Author |
Topic |
|
ioan
USA
15 Posts |
Posted - Oct 19 2020 : 15:57:40
|
First of all, I don't have a current license for ImageEn, but I'm planning to buy one if I can make it work for what I need. Right now I'm using the trial version, but I have no luck with it. I have trouble duplicating the compression and everything else for a tiff image used for faxing. This resulting image is sent to an ATA device that converts the image into a raw fax and sends it to the receiving machine.
Attached are two tiff images, one called "good-fax.tiff" this one works fine when sending it to a fax machine for printing. The second one, "needs-conversion.tiff", needs to be converted to match the "good-fax" tiff image.
I tried all the code demos I found in this forum, but the resulting image always prints blank on the fax machine.
So far I used imagemagick for conversion, but even imagemagick has the same problem with the attached tiff.
Any help would be appreciated.
Edit:
Even just loading the "good-fax.tiff" and saving it, without any modifications, makes the tiff appear blank in Irfanview and it prints blank on the fax machine. Here is the code I used to load and save the tiff:
InImage := TIETIFFHandler.Create;
OutImage := TIETIFFHandler.Create;
Stream := TMemoryStream.Create;
Bitmap := TIEBitmap.Create;
IO := TImageEnIO.CreateFromBitmap(Bitmap);
try
if not InImage.ReadFile(source) or (InImage.GetPagesCount <= 0) then
raise Exception.Create('Error reading file');
for i2 := 0 to InImage.GetPagesCount - 1 do
begin
Stream.Size := 0;
InImage.WriteStream(Stream, i2);
Stream.Position := 0;
IO.LoadFromStream(Stream);
if IO.Aborting then
raise Exception.CreateFmt('Page load failure (%d)', [i2]);
// IO.IEBitmap.Resample(FAX_WIDTH, IO.IEBitmap.Height);
// IO.Params.TIFF_Compression := ioTIFF_G3FAX1D;
// IO.Params.DpiX := FAX_DPIX;
// IO.Params.DpiY := FAX_DPIY;
// IO.Params.BitsPerSample := 1;
// IO.Params.SamplesPerPixel := 1;
// IO.Params.TIFF_FillOrder := 1;
// IO.Params.TIFF_Orientation := 1;
Stream.Size := 0;
IO.SaveToStreamTIFF(Stream);
Stream.Position := 0;
if not OutImage.InsertPageAsStream(Stream, i2) then
raise Exception.CreateFmt('Page memory error (%d)', [i2]);
end;
try
OutImage.WriteFile(dest);
except
on E: Exception do
raise Exception.Create('Error saving file.' + E.Message);
end;
finally
InImage.Free;
OutImage.Free;
Stream.Free;
Bitmap.Free;
IO.Free;
end;
attach/ioan/20201019155525_tiff_example.zip 54.62 KB |
|
xequte
38616 Posts |
|
ioan
USA
15 Posts |
Posted - Oct 19 2020 : 19:07:32
|
Hi Nigel,
I just tried TIEMultiBitmap and I got the same results. Irfanview shows the page blank and the fax machine prints it blank, but windows built in viewer shows the tiff fine.
I tried with and without changing the compression, tried with resample and without - same results.
Bitmap := TIEMultiBitmap.Create;
Bitmap.ParamsEnabled := True;
Bitmap.Read(source);
// Bitmap.Params[0].TIFF_Compression := ioTIFF_G3FAX1D;
// Bitmap.Resample(0 ,FAX_WIDTH, Bitmap.ImageHeight[0], rfFastLinear);
// Bitmap.DuplicateCompressionInfo;
Bitmap.Write(dest);
Bitmap.Free;
|
|
|
xequte
38616 Posts |
Posted - Oct 19 2020 : 23:17:24
|
Hi
Please attach your source images so I can test it here.
Nigel Xequte Software www.imageen.com
|
|
|
ioan
USA
15 Posts |
Posted - Oct 20 2020 : 00:07:54
|
Attached are two tiff images, one called "good-fax.tiff" this one works fine when sending it to a fax machine for printing. The second one, "needs-conversion.tiff", needs to be converted to match the "good-fax" tiff image.
attach/ioan/202010200720_tiff_example.zip 54.62 KB |
|
|
xequte
38616 Posts |
Posted - Oct 20 2020 : 20:17:14
|
I'm afraid I can't see any difference between the two formats that I believe should make a difference. Are you able to get any further information from the fax manufacturer?
Nigel Xequte Software www.imageen.com
|
|
|
ioan
USA
15 Posts |
Posted - Oct 21 2020 : 13:32:06
|
Any fax machine from any manufacturer will work the same with those images, as far as I know. We have on our network tens of thousands of fax machines and none, that I know, will work well with the image called "needs-conversion.tiff", doesn't matter how I change it with imageen.
One problem I see is that even the image that already works, the one called "good-fax.tiff" in the zip archive, if I open it with imageen and then save it, with no modifications to the compression or anything else, it won't work anymore. Even Irfanview will show a blank page.
