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A library to read and give access to Tiff files.
/**
* BaselineProfile.java
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version; or, at your choice, under the terms of the
* Mozilla Public License, v. 2.0. SPDX GPL-3.0+ or MPL-2.0+.
*
*
* This program 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
* General Public License and the Mozilla Public License for more details.
*
*
* You should have received a copy of the GNU General Public License and the Mozilla Public License
* along with this program. If not, see http://www.gnu.org/licenses/ and at http://mozilla.org/MPL/2.0 .
*
*
* NB: for the © statement, include Easy Innova SL or other company/Person contributing the code.
*
*
* © 2015 Easy Innova, SL
*
*
* @author Víctor Muñoz Solà
* @version 1.0
* @since 4/6/2015
*
*/
package com.easyinnova.tiff.profiles;
import com.easyinnova.tiff.model.IfdTags;
import com.easyinnova.tiff.model.ReadTagsIOException;
import com.easyinnova.tiff.model.Tag;
import com.easyinnova.tiff.model.TagValue;
import com.easyinnova.tiff.model.TiffDocument;
import com.easyinnova.tiff.model.TiffObject;
import com.easyinnova.tiff.model.TiffTags;
import com.easyinnova.tiff.model.types.IFD;
import com.easyinnova.tiff.model.types.Rational;
import com.easyinnova.tiff.model.types.abstractTiffType;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
/**
* Checks if the Tiff file complies with the Baseline 6.0.
*/
public class BaselineProfile extends GenericProfile implements Profile {
/**
* Known types of images.
*/
public enum ImageType {
/** Bilevel (black and white). */
BILEVEL,
/** Crayscale. */
GRAYSCALE,
/** Palette-color. */
PALETTE,
/** The transparency mask. */
TRANSPARENCY_MASK,
/** RGB. */
RGB,
/** CMYK. */
CMYK,
/** YCbCr. */
YCbCr,
/** CIELab. */
CIELab,
/** Undefined. */
UNDEFINED
};
/** The image type. */
private ImageType type;
/** The photometric interpretation. */
private int photometric;
/** Is image stored in strips. */
private boolean strips = false;
/** Is image stored in tiles. */
private boolean tiles = false;
/**
* The tag order tolerance.
* 0: No tolerance. 1: Full tolerance (no matter if tags are not in ascending order)
* */
private int tagOrderTolerance = 1;
/**
* The rows per strip tolerance.
* 0: No tolerance. 1: Full tolerance.
* */
private int rowsPerStripTolerance = 1;
/**
* Instantiates a new baseline profile.
*
* @param doc the tiff file
*/
public BaselineProfile(TiffDocument doc) {
super(doc);
type = ImageType.UNDEFINED;
}
/**
* Validates the IFD.
*/
@Override
public void validate() {
int n = 0;
for (TiffObject o : model.getImageIfds()) {
IFD ifd = (IFD) o;
IfdTags metadata = ifd.getMetadata();
validateMetadata(metadata);
checkImage(ifd, n, metadata);
n++;
}
}
/**
* Creates the report.
*
* @return the XML report document
* @throws ParserConfigurationException Configuration parsing exception
*/
public Document createSchematronReport() throws ParserConfigurationException {
int n = 0;
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("report");
doc.appendChild(rootElement);
// IFDs
Element ifds = doc.createElement("ifds");
TiffObject o = model.getFirstIFD();
while (o != null) {
IFD ifd = (IFD) o;
Element ifdnode = doc.createElement("ifd");
ifdnode.setAttribute("n", n + "");
// Tags
IfdTags metadata = ifd.getMetadata();
Element tags = reportMetadata(metadata, doc);
ifdnode.appendChild(tags);
// Image
Element image = reportImage(ifd, n, metadata, doc);
ifdnode.appendChild(image);
n++;
ifds.appendChild(ifdnode);
o = ifd.getNextIFD();
}
rootElement.appendChild(ifds);
return doc;
}
/**
* Validates that the ifd entries have correct types and cardinalities, as they are defined in the
* JSONs tag configuration files.
