How to remove background from an image

How to remove background from an image

         To remove photo background, you can use the AutoMaskingGraphCutOptions class with automatically calculated strokes and set property by using setFeatheringRadius method to smooth and blur the cutting edge. The feathering radius is calculated as 1/500 of the image dimension. You need to set a new color, when you've removed the background, in the Java code example below we use transparent pixels. So, the same procedure can be used for photo background changing.

MaskingResult[] results;
try (RasterImage image = (RasterImage)Image.load("input.jpg"))
{
	// To use Graph Cut with auto calculated strokes, AutoMaskingGraphCutOptions is used.
	AutoMaskingGraphCutOptions options = new AutoMaskingGraphCutOptions();
	// Indicating that a new calculation of the default strokes should be performed during the image decomposition.
	options.setCalculateDefaultStrokes(true);
	// Setting post-process feathering radius based on the image size.
	options.setFeatheringRadius((Math.max(image.getWidth(), image.getHeight()) / 500) + 1);
	options.setMethod(SegmentationMethod.GraphCut);
	options.setDecompose(false);
	options.setBackgroundReplacementColor(Color.getTransparent());
	final PngOptions exportOptions = new PngOptions();
	exportOptions.setColorType(PngColorType.TruecolorWithAlpha);
	exportOptions.setSource(new FileCreateSource("tempFile"));
	options.setExportOptions(exportOptions);
	results = new ImageMasking(image).decompose(options);
}

try (RasterImage resultImage = (RasterImage)results[1].getImage())
{
	final PngOptions exportOptions = new PngOptions();
	exportOptions.setColorType(PngColorType.TruecolorWithAlpha);
	resultImage.save("output.png", exportOptions);
}

// Release resources
for (MaskingResult result : results)
{
	result.close();
}

         For a more detailed description with Java code examples please follow the link to Aspose Developer's guide.