Here's the output of scanimage. Did I mention that the preview is
perfect? The issue is the output to PDF.
br-y' => '279'
},
{
'mode' => 'Lineart'
},
{
'resolution' => '200'
}
],
'genesys:libusb:006:005' => [
{
'br-y' => '279'
},
{
'resolution' => '150'
}
],
'genesys:libusb:006:004' => [
{
'mode' => 'Color'
},
{
'br-x' =>
'215.899993896484'
},
{
'br-y' => '279'
},
{
'clear-calibration' =>
undef
}
]
},
'window_height' => '690',
'rotate reverse' => '0',
'Dark threshold' => '0.12',
'pages to scan' => '1',
'resolution' => '300',
'Blank threshold' => '0.005',
'unpaper on scan' => '1',
'libsane-perl version' => '0.03',
'x' => '215.9',
'downsample dpi' => '150',
'window_width' => '1024',
'deskew-scan-direction' => 'left,top',
'threshold tool' => '70',
'unsharp sigma' => '1',
'thumb panel' => '155',
'border-align' => 'left,top',
'unsharp threshold' => '0.05',
'l' => '0',
'SANE version' => '1.0.21',
'no-mask-scan' => '1',
'downsample' => '',
'restore window' => '1',
'batch-scan' => 'no',
'pdf compression' => 'none'
};
Found Image::Magick
Found ImageMagick
Found scanadf
Found xdg-email
Found gocr
Found tesseract
Found cuneiform
Found cjb2 (djvu)
Found unpaper
Found libtiff
Using /tmp/LsUJLwCuEq for temporary files
Using tessdata at /usr/share/tesseract-ocr/tessdata
cuneiform -l
Cuneiform for Linux 0.7.0
Supported languages: eng ger fra rus swe spa ita ruseng ukr srp hrv pol dan por
dut cze rum hun bul slo lav lit est tur.
scanimage --formatted-device-list="'%i','%d','%v %m'
" 2>/dev/null
Forked PID 8081
Waiting to reap process at /usr/bin/gscan2pdf line 4990.
Reaped PID -1
'0','genesys:libusb:006:002','Hewlett Packard ScanJet 2300c'
$VAR1 = {
'source' => {
'tip' => 'Selects the scan source (such as a
document-feeder).',
'default' => 'Flatbed',
'values' => [
'Flatbed'
]
},
'mode' => {
'tip' => 'Selects the scan mode (e.g., lineart,
monochrome, or color).',
'default' => 'Lineart',
'values' => [
'Color',
'Gray',
'Lineart'
]
},
'extend-lamp-timeout' => {
'tip' => 'Extends lamp timeout (from 15
minutes to 1 hour)',
'default' => 'no',
'values' => [
'yes',
'no'
]
},
'x' => {
'tip' => 'Width of scan-area.',
'step' => '0.0999908',
'unit' => 'mm',
'min' => '0',
'max' => '215.889',
'default' => '215.889'
},
'l' => {
'tip' => 'Top-left x position of scan area.',
'step' => '0.0999908',
'unit' => 'mm',
'min' => '0',
'max' => '215.889',
'default' => '0'
},
'y' => {
'tip' => 'Height of scan-area.',
'step' => '0.0999908',
'unit' => 'mm',
'min' => '0',
'max' => '297.699',
'default' => '297.699'
},
'preview' => {
'tip' => 'Request a preview-quality scan.',
'default' => 'no',
'values' => [
'yes',
'no'
]
},
'resolution' => {
'tip' => 'Sets the resolution of the scanned
image.',
'unit' => 'dpi',
'default' => '100',
'values' => [
'100',
'200',
'300',
'600',
'1200',
'2400'
]
},
't' => {
'tip' => 'Top-left y position of scan area.',
'step' => '0.0999908',
'unit' => 'mm',
'min' => '0',
'max' => '297.699',
'default' => '0'
},
'wait-for-button' => {
'tip' => 'Waits for button before scanning',
'default' => 'no',
'values' => [
'yes',
'no'
]
}
};
scanimage --help --device-name='genesys:libusb:006:002' --mode='Gray'
Forked PID 8084
Waiting to reap process at /usr/bin/gscan2pdf line 8024.
Reaped PID -1
Usage: scanimage [OPTION]...
Start image acquisition on a scanner device and write image data to
standard output.
Parameters are separated by a blank from single-character options (e.g.
-d epson) and by a "=" from multi-character options (e.g. --device-name=epson).