*
* @param metadata the ifd metadata
*/
public void validateMetadata(IfdTags metadata) {
int prevTagId = 0;
try {
TiffTags.getTiffTags();
} catch (ReadTagsIOException e) {
}
for (TagValue ie : metadata.getTags()) {
if (!TiffTags.tagMap.containsKey(ie.getId())) {
validation.addWarning("Ignoring undefined tag id " + ie.getId(), "", "Metadata");
} else if (!TiffTags.tagTypes.containsKey(ie.getType())) {
validation.addWarning("Ignoring unknown tag type " + ie.getType(), "", "Metadata");
}
else {
Tag t = TiffTags.getTag(ie.getId());
String stype = TiffTags.tagTypes.get(ie.getType());
if (ie.getId() == 320) {
// Colormap length check
long bps = 0;
if (metadata.containsTagId(258))
bps = metadata.get(258).getFirstNumericValue();
long calc = 3 * (long) Math.pow(2, bps);
if (calc != ie.getCardinality()) {
validation.addError("Invalid cardinality for tag "
+ TiffTags.getTag(ie.getId()).getName() + "[" + ie.getCardinality() + "]",
"Metadata", stype);
}
}
try {
// Cardinality check
int card = Integer.parseInt(t.getCardinality());
if (card != ie.getCardinality())
validation.addError("Cardinality for tag " + TiffTags.getTag(ie.getId()).getName()
+ " must be " + card, "Metadata",
ie.getCardinality());
} catch (Exception e) {
// TODO: Deal with formulas?
}
}
if (ie.getId() < prevTagId) {
if (tagOrderTolerance > 0)
validation.addWarning("Tags are not in ascending order", "", "Metadata");
else
validation.addErrorLoc("Tags are not in ascending order", "Metadata");
}
prevTagId = ie.getId();
}
}
/**
* Report metadata.
*
* @param metadata the metadata
* @param doc the doc
* @return the element
*/
public Element reportMetadata(IfdTags metadata, Document doc) {
Element tags = doc.createElement("tags");
for (TagValue ie : metadata.getTags()) {
Element tag = doc.createElement("tag");
tag.setTextContent(ie.getId() + "");
tag.setAttribute("id", ie.getId() + "");
tag.setAttribute("type", ie.getType() + "");
tag.setAttribute("cardinality", ie.getCardinality() + "");
tag.setAttribute("offset", ie.getReadOffset() + "");
tags.appendChild(tag);
}
return tags;
}
/**
* Check if the tags that define the image are correct and consistent.
*
* @param ifd the ifd
* @param n the ifd number
* @param metadata the ifd metadata
*/
public void checkImage(IFD ifd, int n, IfdTags metadata) {
CheckCommonFields(ifd, n, metadata);
if (!metadata.containsTagId(TiffTags.getTagId("PhotometricInterpretation"))) {
validation.addErrorLoc("Missing Photometric Interpretation", "IFD" + n);
} else if (metadata.get(TiffTags.getTagId("PhotometricInterpretation")).getValue().size() != 1) {
validation.addErrorLoc("Invalid Photometric Interpretation", "IFD" + n);
} else {
photometric =
(int) metadata.get(TiffTags.getTagId("PhotometricInterpretation")).getFirstNumericValue();
switch (photometric) {
case 0:
case 1:
if (!metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))
|| metadata.get(TiffTags.getTagId("BitsPerSample")).getFirstNumericValue() == 1) {
type = ImageType.BILEVEL;
CheckBilevelImage(metadata, n);
} else {
type = ImageType.GRAYSCALE;
CheckGrayscaleImage(metadata, n);
}
break;
case 2:
type = ImageType.RGB;
CheckRGBImage(metadata, n);
break;
case 3:
type = ImageType.PALETTE;
CheckPalleteImage(metadata, n);
break;
case 4:
type = ImageType.TRANSPARENCY_MASK;
CheckTransparencyMask(metadata, n);
break;
case 5:
type = ImageType.CMYK;
CheckCMYK(metadata, n);
break;
case 6:
type = ImageType.YCbCr;
CheckYCbCr(metadata, n);
break;
case 8:
case 9:
case 10:
type = ImageType.CIELab;
CheckCIELab(metadata, n);
break;
default:
validation.addWarning("Unknown Photometric Interpretation", "" + photometric, "IFD" + n);
break;
}
}
}
/**
* Report image.
