Reputation: 175
Java extract colorSpace and PCS from ICC_Profile to verify the integrety of an image
First (I forgot to say I'm new to java and it's my first post here, so if I make some mistakes, pls correct me ;) ) I got the problem, that I got a lot of images. Between these images are some which are corruped (e.g. a picture with ICC-Profile CMYK and Lab has the pixel-scheme RGB or other example ICC: RGB and XYZ and pixel-scheme CMYK). I need to programm a Java application to test these files for this specific category.
FileTypes are: JPG,TIFF,GIF,PNG and BMP.
I installed already ImageIO and ImageIO from twelvemonkeys to accept CMYK-Files. I tried to read out the Meta/exif-data and also the ICC-data but it didn't show me the information I need.
I tried to read out the Data with PhotoMe but therefor I have to look up all files one by one and compare it by hand. So I knew the data is in the files and not empty.
So the goal is to read out the metadata and ICC-Profil and compare the specific values.
Thanks Zorian
Edit: I managed to get the Pixel-Scheme, I think, but I can't acces the other informations. Here's the code to acces the Pixel-Scheme (or ColorSpace). So Have u got an idea of getting the other things?
int cst = 0;
ColorSpace cs= image.getColorModel().getColorSpace();
System.out.println("--> "+cs.getType());
cst = cs.getType();
PixelScheme pisc = new PixelScheme();
pisc.showPixelSchema(cst);
log.append("Pixel-Scheme = " + pisc.showPixelScheme(cst) + "\n");
//Class Pixel-Scheme
//the Case values taken from a table from java.awt.color.ColorSpace;
package components;
import java.awt.color.ColorSpace;
public class PixelSchema {
public String showPixelSchema (int cst)
{
switch (cst)
{
case 0: ptype = "XYZ";
break;
case 1: ptype = "Lab";
break;
case 2: ptype = "Luv";
break;
case 3: ptype = "YCbCr";
break;
case 4: ptype = "Yxy";
break;
case 5: ptype = "RGB";
break;
case 6: ptype = "GRAY";
break;
case 7: ptype = "HSV";
break;
case 8: ptype = "HLS";
break;
case 9: ptype = "CMYK";
break;
case 11: ptype = "CMY";
break;
case 12: ptype = "2CLR";
break;
case 13: ptype = "3CLR";
break;
case 14: ptype = "4CLR";
break;
case 15: ptype = "5CLR";
break;
case 16: ptype = "6CLR";
break;
case 17: ptype = "7CLR";
break;
case 18: ptype = "8CLR";
break;
case 19: ptype = "9CLR";
break;
case 20: ptype = "ACLR";
break;
case 21: ptype = "BCLR";
break;
case 22: ptype = "CCLR";
break;
case 23: ptype = "DCLR";
break;
case 24: ptype = "ECLR";
break;
case 25: ptype = "FCLR";
break;
case 1000: ptype = "sRGB";
break;
case 1001: ptype = "CIEXYZ";
break;
case 1002: ptype = "PYCC";
break;
case 1003: ptype = "GRAY";
break;
case 1004: ptype = "LINEAR_RGB";
break;
default: ptype = "ERROR!";
break;
}
return ptype;
}
}
Update: I implemented the snippet but got still an error in Netbeans but somehow it work and display me the needed data.
public void ICC(File file) throws IOException
{
//Error indicated cause of file (but I don't know an other way to import my image (tried to convert it to some kinds of arrays but it won't work))
Map<MetadataType, Metadata> metadataMap = Metadata.readMetadata(file));
ICCProfile icc_profile = (ICCProfile)metadataMap.get(MetadataType.ICC_PROFILE);
if(icc_profile != null) {
icc_profile.showMetadata();
log.append("PCS = ");
log.append("Color Space = ");
}
}
But now my question is: Is there the possibility to get only this two pieces of data [Color Space: CMYK + PCS: Lab] out of the header and write them to a variable? (The two ones in the brackets) I need it because I have to display the results of the Color Space and PCS and compare it to the PixelScheme.
Update 2: I finally got to all data I need, but still got the problem from Update 1! Here's my code snippet for this Error!
public void ICC(File file) throws IOException
{
Map<MetadataType, Metadata> metadataMap = Metadata.readMetadata(file);
ICCProfile icc_profile = (ICCProfile)metadataMap.get(MetadataType.ICC_PROFILE);
if(icc_profile != null)
{
icc_profile.showMetadata();
String iccs = icc_profile.getReader().getColorSpace();
String icpcs = icc_profile.getReader().getPCS();
log.append("Color Space = " + iccs + "\n");
log.append("PCS = " + icpcs + "\n");
}
}
Update 3: Error found ;) it was 1 ) too much
Thanks a lot for this lib!