-d, --device-name=DEVICE use a given scanner device (e.g. hp:/dev/scanner)
--format=pnm|tiff file format of output file
-i, --icc-profile=PROFILE include this ICC profile into TIFF file
-L, --list-devices show available scanner devices
-f, --formatted-device-list=FORMAT similar to -L, but the FORMAT of the output
can be specified: %d (device name), %v (vendor),
%m (model), %t (type), %i (index number), and
%n (newline)
-b, --batch[=FORMAT] working in batch mode, FORMAT is `out%d.pnm' or
`out%d.tif' by default depending on --format
--batch-start=# page number to start naming files with
--batch-count=# how many pages to scan in batch mode
--batch-increment=# increase page number in filename by #
--batch-double increment page number by two, same as
--batch-increment=2
--batch-prompt ask for pressing a key before scanning a page
--accept-md5-only only accept authorization requests using md5
-p, --progress print progress messages
-n, --dont-scan only set options, don't actually scan
-T, --test test backend thoroughly
-h, --help display this help message and exit
-v, --verbose give even more status messages
-B, --buffer-size=# change input buffer size (in kB, default 32)
-V, --version print version information
Options specific to device `genesys:libusb:006:002':
Scan Mode:
--mode Color|Gray|Lineart [Gray]
Selects the scan mode (e.g., lineart, monochrome, or color).
--source Flatbed|Transparency Adapter [inactive]
Selects the scan source (such as a document-feeder).
--preview[=(yes|no)] [no]
Request a preview-quality scan.
--depth 8|16 [8]
Number of bits per sample, typical values are 1 for "line-art" and 8
for multibit scans.
--resolution 1200|600|300|150|75dpi [300]
Sets the resolution of the scanned image.
Geometry:
-l 0..215.9mm [0]
Top-left x position of scan area.
-t 0..295mm [0]
Top-left y position of scan area.
-x 0..215.9mm [215.9]
Width of scan-area.
-y 0..295mm [295]
Height of scan-area.
Enhancement:
--custom-gamma[=(yes|no)] [no]
Determines whether a builtin or a custom gamma-table should be used.
--gamma-table 0..16383,... [inactive]
Gamma-correction table. In color mode this option equally affects the
red, green, and blue channels simultaneously (i.e., it is an intensity
gamma table).
--red-gamma-table 0..16383,... [inactive]
Gamma-correction table for the red band.
--green-gamma-table 0..16383,... [inactive]
Gamma-correction table for the green band.
--blue-gamma-table 0..16383,... [inactive]
Gamma-correction table for the blue band.
Extras:
--lamp-off-time 0..60 [15]
The lamp will be turned off after the given time (in minutes). A value
of 0 means, that the lamp won't be turned off.
--threshold 0..100% (in steps of 1) [inactive]
Select minimum-brightness to get a white point
--threshold-curve 0..127 (in steps of 1) [inactive]
Dynamic threshold curve, from light to dark, normally 50-65
--disable-dynamic-lineart[=(yes|no)] [inactive]
Disabel use of a software adaptative algorithm to generate lineart
instead of relying on hardware lineart
--disable-interpolation[=(yes|no)] [no]
When using high resolutions where the horizontal resolution is smaller
than the vertical resolution this disables horizontal interpolation.
--color-filter Red|Green|Blue [Green]
When using gray or lineart this option selects the used color.
Sensors:
--scan[=(yes|no)] [no] [hardware]
Scan button
--copy[=(yes|no)] [no] [hardware]
Copy button
Buttons:
--clear-calibration []
Clear calibration cache
Type ``scanimage --help -d DEVICE'' to get list of all options for
DEVICE.
List of available devices:
genesys:libusb:006:002
$VAR1 = {
'source' => {
'tip' => 'Selects the scan source (such as a
document-feeder).',
'default' => 'inactive',
'values' => [
'Flatbed',
'Transparency Adapter'
]
},
'gamma-table' => {
'tip' => 'Gamma-correction table. In color mode
this option equally affects the red, green, and blue channels simultaneously
(i.e., it is an intensity gamma table).',
'min' => '0',
'max' => '16383',
'default' => 'inactive'
},
'lamp-off-time' => {
'tip' => 'The lamp will be turned off after the
given time (in minutes). A value of 0 means, that the lamp won\'t be turned
off.',
'min' => '0',
'max' => '60',
'default' => '15'
},
'clear-calibration' => {
'tip' => 'Clear calibration cache',
'default' => ''
},
'threshold' => {