*
* @param ifd the ifd
* @param n the n
* @param metadata the metadata
* @param doc the doc
* @return the element
*/
public Element reportImage(IFD ifd, int n, IfdTags metadata, Document doc) {
Element image = doc.createElement("image");
// Photometric interpretation
if (metadata.containsTagId(TiffTags.getTagId("PhotometricInterpretation"))) {
Element photo = doc.createElement("photometricinterpretation");
int photov =
(int) metadata.get(TiffTags.getTagId("PhotometricInterpretation")).getFirstNumericValue();
photo.setAttribute("value", photov + "");
photo.setAttribute("length", metadata.get(TiffTags.getTagId("PhotometricInterpretation"))
.getValue().size()
+ "");
}
return image;
}
/**
* Check Bilevel Image.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckBilevelImage(IfdTags metadata, int n) {
// Compression
long comp = metadata.get(TiffTags.getTagId("Compression")).getFirstNumericValue();
// if (comp != 1 && comp != 2 && comp != 32773)
if (comp < 1)
validation.addError("Invalid Compression", "IFD" + n, comp);
}
/**
* Check Grayscale Image.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckGrayscaleImage(IfdTags metadata, int n) {
// Bits per Sample
long bps = metadata.get(TiffTags.getTagId("BitsPerSample")).getFirstNumericValue();
// if (bps != 4 && bps != 8)
if (bps < 1)
validation.addError("Invalid Bits per Sample", "IFD" + n, bps);
// Compression
long comp = metadata.get(TiffTags.getTagId("Compression")).getFirstNumericValue();
// if (comp != 1 && comp != 32773)
if (comp < 1)
validation.addError("Invalid Compression", "IFD" + n, comp);
}
/**
* Check Pallete Color Image.
*
* @param metadata the metadata
* @param nifd the IFD number
*/
private void CheckPalleteImage(IfdTags metadata, int nifd) {
// Color Map
if (!metadata.containsTagId(TiffTags.getTagId("ColorMap"))) {
validation.addErrorLoc("Missing Color Map", "IFD" + nifd);
} else {
int n = metadata.get(TiffTags.getTagId("ColorMap")).getCardinality();
if (n != 3 * (int) Math.pow(2, metadata.get(TiffTags.getTagId("BitsPerSample"))
.getFirstNumericValue()))
validation.addError("Incorrect Color Map Cardinality", "IFD" + nifd, metadata.get(320)
.getCardinality());
}
// Bits per Sample
long bps = metadata.get(TiffTags.getTagId("BitsPerSample")).getFirstNumericValue();
if (bps != 4 && bps != 8)
validation.addError("Invalid Bits per Sample", "IFD" + nifd, bps);
// Compression
long comp = metadata.get(TiffTags.getTagId("Compression")).getFirstNumericValue();
// if (comp != 1 && comp != 32773)
if (comp < 1)
validation.addError("Invalid Compression", "IFD" + nifd, comp);
}
/**
* Check transparency mask.
*
* @param metadata the metadata
* @param n the ifd number
*/
private void CheckTransparencyMask(IfdTags metadata, int n) {
// Samples per pixel
if (!metadata.containsTagId(TiffTags.getTagId("SamplesPerPixel"))) {
validation.addErrorLoc("Missing Samples Per Pixel", "IFD" + n);
} else {
long spp = metadata.get(TiffTags.getTagId("SamplesPerPixel")).getFirstNumericValue();
if (spp != 1) {
validation.addError("Invalid Samples Per Pixel", "IFD" + n, spp);
}
}
// BitsPerSample
if (!metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))) {
validation.addErrorLoc("Missing BitsPerSample", "IFD" + n);
} else {
long bps = metadata.get(TiffTags.getTagId("BitsPerSample")).getFirstNumericValue();
if (bps != 1) {
validation.addError("Invalid BitsPerSample", "IFD" + n, bps);
}
}
}
/**
* Check CMYK.
