org.jpedal.parser.image.OneBitImage Maven / Gradle / Ivy
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2017 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* OneBitImage.java
* ---------------
*/
package org.jpedal.parser.image;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.Raster;
import org.jpedal.io.ColorSpaceConvertor;
import org.jpedal.utils.LogWriter;
/**
* @author markee
*/
class OneBitImage {
static BufferedImage make(final int d, final int w, final int h, byte[] data) throws RuntimeException {
LogWriter.writeLog("comp=1 and d= " + d);
final BufferedImage image;
data = ColorSpaceConvertor.normaliseTo8Bit(d, w, h, data);
// create an image from the raw data
final DataBuffer db = new DataBufferByte(data, data.length);
final int[] bands = {0};
image = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_GRAY);
final Raster raster = Raster.createInterleavedRaster(db, w, h, w, 1, bands, null);
image.setData(raster);
return image;
}
}