aspose.pdf.utils

Class RasterConverter

java.lang.Object

aspose.pdf.utils.RasterConverter

public final class RasterConverter
extends Object

Util class for transforming unpacked raster data. Notions: Raw raster data - raster data with one byte for one pixel distribution. if byte equals 0 - color is white, otherwise is black. Unpacked raster data - raster data with one bit of byte for one pixel in a raster image. if bit equals 0 - color is white, otherwise is black.

Constructor Summary

Constructors

Constructor and Description
RasterConverter()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	convertBetwenBits(byte[] data, int width, int height, int fromBitsPerPixel, int toBitsPerPixel) Converts Unpacked raster data with one BitsPerPixel format to another BitsPerPixelFormat.

Methods inherited from class java.lang.Object

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

Constructor Detail

RasterConverter

public RasterConverter()

Method Detail

convertBetwenBits

public static byte[] convertBetwenBits(byte[] data,
                       int width,
                       int height,
                       int fromBitsPerPixel,
                       int toBitsPerPixel)

Converts Unpacked raster data with one BitsPerPixel format to another BitsPerPixelFormat.

Parameters:

data - Unpacked raster data

width - width of raster image.

height - height of raster image.

fromBitsPerPixel - BitsPerPixel format of input raster. Must be between 1 and 8 conclusively.

toBitsPerPixel - BitsPerPixel format for output raster. Must be between 1 and 8 conclusively.

Returns:

raw raster data: an array of bytes with one byte for one pixel in a raster image. if byte equals 0 - color is white, otherwise is black.