Upvotes: 1
Views: 1411
Answers (1)
Reputation: 2715
You may want to try icafe. It support extracting ICC_Profile from TIFF, JPEG, PNG. The following is some information from a specific run:
*** Start of ICC_Profile Header ***
Profile Size: 3144
CMM Type: Lino
Version: 2.10
Profile/Device Class: 'mntr': display devices - CRTs and LCDs
Color Space: RGB
PCS: XYZ
Date Created: 1998/2/9, 6:49:0
Profile File Signature: acsp
Primary Platform Signature: MSFT
Flags: not embedded, used independently
Device Manufacturer: IEC
Device Model: sRGB
Device Attributes: reflective, glossy, positive, color
Rendering Intent: media-relative colorimetric
PCS Illuminant: X = 0.9642029, Y = 1.0, Z = 0.8249054
Profile Creator: HP
Profile ID: [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
*** End of ICC_Profile Header ***
*** Start of ICC_Profile Tag Table ***
Tag Count: 17
Tag# 0, Tag Name: bTRC (blueTRCTag), Data Offset: 1084, Data Length: 2060
Tag# 1, Tag Name: bXYZ (blueMatrixColumnTag), Data Offset: 576, Data Length: 20
Tag# 2, Tag Name: BKPT (mediaBlackPointTag), Data Offset: 516, Data Length: 20
Tag# 3, Tag Name: cprt (copyrightTag), Data Offset: 336, Data Length: 51
Tag# 4, Tag Name: desc (profileDescriptionTag), Data Offset: 388, Data Length: 108
Tag# 5, Tag Name: dmdd (deviceModelDescTag), Data Offset: 708, Data Length: 136
Tag# 6, Tag Name: dmnd (deviceMfgDescTag), Data Offset: 596, Data Length: 112
Tag# 7, Tag Name: gTRC (greenTRCTag), Data Offset: 1084, Data Length: 2060
Tag# 8, Tag Name: gXYZ (greenMatrixColumnTag), Data Offset: 556, Data Length: 20
Tag# 9, Tag Name: lumi (luminanceTag), Data Offset: 1016, Data Length: 20
Tag# 10, Tag Name: meas (measurementTag), Data Offset: 1036, Data Length: 36
Tag# 11, Tag Name: rTRC (redTRCTag), Data Offset: 1084, Data Length: 2060
Tag# 12, Tag Name: rXYZ (redMatrixColumnTag), Data Offset: 536, Data Length: 20
Tag# 13, Tag Name: tech (technologyTag), Data Offset: 1072, Data Length: 12
Tag# 14, Tag Name: view (viewingConditionsTag), Data Offset: 980, Data Length: 36
Tag# 15, Tag Name: vued (viewingCondDescTag), Data Offset: 844, Data Length: 134
Tag# 16, Tag Name: wtpt (mediaWhitePointTag), Data Offset: 496, Data Length: 20
*** End of ICC_Profile Tag Table ***
Here is a code sample to start with:
import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import com.icafe4j.image.meta.Metadata;
import com.icafe4j.image.meta.MetadataEntry;
import com.icafe4j.image.meta.MetadataType;
import com.icafe4j.image.meta.icc.ICCProfile;
public class ExtractICCProfile {
public static void main(String[] args) throws IOException {
Map<MetadataType, Metadata> metadataMap = Metadata.readMetadata(args[0]);
ICCProfile icc_profile = (ICCProfile)metadataMap.get(MetadataType.ICC_PROFILE);
if(icc_profile != null) {
Iterator<MetadataEntry> iterator = icc_profile.iterator();
while(iterator.hasNext()) {
MetadataEntry item = iterator.next();
printMetadata(item, "", " ");
}
}
}
private void printMetadata(MetadataEntry entry, String indent, String increment) {
logger.info(indent + entry.getKey() (StringUtils.isNullOrEmpty(entry.getValue())? "" : ": " + entry.getValue()));
if(entry.isMetadataEntryGroup()) {
indent += increment;
Collection<MetadataEntry> entries = entry.getMetadataEntries();
for(MetadataEntry e : entries) {
printMetadata(e, indent, increment);
}
}
}
}
Grab "icafe.jar" from the "lib" directory of the above link and you are good to go test with the code sample.
Update: your can show only colorSpace and PCS like this:
if(icc_profile != null)
{
String colorSpace = icc_profile.getColorSpace();
String pcs = icc_profile.getPCS();
}
Update 2:
If you need to read further data from a specific tag, you can grab the tag table first and then get the tag entry you are interested in. Here is a snippet:
public void readTag(ProfileTag tag) {
ProfileTagTable tagTable = reader.getTagTable();
TagEntry tag = tagTable.getTagEntry(tag);
// Do your stuff with tag entry
}
And here is the nested TagEntry class:
public static class TagEntry implements Comparable<TagEntry> {
private int profileTag;
private int dataOffset;
private int dataLength;
private byte[] data;
public TagEntry(int profileTag, int dataOffset, int dataLength, byte[] data) {
this.profileTag = profileTag;
this.dataOffset = dataOffset;
this.dataLength = dataLength;
this.data = data;
}
@Override
public int compareTo(TagEntry o) {
return (int)((this.profileTag&0xffffffffL) - (o.profileTag&0x0ffffffffL));
}
public int getProfileTag() {
return profileTag;
}
public int getDataOffset() {
return dataOffset;
}
public int getDataLength() {
return dataLength;
}
public byte[] getData() {
return data;
}
}
Upvotes: 2
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