Unable to read JPEG image using ImageIO.read(File file)
I'm having problems reading this one JPEG file using ImageIO.read(File file) - it throws an exception with the message "Unsupported Image Type".
I have tried other JPEG images, and they seem to work fine.
The only differance I've been able to spot is that this file seems to include a thumbnail - is that known to cause problems with ImageIO.read()?
EDIT:
Added the resulting image:
Old post, but for future reference:
Inspired by this question and links found here, I've written a JPEGImageReader plugin for ImageIO that supports CMYK color models (both with original color model, or implicitly converted to RGB on read). The reader also does proper color conversion, using the ICC profile embedded in the JPEG stream, in contrast to other solutions mentioned here.
It's plain Java and does not require JAI. The source code and binary distributions are freely available at github.com/haraldk/TwelveMonkeys, and is covered by a BSD-style license.
Once you have it installed, it allows you to read CMYK JPEGs using ImageIO.read(...)
like this:
File cmykJPEGFile = new File(/*path*/);
BufferedImage image = ImageIO.read(cmykJPEGFile);
I.e.: In most cases, it's not necessary to modify your code.
Your image "Color Model" is CMYK, JPEGImageReader
(the inner class that reads your file) reads only RGB Color Model.
If you insist on reading CMYK images, then you will need to convert them, try this code.
UPDATE
Read a CMYK image into RGB BufferedImage.
File f = new File("/path/imagefile.jpg");
//Find a suitable ImageReader
Iterator readers = ImageIO.getImageReadersByFormatName("JPEG");
ImageReader reader = null;
while(readers.hasNext()) {
reader = (ImageReader)readers.next();
if(reader.canReadRaster()) {
break;
}
}
//Stream the image file (the original CMYK image)
ImageInputStream input = ImageIO.createImageInputStream(f);
reader.setInput(input);
//Read the image raster
Raster raster = reader.readRaster(0, null);
//Create a new RGB image
BufferedImage bi = new BufferedImage(raster.getWidth(), raster.getHeight(),
BufferedImage.TYPE_4BYTE_ABGR);
//Fill the new image with the old raster
bi.getRaster().setRect(raster);
UPDATE - March 2015 - Adding simulation images
Original images were removed from OP's dropbox. So I'm adding new images (not the originals) that simulates the problem that was happening with them.
First image is how a normal RGB image looks like.
Second image is how the same image will look like in CMYK color model.
You cannot actually see how it looks on the web because it will be converted to RGB by the host. To see exactly how it looks, take the RGB image and run it through an RGB to CMYK converter.
Third image is how the CMYK image will look like when read then written using Java ImageIO.
The problem that was happening with OP is they had something like image 2 which throws an exception when you try to read it.
I'm a bit late to the party. But it's probably still worth that I post my answer as none of the answers really solves the problem.
The solution requires Sanselan (or Apache Commons Imaging as it's called now) and it requires a reasonable CMYK color profile (.icc file). You can get the later one from Adobe or from eci.org.
The basic problem is that Java - out of the box - can only read JPEG files in RGB. If you have a CMYK file, you need to distinguish between regular CMYK, Adobe CMYK (with inverted values, i.e. 255 for no ink and 0 for maximum ink) and Adobe CYYK (some variant with inverted colors as well).
