/*
* Copyright (c) 2008 Los Alamos National Security, LLC.
*
* Los Alamos National Laboratory Research Library Digital Library Research &
* Prototyping Team
*
* 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package gov.lanl.adore.djatoka.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ij.ImagePlus;
import ij.io.Opener;
import ij.process.ImageProcessor;
/**
* Image Information Utility used to obtain width and height information. This util is useful when processing images
* using external compression applications, such as Kakadu JPEG 2000 kdu_compress.
*
* @author Ryan Chute
* @author Kevin S. Clarke <a href="mailto:ksclarke@gmail.com">ksclarke@gmail.com</a>
*/
public class ImageRecordUtils {
private static final Logger LOGGER = LoggerFactory.getLogger(ImageRecordUtils.class);
/**
* Return an ImageRecord containing the images pixel dimensions.
*
* @param file absolute file path to image
* @return ImageRecord containing the images pixel dimensions
*/
public static ImageRecord getImageDimensions(final String file) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Getting image dimensions from: {}", file);
}
final ImageRecord dim = new ImageRecord(file);
final Opener o = new Opener();
final ImagePlus imp = o.openImage(file);
if (imp == null) {
return null;
}
ImageProcessor ip = imp.getProcessor();
final int width = ip.getWidth();
final int height = ip.getHeight();
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("{} (width: {} | height: {})", file, Integer.toString(width), Integer.toString(height));
}
dim.setWidth(width);
dim.setHeight(height);
ip = null;
return dim;
}
}