Not sure if it makes any difference, I don't know enough about tiff file format, but here is what I get when I just open a "good" tiff file and save it with imageen:
|
|
|
xequte
38616 Posts |
|
ioan
USA
15 Posts |
Posted - Oct 27 2020 : 11:52:04
|
I'll try the new version today and let you know how it goes.
|
|
|
ioan
USA
15 Posts |
Posted - Oct 27 2020 : 12:37:38
|
Only 1D codding is supported, so only OUT2 was accepted by the test fax machine, but it still printed blank.
Please resize the width of the image to 1728 while keeping the height the same, save it compressed G3 1D and I will try again. |
|
|
xequte
38616 Posts |
|
ioan
USA
15 Posts |
Posted - Oct 27 2020 : 15:45:15
|
YES! This worked. Thank you so much for taking the time to fix it! Please let me know when you release the fixes and have them in the trial so I can test it in my code. |
|
|
ioan
USA
15 Posts |
Posted - Oct 27 2020 : 17:19:59
|
We went ahead and purchased a new license because the trial I'm using solves some other unrelated problems we had.
Thanks again! |
|
|
xequte
38616 Posts |
Posted - Oct 27 2020 : 18:06:39
|
Thank you, but please also email me to get the updated source fixing the TIFF issue (it will be officially released with v9.2.6).
Nigel Xequte Software www.imageen.com
|
|
|
ioan
USA
15 Posts |
Posted - Oct 27 2020 : 19:45:58
|
Is this the most efficient way of changing the size and compression for a multi page tiff?
Bitmap := TIEMultiBitmap.Create;
try
Bitmap.ParamsEnabled := True;
Bitmap.Read(OpenPictureDialog1.FileName);
Bitmap.Params[0].TIFF_Compression := ioTIFF_G3FAX1D;
Bitmap.ResampleAll(FAX_WIDTH, Bitmap.ImageHeight[0]);
Bitmap.DuplicateCompressionInfo;
Bitmap.Write(OpenPictureDialog1.FileName + '-new.tiff');
finally
Bitmap.Free;
end;
|
|
|
xequte
38616 Posts |
Posted - Oct 28 2020 : 00:13:53
|
Yes, I don't think you can optimize that any further.
Note: You haven't specified a quality filter for ResampleAll, so the quality may be lacking. Although it will slow down the conversion, you might try the various quality filters to see which one suits you best:
https://www.imageen.com/help/TIEMultiBitmap.ResampleAll.html
Nigel Xequte Software www.imageen.com
|
|
|
ioan
USA
15 Posts |
Posted - Oct 28 2020 : 14:36:10
|
Will this code ensure that all frames in a mutipage tiff will have the same parameters?
tiff := TIEMultiBitmap.Create;
try
tiff.ParamsEnabled := True;
tiff.Read(OpenPictureDialog1.FileName);
tiff.Params[0].TIFF_Compression := ioTIFF_G3FAX1D;
tiff.Params[0].BitsPerSample := 1;
tiff.Params[0].SamplesPerPixel := 1;
if tiff.ImageWidth[0] <> FAX_WIDTH then
tiff.ResampleAll(FAX_WIDTH, tiff.ImageHeight[0], TResampleFilter.rfProjectBW);
tiff.DuplicateCompressionInfo;
tiff.Write(OpenPictureDialog1.FileName + '-new.tiff');
finally
tiff.Free;
end;
|
|
|
xequte
38616 Posts |
Posted - Oct 28 2020 : 22:34:12
|
Yes, DuplicateCompressionInfo sets the following properties:
// General BitsPerSample SamplesPerPixel
// TIFF TIFF_Compression TIFF_PhotometInterpret TIFF_PlanarConf TIFF_Orientation TIFF_LZWDecompFunc TIFF_LZWCompFunc TIFF_EnableAdjustOrientation TIFF_JPEGQuality TIFF_JPEGColorSpace TIFF_FillOrder TIFF_ZIPCompression TIFF_StripCount TIFF_Normalize32fImages
// GIF GIF_Interlaced GIF_LZWDecompFunc GIF_LZWCompFunc
// JPEG JPEG_ColorSpace JPEG_Quality JPEG_DCTMethod JPEG_CromaSubsampling JPEG_OptimalHuffman JPEG_Smooth JPEG_Progressive
// JPEG2000 J2000_ColorSpace J2000_Rate J2000_ScalableBy J2000_SubSamplingH J2000_SubSamplingV J2000_Reduce J2000_Quality
// PCX PCX_Version PCX_Compression
// BMP BMP_Version BMP_Compression BMP_HandleTransparency
// ICO ICO_Format
// PNG PNG_Interlaced PNG_Filter PNG_Compression
// TGA TGA_Compressed TGA_GrayLevel
// PS PS_Compression
// PDF PDF_Compression
// DICOM DICOM_Range DICOM_Compression DICOM_JPEGQuality DICOM_J2000Rate
Nigel Xequte Software www.imageen.com
|
|
|
|
Topic |
|