Questions[libtiff](ubuntu)

I have a lot of (20,000) TIFF images. How can I create a lossless video out of them in one of common video formats (e.g. mp4, AVI) using FFMPEG or any other tools?

I am not sure what was the framerate and it could have been variable. The capture has been done in 133MHZ but it had variable framerate.

I tried the following command on a sample of 350ish TIFF image but I am not sure how to check if the produced video is lossy or lossless. How could I check that?

$ ffmpeg -framerate 60 -i 'frame%04d.tiff'  vid.mp4

I am trying to install my Canon MP280 printer to my recently upgraded Ubuntu focal 20.04. This printer worked out-of-the-box with Ubuntu 18.04 on same hardware (HP Folio 1040), so I am surprised to find it does not work quite so well.

I've tried two paths:

1. system-config-printer: This leads me to either install a generic text-only driver, or a list of non-matching Canon printers. Either way I cannot actually print anything.

2. install proprietary driver as described here. This ultimately fails due to a dependency to an arcane version of libtiff4 whereas libtiff5 is the only available on 20.04.

Did Ubuntu leave my printer behind?

I got datasets from Cell Tracking Challenge for deep learning task, but tif images (label images) are showing complete black. Geeqie, Gnome image viewer, and Shutter have been tried.

My configuration is:

Ubuntu 18.04
Nvidia Driver 430  
libtiff.so.5.3.0

identify -verbose man_seg002.tif gives:

Image: man_seg002.tif
  Format: TIFF (Tagged Image File Format)
  Mime type: image/tiff
  Class: DirectClass
  Geometry: 512x512+0+0
  Resolution: 52631.8x52631.8
  Print size: 0.00972795x0.00972795
  Units: PixelsPerCentimeter
  Type: Grayscale
  Base type: Grayscale
  Endianess: LSB
  Colorspace: Gray
  Depth: 16-bit
  Channel depth:
    gray: 16-bit
  Channel statistics:
    Pixels: 262144
    Gray:
      min: 0 (0)
      max: 10 (0.00015259)
      mean: 1.94572 (2.96899e-05)
      standard deviation: 2.96685 (4.52713e-05)
      kurtosis: 0.326432
      skewness: 1.30041
      entropy: 0.646021
  Colors: 11
  Histogram:
    160474: (    0,    0,    0) #000000000000 gray(0)
     11764: (    1,    1,    1) #000100010001 gray(0%)
     11548: (    2,    2,    2) #000200020002 gray(0%)
     11724: (    3,    3,    3) #000300030003 gray(0%)
      9411: (    4,    4,    4) #000400040004 gray(0%)
     13268: (    5,    5,    5) #000500050005 gray(0%)
     13211: (    6,    6,    6) #000600060006 gray(0%)
      8112: (    7,    7,    7) #000700070007 gray(0%)
      9023: (    8,    8,    8) #000800080008 gray(0%)
      8280: (    9,    9,    9) #000900090009 gray(0%)
      5329: (   10,   10,   10) #000A000A000A gray(0%)
  Rendering intent: Undefined
  Gamma: 0.454545
  Background color: gray(255)
  Border color: gray(223)
  Matte color: gray(189)
  Transparent color: gray(0)
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 512x512+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: LZW
  Orientation: TopLeft
  Properties:
    date:create: 2019-09-22T10:10:54+08:00
    date:modify: 2013-11-16T07:41:22+08:00
    signature: 20c7b0ccb92bfd0b783d88426b9955ac7ddb3e25b626fd3b22927cdcecd15788
    tiff:alpha: unspecified
    tiff:endian: lsb
    tiff:photometric: min-is-black
    tiff:rows-per-strip: 8
  Artifacts:
    filename: man_seg002.tif
    verbose: true
  Tainted: False
  Filesize: 21.7KB
  Number pixels: 262K
  Pixels per second: 26.21MB
  User time: 0.010u
  Elapsed time: 0:01.010
  Version: ImageMagick 6.9.7-4 Q16 x86_64 20170114 http://www.imagemagick.org

I have recently installed Ubuntu-19.04. I saved the the most important data from Ubuntu-18.04 as an enormous .tar file as I had some broken files on my 18.04 and transferred everything to the new 19.04 so that I had the same exact layout/folders/data I had before. In this process of course some libraries/dependencies were lost and had to reinstall them.

On my computer I have CMake 3.13.4 from official documentation,Qt5 installed from official documentation,OpenCV 3.4.4 installed from here.

Almost all libraries and dependencies are restored, however I get the last three errors after launching CMake and Qt5:

/usr/bin/ld: ../../lib/liblibCam.so: undefined reference to TIFFOpen

/usr/bin/ld: ../../lib/liblibCam.so: undefined reference to TIFFClose

/usr/bin/ld: ../../lib/liblibCam.so: undefined reference to TIFFGetField collect2: error: ld returned 1 exit status

I am not sure if this compilation error is due to OpenCV. I installed fresh the following libraries: libtiff5 and libtiff5-dev but still the problem remains. Any idea why is not compiling successfully?

I need to convert incoming TIFFs to PDFs in scripting, so I've tested tiff2pdf. I have actual (4.0.6) version of LIBTIFF, installed with apt. It did well with some samples produced by scanner, but it failed with examples from this page.

The PDF was generated, but the pages are empty when viewed with ImageMagic or Print Preview under Ubuntu, on Acrobat (in Windows) it shows erros that the PDF is invalid.

Is there a bug in current LIBTIFF considering multipage tiffs? Unfortunately the 'Official' bugzilla is down, and I've found no reference where is the actual version... Or those examples are somehow 'non-realistic' and I should expect no scanner to produce them?