*
* @param metadata the metadata
* @param n the ifd number
*/
private void CheckCMYK(IfdTags metadata, int n) {
// Samples per pixel
if (!metadata.containsTagId(TiffTags.getTagId("SamplesPerPixel"))) {
validation.addErrorLoc("Missing Samples Per Pixel", "IFD" + n);
}
// BitsPerSample
if (!metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))) {
validation.addErrorLoc("Missing BitsPerSample", "IFD" + n);
}
}
/**
* Check YCbCr.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckYCbCr(IfdTags metadata, int n) {
// Samples per pixel
if (!metadata.containsTagId(TiffTags.getTagId("SamplesPerPixel"))) {
validation.addErrorLoc("Missing Samples Per Pixel", "IFD" + n);
} else {
long spp = metadata.get(TiffTags.getTagId("SamplesPerPixel")).getFirstNumericValue();
if (spp != 3) {
validation.addError("Invalid Samples Per Pixel", "IFD" + n, spp);
}
}
// BitsPerSample
if (!metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))) {
validation.addErrorLoc("Missing BitsPerSample", "IFD" + n);
} else {
for (abstractTiffType vi : metadata.get(TiffTags.getTagId("BitsPerSample")).getValue()) {
if (vi.toInt() != 8) {
validation.addError("Invalid BitsPerSample", "IFD" + n, vi.toInt());
break;
}
}
}
// Compression
// long comp = metadata.get(TiffTags.getTagId("Compression")).getFirstNumericValue();
// if (comp != 1 && comp != 5 && comp != 6)
// validation.addError("Invalid Compression", comp);
// if (!metadata.containsTagId(TiffTags.getTagId("ReferenceBlackWhite")))
// validation.addError("Missing ReferenceBlackWhite");
// if (!metadata.containsTagId(TiffTags.getTagId("YCbCrCoefficients")))
// validation.addError("Missing YCbCr Coefficients");
// if (!metadata.containsTagId(TiffTags.getTagId("YCbCrSubSampling")))
// validation.addError("Missing YCbCr SubSampling");
// if (!metadata.containsTagId(TiffTags.getTagId("YCbCrPositioning")))
// validation.addError("Missing YCbCr Positioning");
}
/**
* Check CIELab.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckCIELab(IfdTags metadata, int n) {
// BitsPerSample
if (!metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))) {
validation.addErrorLoc("Missing BitsPerSample", "IFD" + n);
} else {
for (abstractTiffType vi : metadata.get(TiffTags.getTagId("BitsPerSample")).getValue()) {
if (vi.toInt() != 8) {
validation.addError("Invalid BitsPerSample", "IFD" + n, vi.toInt());
break;
}
}
}
}
/**
* Check RGB Image.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckRGBImage(IfdTags metadata, int n) {
// Samples per Pixel
long samples = metadata.get(TiffTags.getTagId("SamplesPerPixel")).getFirstNumericValue();
if (samples < 3)
validation.addError("Invalid Samples per Pixel", "IFD" + n, samples);
// Compression
long comp = metadata.get(TiffTags.getTagId("Compression")).getFirstNumericValue();
// if (comp != 1 && comp != 32773)
if (comp < 1)
validation.addError("Invalid Compression", "IFD" + n, comp);
}
/**
* Check common fields.