'tip' => 'Select minimum-brightness to get a white
point',
'step' => '1',
'unit' => '%',
'min' => '0',
'max' => '100',
'default' => 'inactive'
},
'disable-dynamic-lineart' => {
'tip' => 'Disabel use of a software
adaptative algorithm to generate lineart instead of relying on hardware
lineart',
'default' => 'inactive',
'values' => [
'yes',
'no'
]
},
'mode' => {
'tip' => 'Selects the scan mode (e.g., lineart,
monochrome, or color).',
'default' => 'Gray',
'values' => [
'Color',
'Gray',
'Lineart'
]
},
'red-gamma-table' => {
'tip' => 'Gamma-correction table for the red
band.',
'min' => '0',
'max' => '16383',
'default' => 'inactive'
},
'green-gamma-table' => {
'tip' => 'Gamma-correction table for the
green band.',
'min' => '0',
'max' => '16383',
'default' => 'inactive'
},
'x' => {
'tip' => 'Width of scan-area.',
'unit' => 'mm',
'min' => '0',
'max' => '215.9',
'default' => '215.9'
},
'custom-gamma' => {
'tip' => 'Determines whether a builtin or a
custom gamma-table should be used.',
'default' => 'no',
'values' => [
'yes',
'no'
]
},
'y' => {
'tip' => 'Height of scan-area.',
'unit' => 'mm',
'min' => '0',
'max' => '295',
'default' => '295'
},
'copy' => {
'tip' => 'Copy button',
'default' => 'hardware',
'values' => [
'yes',
'no'
]
},
'color-filter' => {
'tip' => 'When using gray or lineart this option
selects the used color.',
'default' => 'Green',
'values' => [
'Red',
'Green',
'Blue'
]
},
't' => {
'tip' => 'Top-left y position of scan area.',
'unit' => 'mm',
'min' => '0',
'max' => '295',
'default' => '0'
},
'blue-gamma-table' => {
'tip' => 'Gamma-correction table for the blue
band.',
'min' => '0',
'max' => '16383',
'default' => 'inactive'
},
'depth' => {
'tip' => 'Number of bits per sample, typical values are
1 for "line-art" and 8 for multibit scans.',
'default' => '8',
'values' => [
'8',
'16'
]
},
'disable-interpolation' => {
'tip' => 'When using high resolutions
where the horizontal resolution is smaller than the vertical resolution this
disables horizontal interpolation.',
'default' => 'no',
'values' => [
'yes',
'no'
]
},
'l' => {
'tip' => 'Top-left x position of scan area.',
'unit' => 'mm',
'min' => '0',
'max' => '215.9',
'default' => '0'
},
'scan' => {
'tip' => 'Scan button',
'default' => 'hardware',
'values' => [
'yes',
'no'
]
},
'preview' => {
'tip' => 'Request a preview-quality scan.',
'default' => 'no',
'values' => [
'yes',
'no'
]
},
'threshold-curve' => {
'tip' => 'Dynamic threshold curve, from light
to dark, normally 50-65',
'step' => '1',
'min' => '0',
'max' => '127',
'default' => 'inactive'
},
'resolution' => {
'tip' => 'Sets the resolution of the scanned
image.',
'unit' => 'dpi',
'default' => '300',
'values' => [
'1200',
'600',
'300',
'150',
'75'
]
}
};
$VAR1 = [];
$VAR1 = {
'l' => '0',
'y' => '279',
'Paper size' => 'US Letter',
'mode' => 'Gray',
'resolution' => '300',
'x' => '215.889',
't' => '0'
};
rotate facing 0
rotate reverse 0
non-duplex mode
rotate_facing 0
rotate_reverse 0
unpaper 1
OCR
scanimage --device-name='genesys:libusb:006:002' --mode='Gray' -y 279 -l 0
--resolution='300' -x 215.889 -t 0 --batch --progress --batch-count=1
Forked PID 8088
Scanning 1 pages, incrementing by 1, numbering from 1
Scanning page 1
Scanned page 1. (scanner status = 5)
Format is P5
Header is 37
Header suggests 8398992
Expecting 8398992, found 8398992
Importing out1.pnm, format Portable anymap
Added /tmp/LsUJLwCuEq/SOmLsJa3cj.pnm at page 1 with resolution 300
Waiting to reap process at /usr/bin/gscan2pdf line 6162.
Reaped PID 8088
unpaper --no-blackfilter --border-align left,top --output-pages 1
--no-blurfilter --no-noisefilter --white-threshold 0.9 --layout single
--no-mask-scan --no-grayfilter --black-threshold 0.33 --deskew-scan-direction
left,top --overwrite --input-file-sequence /tmp/LsUJLwCuEq/SOmLsJa3cj.pnm
--output-file-sequence /tmp/LsUJLwCuEq/mwTmeIAae5.pnm ;
Forked PID 8090
Processing sheet: /tmp/LsUJLwCuEq/SOmLsJa3cj.pnm ->
/tmp/LsUJLwCuEq/mwTmeIAae5.pnm
Waiting to reap process at /usr/bin/gscan2pdf line 10566.
Reaped PID -1
Forked PID 8097
Defining page at 611.76pt x 790.8pt
Adding /tmp/LsUJLwCuEq/mwTmeIAae5.pnm at 300 dpi
Process 8097 exited.
Exiting via sane_exit
--
PDF is split in grayscale
https://bugs.launchpad.net/bugs/619187
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