The following code snippet shows how to calculate image dimension in java by reading the file from specified path.

public static Dimension getImageDimension(final File path) {
    if (path == null) return null;

    Dimension result = null;
    String suffix = getFileExtension(path.toString());
    if (suffix.startsWith(".")) {
        suffix = suffix.substring(1);
    }

    final Iterator<ImageReader> iterator = ImageIO.getImageReadersBySuffix(suffix);
    if (iterator.hasNext()) {
        final ImageReader reader = iterator.next();
        try {
            final ImageInputStream stream = new FileImageInputStream(path);
            reader.setInput(stream);
            int width = reader.getWidth(reader.getMinIndex());
            int height = reader.getHeight(reader.getMinIndex());
            result = new Dimension(width, height);
        } catch (IOException e) {
        } finally {
            reader.dispose();
        }
    } else {
        logger.error("No reader found for given format: " + suffix);
    }
    return result;
}
Tagged in : Java

Nilanchala

A blogger, a bit of tech freak and a software developer. He is a thought leader in the fusion of design and mobile technologies. He is the author of Xamarin Mobile Application Development for Android Book (goo.gl/qUZ0XV3), DZone MVB and founder of stacktips.com.

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