Please send me privately the tiff.
Best Regards,
Paulo Soares
----- Original Message -----
From: "Aaron Kelley" <[EMAIL PROTECTED]>
To: "'Paulo Soares'" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Friday, March 21, 2003 20:33
Subject: RE: [iText-questions] Group 3 TIFF compression
> It is a multi-strip image and my code handles multi-strip images of
> Group 4 compression fine. In fact, that link you sent was a response to
> an older question I had (to get the multi-strip Group 4 compression
> working). I was able to figure everything out from what you provided
> last time. I now have a method that works with most of the TIFF image
> types I have to deal with, except the Group 3 compression. I run it
> through the debugger and it seems to be working fine (building the
> images from the strips), but the PDF is virtually empty that it creates.
> My method that deals with the TIFFS is below. Any thoughts where the
> problem is would be appreciated.
>
> public void addPage(String imagePath) throws IOException {
> File inputFile = new File(imagePath);
>
> try {
> SeekableStream s = new FileSeekableStream(inputFile);
> TIFFDirectory dir = new TIFFDirectory(s, 0);
> long IFDOffset = dir.getIFDOffset();
> while (IFDOffset != 0L) {
> dir = new TIFFDirectory(s, IFDOffset, 0);
> IFDOffset = dir.getNextIFDOffset();
>
> long type = -1;
> if
> (dir.isTagPresent(TIFFImageDecoder.TIFF_RESOLUTION_UNIT)) {
> type =
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_RESOLUTION_UNIT);
> if (type != 2) {
> System.err.println("Wrong format! Size not in
> inches.");
> }
> }
>
> float xres =
> dir.getFieldAsFloat(TIFFImageDecoder.TIFF_X_RESOLUTION);
> float yres =
> dir.getFieldAsFloat(TIFFImageDecoder.TIFF_Y_RESOLUTION);
>
> long h =
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_IMAGE_LENGTH);
> long w =
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_IMAGE_WIDTH);
> height = (int) h;
> width = (int) w;
>
> float scaledHeight = h / (yres / 72f);
> float scaledWidth = w / (xres / 72f);
>
> document.setPageSize(new Rectangle(scaledWidth,
> scaledHeight));
>
> long rowsStrip =
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_ROWS_PER_STRIP);
> TIFFField field =
> dir.getField(TIFFImageDecoder.TIFF_STRIP_OFFSETS);
> long offset[];
> if (field.getType() == TIFFField.TIFF_LONG) {
> offset = field.getAsLongs();
> } else {
> // must be short
> short temp[] = field.getAsShorts();
> offset = new long[temp.length];
> for (int k = 0; k < temp.length; ++k) {
> offset[k] = temp[k];
> }
> }
> field =
> dir.getField(TIFFImageDecoder.TIFF_STRIP_BYTE_COUNTS);
> long size[];
> if (field.getType() == TIFFField.TIFF_LONG) {
> size = field.getAsLongs();
> } else {
> // must be short
> short temp[] = field.getAsShorts();
> size = new long[temp.length];
> for (int k = 0; k < temp.length; ++k) {
> size[k] = temp[k];
> }
> }
> boolean reverse = false;
> if (dir.isTagPresent(TIFFImageDecoder.TIFF_FILL_ORDER))
> {
> reverse =
> (dir.getFieldAsLong(TIFFImageDecoder.TIFF_FILL_ORDER) == 2L);
> }
> int compression = (int)
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_COMPRESSION);
> switch (compression) {
> case TIFFImage.COMP_NONE:
> throw new IOException("Images without
> compression are not supported by iCris.");
> case TIFFImage.COMP_FAX_G3_1D:
> compression = Image.CCITTG3_1D;
> break;
> case TIFFImage.COMP_FAX_G3_2D:
> compression = Image.CCITTG3_1D;
> if
> (dir.isTagPresent(TIFFImageDecoder.TIFF_T4_OPTIONS)) {
> if (((int)
>
> dir.getFieldAsLong(TIFFImageDecoder.TIFF_T4_OPTIONS) & 1) != 0) {
> compression = Image.CCITTG3_2D;
> }
> }
> break;
> case TIFFImage.COMP_FAX_G4_2D:
> compression = Image.CCITTG4;
> break;
> default:
> throw new IOException("Compression type " +
> compression + " not supported");
> }
>
> // Check if we need to create a new page
> if (constructedSecond) {
> document.newPage();
> } else {
> constructedSecond = true;
> if (useImageMask) {
> singleMask =
> Image.getInstance(Toolkit.getDefaultToolkit().createImage(imageMaskPath)
> , null);
> }
> }
>
> long rowsLeft = h;
> float totatHeight = 0;
> float scaleX = 72f / xres * 100;
> float scaleY = 72f / yres * 100;
> document.open();
> PdfContentByte cb = writer.getDirectContent();
> for (int k = 0; k < offset.length; ++k) {
> byte im[] = new byte[(int) size[k]];
> s.seek(offset[k]);
> s.readFully(im);
> Image img = Image.getInstance((int) w, (int)
> Math.min(rowsStrip, rowsLeft), reverse, compression, 0, im);
> rowsLeft -= rowsStrip;
> img.scalePercent(scaleX, scaleY);
> totatHeight += (float) scaleY / 100 * img.height();
>
> img.setAbsolutePosition(0, scaledHeight -
> totatHeight);
> cb.addImage(img);
>
> }
> }
> } catch (DocumentException e) {
> e.printStackTrace();
> } catch (IOException ex) {
> try {
> document.open();
> document.close();
> } finally {
> new File(pdfPath).delete();
> }
>
> throw ex;
> }
> }
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Paulo
> Soares
> Sent: Friday, March 14, 2003 11:55 AM
> To: 'Aaron Kelley'; [EMAIL PROTECTED]
> Subject: RE: [iText-questions] Group 3 TIFF compression
>
> It's probably a multi-strip image. See
> http://www.mail-archive.com/[EMAIL PROTECTED]/msg041
> 82
>
> Best Regards,
> Paulo Soares
>
> > -----Original Message-----
> > From: Aaron Kelley [SMTP:[EMAIL PROTECTED]
> > Sent: Friday, March 14, 2003 18:43
> > To: [EMAIL PROTECTED]
> > Subject: [iText-questions] Group 3 TIFF compression
> >
> > I have a tiff with Group 3 compression and I am having trouble putting
> the
> > image into a PDF with iText. I have a piece of code to detect the
> > compression (similar to Chap0612.java) and it is coming up as
> compression
> > = Image.CCITTG3_1D;
> >
> > The PDF is being generated basically blank (very small file size
> compared
> > to the image). I have this code working with all kinds of different
> TIFF
> > formats, but I cannot seem to get it to work for Group 3. Also, the
> > examples (Chap0611 and Chap0612) fail to create a PDF from this image.
> > Any ideas?
> >
> > Aaron Kelley | Software Developer
> > Tyler Technologies | Eagle Division
> >
> > Phone: 303.249.1821
> > Email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
> >
>
>
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