Attachment 9429 Details for Bug 20057 – Functionality tests using libtiff utilities

Functionality tests using libtiff utilities

tifftests (text/plain), 5.66 KB, created by Len Lawrence on 2017-06-19 16:51:33 CEST

(hide)

Description:

Filename:

MIME Type:

Creator: Len Lawrence

Created: 2017-06-19 16:51:33 CEST

Size: 5.66 KB

patch

obsolete

>$ pnmtotiff Ikapati.pgm -output test.pnm
>$ display test.pnm
># Perfect image of Ikapati region on Ceres
>
>$ pnmtotiff mandrill.pgm -output test.pnm
># Image of a mandrill
>
>$ pnmtotiff Ikapati.pgm -output test.pnm
>$ display test.pnm
># Image of a mandrill
># Right-click on image and select Next
># Image of Ikapati region, frame 2
># Some of these utilities treat -output file as a stream and append frames.
>
>$ pnmtotiffcmyk -negative mandrill.pgm > cmyk.pnm
># Expected a negative image of mandrill but saw a copy.
># No better with a coloured image.
>$ tifftopnm lena_color.tiff > lena.pnm
>tifftopnm: writing PPM file
>$ display lena.pnm
># As good as the original
>$ pnmtotiffcmyk -gamma 2.4 lena.pnm > cmyk.pnm
># This completely skewed the colours, making it look like a negative,
># probably what is expected.
>
>$ tiffgt SantaMaria.tif
># Displays a greyscale image with coloured annotations.
>
>$ tiffcp bridge.tif newbridge.tif
># They look the same but have slightly different sizes.
>$ ls -l *bridge*
>-rw-r--r-- 1 lcl lcl 262393 Nov 16  2016 bridge.tif
>-rw-r--r-- 1 lcl lcl 262649 Jun 19 11:50 newbridge.tif
>
>$ ppm2tiff lena.pnm lena_from_ppm.tif
># Used tiffgt to confirm the copy.
>
>$ PTtiff2psd -f *.tiff
># force option used because files do not all have the same width.
># The utility tried to build a Photoshop document but had to abort.
>$ PTtiff2psd lena*.ti*
>PTtiff2psd Version 2.9.19 , based on code by Helmut Dersch, rewritten by Daniel M German and Jim Watters
>Image 0 and 2 do not have the same colour depth
>TIFFs are not compatible. Use -f to force processing
>$ PTtiff2psd -f lena*.ti*
>PTtiff2psd Version 2.9.19 , based on code by Helmut Dersch, rewritten by Daniel M German and Jim Watters
>Creating output file merged.psd          
>Converting TIFF to PSD       66%We only support 3 or 4 samples per pixel
>Could not read TIFF image No &d
>Error while creating PSD file
>$ ls -l merged.psd
>-rw-r--r-- 1 lcl lcl 2621856 Jun 19 11:32 merged.psd
>No way to look at this without Windows or PhotoShop.
>
>$ PTtiffdump lena.tif lena_from_ppm.tif > filedump
>[lcl@vega images]$ cat filedump
>PTuncrop Version 2.9.19 , by Daniel M German
>We only support 3 or 4 samples per pixel
>Unable to open input file
>$ PTtiffdump macbeth_rgba.tif macbeth_rgb.tif 
>PTuncrop Version 2.9.19 , by Daniel M German
>Comparing 850 1159 pixels
>    0,   0,r, 15 ff, B
>    0,   0,g, 21 ff, B
>    0,   0,b, 20 ff, B
>    0,   1,g, 21 ff, B
>    0,   1,b, 1b 14, A
>    0,   2,b, 1b ff, B
>Compared 985150 pixels 1 above 5 below 
>Percent of different values 0.000
>
>Skipped raw2tiff.  No raw data file.
>
>$ tiff2bw macbeth_rgb.tif macbeth_bw.tif
>$ tiffgt macbeth_bw.tif 
>libGL error: No matching fbConfigs or visuals found
>libGL error: failed to load driver: swrast
>libGL error: No matching fbConfigs or visuals found
>libGL error: failed to load driver: i965
>libGL error: No matching fbConfigs or visuals found
>libGL error: failed to load driver: swrast
># These errors can be ignored - I see them routinely.
># The image looked fine - greyscale conversion.
>
>$ tiff2pdf boats.tif > boats.pdf
>$ xpdf boats.pdf
># Looks perfect.
>
>$ tiff2ps lena.tif > lena.ps
>$ gs lena.ps
># Displayed the greyscale image with bottom lefthand corner at [0,0] on a
># Postscript page.
>
>$ tiffcrop -E top -U px -m 100,100,100,100 SantaMaria.tif cropped.tif
>_TIFFVGetField: cropped.tif: Invalid tag "BadFaxLines" (not supported by codec).
>_TIFFVGetField: cropped.tif: Invalid tag "BadFaxLines" (not supported by codec).
># The cropped image was a copy of the original with a  100-pixel-wide border removed.
># This utility can also be used to flip or rotate the cropped image.
>
>$ tiffdither airfield.tif dithered.tif
>The two-level dither pattern was quite evident in the resulting image.
>
>$ tiffdump SantaMaria.tif > dumpfile
>$ cat dumpfile
>SantaMaria.tif:
>Magic: 0x4949 <little-endian> Version: 0x2a <ClassicTIFF>
>Directory 0: offset 1971016 (0x1e1348) next 0 (0)
>ImageWidth (256) SHORT (3) 1<1638>
>ImageLength (257) SHORT (3) 1<1410>
>........................................
>ResolutionUnit (296) SHORT (3) 1<2>
>PageNumber (297) SHORT (3) 2<0 1>
>Predictor (317) SHORT (3) 1<2>
>Whitepoint (318) RATIONAL (5) 2<0.3127 0.329>
>PrimaryChromaticities (319) RATIONAL (5) 6<0.64 0.33 0.3 0.6 0.15 0.06>
>BadFaxLines (326) LONG (4) 1<2707030018>
>
>$ tiffinfo einstein.tif
>TIFF Directory at offset 0x10008 (65544)
>  Image Width: 256 Image Length: 256
>  Resolution: 1200, 1200 pixels/inch
>  Bits/Sample: 8
>  Compression Scheme: None
>  Photometric Interpretation: min-is-black
>  Orientation: row 0 top, col 0 lhs
>  Samples/Pixel: 1
>  Rows/Strip: 256
>  Planar Configuration: single image plane
>  ImageDescription: MatLab PGMWRITE file, saved 27-Aug-96
>
>$ tiffmedian example2.tiff median.tif
>This quantizes the colour range within an image.
>Colour averaging evident in the resulting image.
>
># tiffset may be used to directly alter the properties of a tiff image in situ. 
># The -s parameter specifies the "tag" (attribute number).  Tag values can be 
># examined via the tiffdump command.
># In this experiment the Y and X resolutions were changed from the original
># 495.063 to 300 and the image looked OK.  The tags were set to the new values.
>$ tiffset -s 283 300.0 craters.tif
>_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
>_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
>$ tiffset -s 282 300.0 craters.tif
>_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
>_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
># Those error messages are also a familiar sight and can probably be ignored.
>
>$ tiffsplit greycombo.tif
># This split the original image into {xaaa,xaab,xaac,xaad}.tif each of which
># were faithful copies of the frames stacked in the source image.
>

