edu.harvard.hul.ois.jhove.module.tiff.TiffProfileClassITHCP2 Maven / Gradle / Ivy

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The JHOVE HUL validation modules.

There is a newer version: 1.20.1

/**********************************************************************
 * Jhove - JSTOR/Harvard Object Validation Environment
 * Copyright 2003 by JSTOR and the President and Fellows of Harvard College
 **********************************************************************/

package edu.harvard.hul.ois.jhove.module.tiff;

import edu.harvard.hul.ois.jhove.*;

/**
 *  Profile checker for TIFF Class IT-HC/P2.
 *
 *  The TIFF/IT spec states that "TIFF/IT-HC/P2 is an extension of
 *  TIFF/IT-HC/P1."
 *
 *  @author Gary McGath
 */
public final class TiffProfileClassITHCP2 extends TiffProfileClassIT
{
    public TiffProfileClassITHCP2 ()
    {
        super ();
        _profileText =  "TIFF/IT-HC/P2 (ISO 12639:2003)";
    }

    /**
     *  Returns true if the IFD satisfies the requirements
     *  of the profile.  See the documentation for
     *  details.
     */
    public boolean satisfiesThisProfile (IFD ifd) 
    {
        if (!super.satisfiesThisProfile (ifd)) {
            return false;
        }

        if (!(ifd instanceof TiffIFD)) {
            return false;
        }
        TiffIFD tifd = (TiffIFD) ifd;

        /* Check required tags. */

        // BitsPerSample must be {8, ...}
        NisoImageMetadata niso = tifd.getNisoImageMetadata ();
        int[] bps = niso.getBitsPerSample ();
        if (bps == null || bps[0] != 8) {
            return false;
        }

        if (!satisfiesPhotometricInterpretation (tifd, 5)) {
            return false;
        }

        if (!satisfiesCompression (tifd, 32895)) {
            return false;
        }

        if (!satisfiesPlanarConfiguration (tifd, 1)) {
            return false;
        }
        
        if (!satisfiesResolutionUnit (tifd, new int [] {2, 3} )) {
            return false;
        }

        int inkSet = tifd.getInkSet ();
        if (inkSet != 1) {
            return false;
        }

        if (tifd.getNumberOfInks () != 4) {
            return false;
        }
        
        // DotRange={0,255}
        if (!satisfiesDotRange (tifd, 0, 255)) {
            return false;
        }

        int trans = tifd.getTransparencyIndicator ();
        if (trans != 0 && trans != 1) {
            return false;
        }

        // The tags DocumentName, Model, PageName, HostComputer, 
        // Site, and ColorSequence must NOT be defined
        
        if (tifd.getDocumentName () != null ||
            niso.getScannerModelName () != null ||
            tifd.getPageName () != null ||
            niso.getHostComputer () != null ||
            tifd.getSite () != null) {
            return false;
        }

        return true;
    }
}