ImagePlus openJpegOrGif(String dir, String name) {
ImagePlus imp = null;
Image img = Toolkit.getDefaultToolkit().createImage(dir + name);
if (img != null) {
try {
imp = new ImagePlus(name, img);
} catch (IllegalStateException e) {
IJ.error(
"Opener", e.getMessage() + "\n(Note: IJ cannot open CMYK JPEGs)\n \n" + dir + name);
return null; // error loading image
}
if (imp.getType() == ImagePlus.COLOR_RGB) convertGrayJpegTo8Bits(imp);
FileInfo fi = new FileInfo();
fi.fileFormat = fi.GIF_OR_JPG;
fi.fileName = name;
fi.directory = dir;
imp.setFileInfo(fi);
}
return imp;
}
/** Restores original disk or network version of image. */
public void revertToSaved(ImagePlus imp) {
Image img;
ProgressBar pb = IJ.getInstance().getProgressBar();
ImageProcessor ip;
String path = fi.directory + fi.fileName;
if (fi.fileFormat == fi.GIF_OR_JPG) {
// restore gif or jpg
img = Toolkit.getDefaultToolkit().createImage(path);
imp.setImage(img);
if (imp.getType() == ImagePlus.COLOR_RGB) Opener.convertGrayJpegTo8Bits(imp);
return;
}
if (fi.fileFormat == fi.DICOM) {
// restore DICOM
ImagePlus imp2 = (ImagePlus) IJ.runPlugIn("ij.plugin.DICOM", path);
if (imp2 != null) imp.setProcessor(null, imp2.getProcessor());
return;
}
if (fi.fileFormat == fi.BMP) {
// restore BMP
ImagePlus imp2 = (ImagePlus) IJ.runPlugIn("ij.plugin.BMP_Reader", path);
if (imp2 != null) imp.setProcessor(null, imp2.getProcessor());
return;
}
if (fi.fileFormat == fi.PGM) {
// restore PGM
ImagePlus imp2 = (ImagePlus) IJ.runPlugIn("ij.plugin.PGM_Reader", path);
if (imp2 != null) imp.setProcessor(null, imp2.getProcessor());
return;
}
if (fi.fileFormat == fi.ZIP_ARCHIVE) {
// restore ".zip" file
ImagePlus imp2 = (new Opener()).openZip(path);
if (imp2 != null) imp.setProcessor(null, imp2.getProcessor());
return;
}
// restore PNG or another image opened using ImageIO
if (fi.fileFormat == fi.IMAGEIO) {
ImagePlus imp2 = (new Opener()).openUsingImageIO(path);
if (imp2 != null) imp.setProcessor(null, imp2.getProcessor());
return;
}
if (fi.nImages > 1) return;
ColorModel cm;
if (fi.url == null || fi.url.equals("")) IJ.showStatus("Loading: " + path);
else IJ.showStatus("Loading: " + fi.url + fi.fileName);
Object pixels = readPixels(fi);
if (pixels == null) return;
cm = createColorModel(fi);
switch (fi.fileType) {
case FileInfo.GRAY8:
case FileInfo.COLOR8:
case FileInfo.BITMAP:
ip = new ByteProcessor(width, height, (byte[]) pixels, cm);
imp.setProcessor(null, ip);
break;
case FileInfo.GRAY16_SIGNED:
case FileInfo.GRAY16_UNSIGNED:
case FileInfo.GRAY12_UNSIGNED:
ip = new ShortProcessor(width, height, (short[]) pixels, cm);
imp.setProcessor(null, ip);
break;
case FileInfo.GRAY32_INT:
case FileInfo.GRAY32_FLOAT:
ip = new FloatProcessor(width, height, (float[]) pixels, cm);
imp.setProcessor(null, ip);
break;
case FileInfo.RGB:
case FileInfo.BGR:
case FileInfo.ARGB:
case FileInfo.ABGR:
case FileInfo.RGB_PLANAR:
img =
Toolkit.getDefaultToolkit()
.createImage(new MemoryImageSource(width, height, (int[]) pixels, 0, width));
imp.setImage(img);
break;
}
}