public class JpegReader {
public static final int COLOR_TYPE_RGB = 1;
public static final int COLOR_TYPE_CMYK = 2;
public static final int COLOR_TYPE_YCCK = 3;
private int colorType = COLOR_TYPE_RGB;
private boolean hasAdobeMarker = false;
public BufferedImage readImage(File file) throws IOException, ImageReadException {
colorType = COLOR_TYPE_RGB;
hasAdobeMarker = false;
ImageInputStream stream = ImageIO.createImageInputStream(file);
Iterator<ImageReader> iter = ImageIO.getImageReaders(stream);
while (iter.hasNext()) {
ImageReader reader = iter.next();
reader.setInput(stream);
BufferedImage image;
ICC_Profile profile = null;
try {
image = reader.read(0);
} catch (IIOException e) {
colorType = COLOR_TYPE_CMYK;
checkAdobeMarker(file);
profile = Sanselan.getICCProfile(file);
WritableRaster raster = (WritableRaster) reader.readRaster(0, null);
if (colorType == COLOR_TYPE_YCCK)
convertYcckToCmyk(raster);
if (hasAdobeMarker)
convertInvertedColors(raster);
image = convertCmykToRgb(raster, profile);
}
return image;
}
return null;
}
public void checkAdobeMarker(File file) throws IOException, ImageReadException {
JpegImageParser parser = new JpegImageParser();
ByteSource byteSource = new ByteSourceFile(file);
@SuppressWarnings("rawtypes")
ArrayList segments = parser.readSegments(byteSource, new int[] { 0xffee }, true);
if (segments != null && segments.size() >= 1) {
UnknownSegment app14Segment = (UnknownSegment) segments.get(0);
byte[] data = app14Segment.bytes;
if (data.length >= 12 && data[0] == 'A' && data[1] == 'd' && data[2] == 'o' && data[3] == 'b' && data[4] == 'e')
{
hasAdobeMarker = true;
int transform = app14Segment.bytes[11] & 0xff;
if (transform == 2)
colorType = COLOR_TYPE_YCCK;
}
}
}
public static void convertYcckToCmyk(WritableRaster raster) {
int height = raster.getHeight();
int width = raster.getWidth();
int stride = width * 4;
int[] pixelRow = new int[stride];
for (int h = 0; h < height; h++) {
raster.getPixels(0, h, width, 1, pixelRow);
for (int x = 0; x < stride; x += 4) {
int y = pixelRow[x];
int cb = pixelRow[x + 1];
int cr = pixelRow[x + 2];
int c = (int) (y + 1.402 * cr - 178.956);
int m = (int) (y - 0.34414 * cb - 0.71414 * cr + 135.95984);
y = (int) (y + 1.772 * cb - 226.316);
if (c < 0) c = 0; else if (c > 255) c = 255;
if (m < 0) m = 0; else if (m > 255) m = 255;
if (y < 0) y = 0; else if (y > 255) y = 255;
pixelRow[x] = 255 - c;
pixelRow[x + 1] = 255 - m;
pixelRow[x + 2] = 255 - y;
}
raster.setPixels(0, h, width, 1, pixelRow);
}
}
public static void convertInvertedColors(WritableRaster raster) {
int height = raster.getHeight();
int width = raster.getWidth();
int stride = width * 4;
int[] pixelRow = new int[stride];
for (int h = 0; h < height; h++) {
raster.getPixels(0, h, width, 1, pixelRow);
for (int x = 0; x < stride; x++)
pixelRow[x] = 255 - pixelRow[x];
raster.setPixels(0, h, width, 1, pixelRow);
}
}
public static BufferedImage convertCmykToRgb(Raster cmykRaster, ICC_Profile cmykProfile) throws IOException {
if (cmykProfile == null)
cmykProfile = ICC_Profile.getInstance(JpegReader.class.getResourceAsStream("/ISOcoated_v2_300_eci.icc"));
ICC_ColorSpace cmykCS = new ICC_ColorSpace(cmykProfile);
BufferedImage rgbImage = new BufferedImage(cmykRaster.getWidth(), cmykRaster.getHeight(), BufferedImage.TYPE_INT_RGB);
WritableRaster rgbRaster = rgbImage.getRaster();
ColorSpace rgbCS = rgbImage.getColorModel().getColorSpace();
ColorConvertOp cmykToRgb = new ColorConvertOp(cmykCS, rgbCS, null);
cmykToRgb.filter(cmykRaster, rgbRaster);
return rgbImage;
}
}
The code first tries to read the file using the regular method, which works for RGB files. If it fails, it reads the details of the color model (profile, Adobe marker, Adobe variant). Then it reads the raw pixel data (raster) and does all the necessary conversion (YCCK to CMYK, inverted colors, CMYK to RGB).
I'm not quite satisfied with my solution. While the colors are mostly good, dark areas are slightly too bright, in particular black isn't fully black. If anyone knows what I could improve, I'd be glad to hear it.
ImageIO.read()
->
File filePath = new File("C:\\Users\\chang\\Desktop\\05036877.jpg");
com.sun.image.codec.jpeg.JPEGImageDecoder jpegDecoder = JPEGCodec.createJPEGDecoder (new FileInputStream(filePath));
BufferedImage image = jpegDecoder.decodeAsBufferedImage();
I found https://stackoverflow.com/questions/22409... on here as well, this one does a great colour conversion
And combined both to get this:
private BufferedImage convertCMYK2RGB(BufferedImage image) throws IOException{
log.info("Converting a CYMK image to RGB");
//Create a new RGB image
BufferedImage rgbImage = new BufferedImage(image.getWidth(), image.getHeight(),
BufferedImage.TYPE_3BYTE_BGR);
// then do a funky color convert
ColorConvertOp op = new ColorConvertOp(null);
op.filter(image, rgbImage);
return rgbImage;
}