$ pnmtotiff Ikapati.pgm -output test.pnm
$ display test.pnm
# Perfect image of Ikapati region on Ceres

$ pnmtotiff mandrill.pgm -output test.pnm
# Image of a mandrill

$ pnmtotiff Ikapati.pgm -output test.pnm
$ display test.pnm
# Image of a mandrill
# Right-click on image and select Next
# Image of Ikapati region, frame 2
# Some of these utilities treat -output file as a stream and append frames.

$ pnmtotiffcmyk -negative mandrill.pgm > cmyk.pnm
# Expected a negative image of mandrill but saw a copy.
# No better with a coloured image.
$ tifftopnm lena_color.tiff > lena.pnm
tifftopnm: writing PPM file
$ display lena.pnm
# As good as the original
$ pnmtotiffcmyk -gamma 2.4 lena.pnm > cmyk.pnm
# This completely skewed the colours, making it look like a negative,
# probably what is expected.

$ tiffgt SantaMaria.tif
# Displays a greyscale image with coloured annotations.

$ tiffcp bridge.tif newbridge.tif
# They look the same but have slightly different sizes.
$ ls -l *bridge*
-rw-r--r-- 1 lcl lcl 262393 Nov 16  2016 bridge.tif
-rw-r--r-- 1 lcl lcl 262649 Jun 19 11:50 newbridge.tif

$ ppm2tiff lena.pnm lena_from_ppm.tif
# Used tiffgt to confirm the copy.

