println("Processing " + formatExt); | |
try (RasterImage image = (RasterImage) Image.load(inputFile)) | |
{ | |
//Additional code examples can be found at | |
//https://docs.aspose.com/imaging/java/remove-background-from-images/#graph-cut-auto-masking-using-imagingcloud-api | |
AutoMaskingGraphCutOptions maskingOptions = new AutoMaskingGraphCutOptions(); | |
maskingOptions.setCalculateDefaultStrokes(true); | |
maskingOptions.setFeatheringRadius(1); | |
maskingOptions.setMethod(SegmentationMethod.GraphCut); | |
PngOptions pngOptions = new PngOptions(); | |
pngOptions.setColorType(PngColorType.TruecolorWithAlpha); | |
pngOptions.setSource(new FileCreateSource(outputFile, false)); | |
maskingOptions.setExportOptions(pngOptions); | |
maskingOptions.setBackgroundReplacementColor(Color.getGreen()); | |
try (MaskingResult maskingResult = new ImageMasking(image) | |
.decompose(maskingOptions)) | |
{ | |
try (Image resultImage = maskingResult.get_Item(1).getImage()) | |
{ | |
resultImage.save(); | |
} | |
} | |
} | |
//Remove rasterized vector image | |
if (isVectorFormat) | |
{ | |
new File(inputFile).delete(); | |
} | |
} | |
}); | |
} | |
private static String rasterizeVectorImage(String formatExt, String inputFile) | |
{ | |
String outputFile = templatesFolder + "rasterized."+ formatExt + ".png"; | |
try (Image image = Image.load(inputFile)) | |
{ | |
image.save(outputFile, new PngOptions()); | |
} | |
return outputFile; | |
} | |
class UserMarker | |
{ | |
private final List<Point> list = new LinkedList<>(); | |
public UserMarker addPoint(int left, int top, int radius) | |
{ | |
for (int y = top - radius; y <= top + radius; y++) | |
{ | |
for (int x = left - radius; x <= left + radius; x++) | |
{ | |
this.list.add(new Point(x, y)); | |
} | |
} | |
return this; | |
} | |
public Point[] getPoints() | |
{ | |
return this.list.toArray(new Point[0]); | |
} | |
} |
About Aspose.Imaging for Java API
Aspose.Imaging API is an image processing solution to create, modify, draw or convert images (photos) within applications. It offers: cross-platform Image processing, including but not limited to conversions between various image formats (including uniform multi-page or multi-frame image processing), modifications such as drawing, working with graphic primitives, transformations (resize, crop, flip&rotate, binarization, grayscale, adjust), advanced image manipulation features (filtering, dithering, masking, deskewing), and memory optimization strategies. It’s a standalone library and does not depend on any software for image operations. One can easily add high-performance image conversion features with native APIs within projects. These are 100% private on-premise APIs and images are processed at your servers.Change background in APNG via Online App
Change background in APNG documents by visiting our Live Demos website . The live demo has the following benefits
APNG What is APNG File Format
A file with .apng (Animated Portable Network Graphics) extension is a raster graphic format and is an unofficial extension to the Portable Network Graphic (PNG ). It comprises of multiple frames (each of PNG image) that represents an animation sequence. This gives similar visualization as a GIF file. APNG files support 24-bit images and 8-bit transparency. APNG is backward compatible with non-animated GIF files. APNG files use the same .png extension and can be opened by applications such as Mozilla Firefox, Chrome with APNG support, iMessage apps for iOS 10.
Read MoreOther Supported Change background Formats
Using Java, one can easily change background in different formats including.