*
* @param ifd the ifd
* @param n the ifd number
* @param metadata the ifd metadata
*/
private void CheckCommonFields(IFD ifd, int n, IfdTags metadata) {
int id;
// Width tag is mandatory
id = TiffTags.getTagId("ImageWidth");
if (!metadata.containsTagId(id))
validation.addError("Missing required field", "IFD" + n, TiffTags.getTag(id).getName());
else {
long val = metadata.get(id).getFirstNumericValue();
if (val <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Height tag is mandatory
id = TiffTags.getTagId("ImageLength");
if (!metadata.containsTagId(id))
validation.addError("Missing required field", "IFD" + n, TiffTags.getTag(id).getName());
else {
long val = metadata.get(id).getFirstNumericValue();
if (val <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check Resolution Unit
id = TiffTags.getTagId("ResolutionUnit");
if (!metadata.containsTagId(id)) {
// validation.addError("Missing required field", TiffTags.getTag(id).getName());
} else {
long val = metadata.get(id).getFirstNumericValue();
if (val != 1 && val != 2 && val != 3)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check XResolution
id = TiffTags.getTagId("XResolution");
if (!metadata.containsTagId(id)) {
// validation.addError("Missing required field", TiffTags.getTag(id).name);
} else {
float val = ((Rational) metadata.get(id).getValue().get(0)).getFloatValue();
if (val <= 0f)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check YResolution
id = TiffTags.getTagId("YResolution");
if (!metadata.containsTagId(id)) {
// validation.addError("Missing required field", TiffTags.getTag(id).name);
} else {
float val = ((Rational) metadata.get(id).getValue().get(0)).getFloatValue();
if (val <= 0f)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check Planar Configuration
id = TiffTags.getTagId("PlanarConfiguration");
if (!metadata.containsTagId(id)) {
// validation.addError("Missing required field", TiffTags.getTag(id).name);
} else {
long val = metadata.get(id).getFirstNumericValue();
if (val != 1 && val != 2)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check Orientation
id = TiffTags.getTagId("Orientation");
if (!metadata.containsTagId(id)) {
// validation.addError("Missing required field", TiffTags.getTag(id).name);
} else {
long val = metadata.get(id).getFirstNumericValue();
if (val <= 0 || val > 8)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
val);
}
// Check whether the image is stored in tiles or strips
strips = ifd.hasStrips();
tiles = ifd.hasTiles();
if (!strips && !tiles)
validation.addErrorLoc("Missing image organization tags", "IFD" + n);
else if (strips && tiles)
validation.addErrorLoc("Image in both strips and tiles", "IFD" + n);
else if (strips) {
CheckStrips(metadata, n);
} else if (tiles) {
CheckTiles(ifd, metadata, n);
}
// Check pixel samples bits
if (metadata.containsTagId(TiffTags.getTagId("BitsPerSample"))
&& metadata.containsTagId(TiffTags.getTagId("SampesPerPixel"))) {
long spp = metadata.get(TiffTags.getTagId("SamplesPerPixel")).getFirstNumericValue();
int bps = metadata.get(TiffTags.getTagId("BitsPerSample")).getValue().size();
if (spp != bps) {
validation
.addErrorLoc("Samples per Pixel and Bits per Sample count do not match", "IFD"
+ n);
if (bps == 1) {
// TODO: Tolerate and proceed as if the BitsPerSample tag had a count equal to the
// SamplesPerPixel tag value, and with all values equal to the single value actually given
}
}
if (metadata.containsTagId(TiffTags.getTagId("ExtraSamples"))) {
int ext = metadata.get(TiffTags.getTagId("ExtraSamples")).getValue().size();
if (ext + 3 != bps) {
validation.addError("Incorrect Extra Samples Count", "IFD" + n, ext);
} else if (ext > 0 && bps <= 3) {
validation.addError("Unnecessary Extra Samples", "IFD" + n, ext);
}
}
if (bps > 1) {
TagValue lbps = metadata.get(TiffTags.getTagId("BitsPerSample"));
if (lbps == null || lbps.getValue() == null) {
validation.addErrorLoc("Invalid Bits per Sample", "IFD" + n);
} else {
boolean distinct_bps_samples = false;
for (int i = 1; i < lbps.getCardinality(); i++) {
if (lbps.getValue().get(i).toInt() != lbps.getValue().get(i - 1).toInt())
distinct_bps_samples = true;
}
if (distinct_bps_samples)
validation.addErrorLoc("Distinct Bits per Sample values", "IFD" + n);
}
}
}
}
/**
* Check that the strips containing the image are well-formed.