$ PTtiff2psd -f *.tiff
# force option used because files do not all have the same width.
# The utility tried to build a Photoshop document but had to abort.
$ PTtiff2psd lena*.ti*
PTtiff2psd Version 2.9.19 , based on code by Helmut Dersch, rewritten by Daniel M German and Jim Watters
Image 0 and 2 do not have the same colour depth
TIFFs are not compatible. Use -f to force processing
$ PTtiff2psd -f lena*.ti*
PTtiff2psd Version 2.9.19 , based on code by Helmut Dersch, rewritten by Daniel M German and Jim Watters
Creating output file merged.psd          
Converting TIFF to PSD       66%We only support 3 or 4 samples per pixel
Could not read TIFF image No &d
Error while creating PSD file
$ ls -l merged.psd
-rw-r--r-- 1 lcl lcl 2621856 Jun 19 11:32 merged.psd
No way to look at this without Windows or PhotoShop.

$ PTtiffdump lena.tif lena_from_ppm.tif > filedump
[lcl@vega images]$ cat filedump
PTuncrop Version 2.9.19 , by Daniel M German
We only support 3 or 4 samples per pixel
Unable to open input file
$ PTtiffdump macbeth_rgba.tif macbeth_rgb.tif 
PTuncrop Version 2.9.19 , by Daniel M German
Comparing 850 1159 pixels
    0,   0,r, 15 ff, B
    0,   0,g, 21 ff, B
    0,   0,b, 20 ff, B
    0,   1,g, 21 ff, B
    0,   1,b, 1b 14, A
    0,   2,b, 1b ff, B
Compared 985150 pixels 1 above 5 below 
Percent of different values 0.000

Skipped raw2tiff.  No raw data file.

$ tiff2bw macbeth_rgb.tif macbeth_bw.tif
$ tiffgt macbeth_bw.tif 
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: i965
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
# These errors can be ignored - I see them routinely.
# The image looked fine - greyscale conversion.

$ tiff2pdf boats.tif > boats.pdf
$ xpdf boats.pdf
# Looks perfect.

$ tiff2ps lena.tif > lena.ps
$ gs lena.ps
# Displayed the greyscale image with bottom lefthand corner at [0,0] on a
# Postscript page.

$ tiffcrop -E top -U px -m 100,100,100,100 SantaMaria.tif cropped.tif
_TIFFVGetField: cropped.tif: Invalid tag "BadFaxLines" (not supported by codec).
_TIFFVGetField: cropped.tif: Invalid tag "BadFaxLines" (not supported by codec).
# The cropped image was a copy of the original with a  100-pixel-wide border removed.
# This utility can also be used to flip or rotate the cropped image.

$ tiffdither airfield.tif dithered.tif
The two-level dither pattern was quite evident in the resulting image.

$ tiffdump SantaMaria.tif > dumpfile
$ cat dumpfile
SantaMaria.tif:
Magic: 0x4949 <little-endian> Version: 0x2a <ClassicTIFF>
Directory 0: offset 1971016 (0x1e1348) next 0 (0)
ImageWidth (256) SHORT (3) 1<1638>
ImageLength (257) SHORT (3) 1<1410>
........................................
ResolutionUnit (296) SHORT (3) 1<2>
PageNumber (297) SHORT (3) 2<0 1>
Predictor (317) SHORT (3) 1<2>
Whitepoint (318) RATIONAL (5) 2<0.3127 0.329>
PrimaryChromaticities (319) RATIONAL (5) 6<0.64 0.33 0.3 0.6 0.15 0.06>
BadFaxLines (326) LONG (4) 1<2707030018>

$ tiffinfo einstein.tif
TIFF Directory at offset 0x10008 (65544)
  Image Width: 256 Image Length: 256
  Resolution: 1200, 1200 pixels/inch
  Bits/Sample: 8
  Compression Scheme: None
  Photometric Interpretation: min-is-black
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 1
  Rows/Strip: 256
  Planar Configuration: single image plane
  ImageDescription: MatLab PGMWRITE file, saved 27-Aug-96

$ tiffmedian example2.tiff median.tif
This quantizes the colour range within an image.
Colour averaging evident in the resulting image.

# tiffset may be used to directly alter the properties of a tiff image in situ. 
# The -s parameter specifies the "tag" (attribute number).  Tag values can be 
# examined via the tiffdump command.
# In this experiment the Y and X resolutions were changed from the original
# 495.063 to 300 and the image looked OK.  The tags were set to the new values.
$ tiffset -s 283 300.0 craters.tif
_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
$ tiffset -s 282 300.0 craters.tif
_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
_TIFFVGetField: craters.tif: Invalid tag "BadFaxLines" (not supported by codec).
# Those error messages are also a familiar sight and can probably be ignored.

$ tiffsplit greycombo.tif
# This split the original image into {xaaa,xaab,xaac,xaad}.tif each of which
# were faithful copies of the frames stacked in the source image.

Actions: View

Attachments on bug 20057: 9422 | 9423 | 9424 | 9425 | 9427 | 9429