*
* @param metadata the metadata
* @param n the IFD number
*/
private void CheckStrips(IfdTags metadata, int n) {
long offset;
int id;
// Strip offsets
id = TiffTags.getTagId("StripOffsets");
offset = metadata.get(id).getFirstNumericValue();
int nso = metadata.get(id).getCardinality();
if (offset <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
offset);
// Strip Byte Counts
id = TiffTags.getTagId("StripBYTECount");
offset = metadata.get(id).getFirstNumericValue();
int nsc = metadata.get(id).getCardinality();
if (offset <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
offset);
if (nso != nsc) {
validation.addErrorLoc("Inconsistent strip lengths", "IFD" + n);
}
int pixelSize = 0;
for (int i = 0; i < metadata.get("BitsPerSample").getCardinality(); i++) {
pixelSize += metadata.get("BitsPerSample").getValue().get(i).toInt();
}
if (metadata.get("Compression").getFirstNumericValue() == 1
&& pixelSize >= 8) {
int calculatedImageLength = 0;
for (int i = 0; i < nsc; i++) {
calculatedImageLength += metadata.get(id).getValue().get(i).toInt();
}
if (calculatedImageLength != metadata.get("ImageLength").getFirstNumericValue()
* metadata.get("ImageWidth").getFirstNumericValue() * pixelSize / 8) {
// validation.toString();
validation.addErrorLoc("Calculated and declared image size do not match", "IFD" + n);
}
}
// Rows per Strip
id = TiffTags.getTagId("RowsPerStrip");
if (!metadata.containsTagId(id)) {
if (rowsPerStripTolerance > 0)
validation.addWarning("Missing required field", TiffTags.getTag(id).getName(), "IFD" + n);
else
validation.addError("Missing required field", "IFD" + n, TiffTags.getTag(id).getName());
} else {
offset = metadata.get(id).getFirstNumericValue();
if (offset <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
offset);
}
}
/**
* Check that the tiles containing the image are well-formed.
*
* @param ifd the ifd
* @param metadata the metadata
* @param n the ifd number
*/
private void CheckTiles(IFD ifd, IfdTags metadata, int n) {
long offset;
int id;
// Check Tile Offsets
id = TiffTags.getTagId("TileOffsets");
offset = metadata.get(id).getFirstNumericValue();
int no = metadata.get(id).getCardinality();
if (offset <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
offset);
// Check Tile Byte Counts
id = TiffTags.getTagId("TileBYTECounts");
offset = metadata.get(id).getFirstNumericValue();
int nc = metadata.get(id).getCardinality();
if (offset <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
offset);
if (no != nc) {
validation.addErrorLoc("Inconsistent tile lengths", "IFD" + n);
}
// Check Tile Width
long tileWidth = 0;
id = TiffTags.getTagId("TileWidth");
if (!metadata.containsTagId(id))
validation.addErrorLoc("Missing required field for tiles " + TiffTags.getTag(id).getName(),
"IFD" + n);
else {
tileWidth = metadata.get(id).getFirstNumericValue();
if (tileWidth <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
tileWidth);
}
// Check Tile Length
id = TiffTags.getTagId("TileLength");
long tileLength = 0;
if (!metadata.containsTagId(id))
validation.addErrorLoc("Missing required field for tiles " + TiffTags.getTag(id).getName(),
"IFD" + n);
else {
tileLength = metadata.get(id).getFirstNumericValue();
if (tileLength <= 0)
validation.addError("Invalid value for field " + TiffTags.getTag(id).getName(), "IFD" + n,
tileLength);
}
long tilesPerImage =
((metadata.get(TiffTags.getTagId("ImageWidth")).getFirstNumericValue() + tileWidth - 1) / tileWidth)
* ((metadata.get(TiffTags.getTagId("ImageLength")).getFirstNumericValue() + tileLength - 1) / tileLength);
// Check Plannar Configuration
id = TiffTags.getTagId("PlanarConfiguration");
int idspp = TiffTags.getTagId("SamplesPerPixel");
if (metadata.containsTagId(id) && metadata.containsTagId(idspp)) {
long planar = metadata.get(id).getFirstNumericValue();
long spp = metadata.get(idspp).getFirstNumericValue();
if (planar == 2) {
long spp_tpi = spp * tilesPerImage;
if (ifd.getImageTiles().getTiles().size() < spp_tpi) {
validation.addErrorLoc("Insufficient tiles", "IFD" + n);
}
}
}
}
/**
* Gets the image type.
*
* @return the type
*/
public ImageType getType() {
return type;
}
}