I have a scanner Epson V600. Installed `iscan`, `iscan-data` and `iscan-plugin-gt-x820`.
--- $ scanimage -h -d 'epkowa:interpreter:003:020' 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|png|jpeg 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' `out%d.tif' `out%d.png' or `out%d.jpg' 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-print print image filenames to stdout --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 -A, --all-options list all available backend options -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 `epkowa:interpreter:003:020': Scan Mode: --mode Binary|Gray|Color [Color] Selects the scan mode (e.g., lineart, monochrome, or color). --depth 8|16 [8] Number of bits per sample, typical values are 1 for "line-art" and 8 for multibit scans. --halftoning None|Halftone A (Hard Tone)|Halftone B (Soft Tone)|Halftone C (Net Screen) [inactive] Selects the halftone. --dropout None|Red|Green|Blue [inactive] Selects the dropout. --brightness-method iscan|gimp [iscan] Selects a method to change the brightness of the acquired image. --brightness -100..100 (in steps of 1) [0] Controls the brightness of the acquired image. --contrast -100..100 (in steps of 1) [0] Controls the contrast of the acquired image. --sharpness -2..2 [inactive] --gamma-correction User defined (Gamma=1.0)|User defined (Gamma=1.8) [User defined (Gamma=1.8)] Selects the gamma correction value from a list of pre-defined devices or the user defined table, which can be downloaded to the scanner --color-correction User defined [inactive] Sets the color correction table for the selected output device. --resolution 400|800|1600|3200dpi [400] Sets the resolution of the scanned image. --x-resolution 200|400|600|800|1200|1600|3200|6400dpi [200] Sets the horizontal resolution of the scanned image. --y-resolution 200|240|320|400|600|800|1200|1600|3200|4800|6400dpi [320] Sets the vertical resolution of the scanned image. --threshold 0..255 [inactive] Select minimum-brightness to get a white point Advanced: --mirror[=(yes|no)] [inactive] Mirror the image. --speed[=(yes|no)] [no] Determines the speed at which the scan proceeds. --auto-area-segmentation[=(yes|no)] [inactive] --short-resolution[=(yes|no)] [no] Display short resolution list --zoom 50..200 [inactive] Defines the zoom factor the scanner will use --red-gamma-table 0..255,... Gamma-correction table for the red band. --green-gamma-table 0..255,... Gamma-correction table for the green band. --blue-gamma-table 0..255,... Gamma-correction table for the blue band. --wait-for-button[=(yes|no)] [no] After sending the scan command, wait until the button on the scanner is pressed to actually start the scan process. Color correction coefficients: --cct-1 -2..2 [1.2578] Controls red level --cct-2 -2..2 [-0.213989] Adds to red based on green level --cct-3 -2..2 [-0.0437927] Adds to red based on blue level --cct-4 -2..2 [-0.193893] Adds to green based on red level --cct-5 -2..2 [1.2856] Controls green level --cct-6 -2..2 [-0.0916901] Adds to green based on blue level --cct-7 -2..2 [-0.0257874] Adds to blue based on red level --cct-8 -2..2 [-0.264191] Adds to blue based on green level --cct-9 -2..2 [1.28999] Control blue level Preview: --preview[=(yes|no)] [no] Request a preview-quality scan. --preview-speed[=(yes|no)] [no] Geometry: --scan-area Maximum|A4|A5 Landscape|A5 Portrait|B5|Letter|Executive|CD [Maximum] Select an area to scan based on well-known media sizes. -l 0..215.9mm [0] Top-left x position of scan area. -t 0..297.18mm [0] Top-left y position of scan area. -x 0..215.9mm [215.9] Width of scan-area. -y 0..297.18mm [297.18] Height of scan-area. --quick-format Maximum|A4|A5 Landscape|A5 Portrait|B5|Letter|Executive|CD [Maximum] Select an area to scan based on well-known media sizes. (DEPRECATED) Optional equipment: --source Flatbed|Transparency Unit [Flatbed] Selects the scan source (such as a document-feeder). --auto-eject[=(yes|no)] [inactive] Eject document after scanning --film-type Positive Film|Negative Film [inactive] --focus-position Focus on glass|Focus 2.5mm above glass [inactive] Sets the focus position to either the glass or 2.5mm above the glass --bay 1 | 2 | 3 | 4 | 5 | 6 [inactive] Select bay to scan --eject [inactive] Eject the sheet in the ADF --adf-mode Simplex|Duplex [inactive] Selects the ADF mode (simplex/duplex) --detect-doc-size[=(yes|no)] [inactive] Activates document size auto-detection. The scan area will be set to match the detected document size. --adf-auto-scan[=(yes|no)] [inactive] Skips per sheet device setup for faster throughput. --double-feed-detection-sensitivity None|Low|High [inactive] Sets the sensitivity with which multi-sheet page feeds are detected and reported as errors. --deskew[=(yes|no)] [inactive] Rotate image so it appears upright. --autocrop[=(yes|no)] [inactive] Determines empty margins in the scanned image and removes them. This normally reduces the image to the size of the original document but may remove more. --calibrate [inactive] Performs color matching to make sure that the document's color tones are scanned correctly. --clean [inactive] Cleans the scanners reading section. Type ``scanimage --help -d DEVICE'' to get list of all options for DEVICE. List of available devices: epkowa:interpreter:003:021 utsushi:esci:usb:/sys/devices/pci0000:00/0000:00:1a.7/usb9/9-5/9-5:1.0 utsushi:esci:networkscan://192.168.0.2:1865 utsushi:sane::epkowa:usb:0x04b8:0x0848 --- Trying simple `scanimage` with default depth works fine: --- $ scanimage --verbose -d 'epkowa:interpreter:003:021' --format=tiff --source 'Transparency Unit' > test.tiff scanimage: scanning image of size 808x3052 pixels at 24 bits/pixel scanimage: acquiring RGB frame scanimage: min/max graylevel value = 0/254 scanimage: read 7398048 bytes in total --- But setting the depth to 16bpc results in a crash?: --- $ scanimage --verbose -d 'epkowa:interpreter:003:021' --format=tiff --source 'Transparency Unit' --depth 16 > test.tiff scanimage: scanning image of size 808x3052 pixels at 48 bits/pixel scanimage: acquiring RGB frame $ hexdump test.tiff 0000000 4949 002a 0008 0000 0010 00fe 0004 0001 0000010 0000 0000 0000 0100 0003 0001 0000 0328 0000020 0000 0101 0003 0001 0000 0bec 0000 0102 0000030 0003 0003 0000 00ce 0000 0103 0003 0001 0000040 0000 0001 0000 0106 0003 0001 0000 0002 0000050 0000 0111 0004 0001 0000 00f0 0000 0112 0000060 0003 0001 0000 0001 0000 0115 0003 0001 0000070 0000 0003 0000 0116 0004 0001 0000 0bec 0000080 0000 0117 0004 0001 0000 c540 00e1 0118 0000090 0003 0003 0000 00d4 0000 0119 0003 0003 00000a0 0000 00da 0000 011a 0005 0001 0000 00e0 00000b0 0000 011b 0005 0001 0000 00e8 0000 0128 00000c0 0003 0001 0000 0002 0000 0000 0000 0010 00000d0 0010 0010 0000 0000 0000 ffff ffff ffff 00000e0 0190 0000 0001 0000 0190 0000 0001 0000 00000f0 --- scanimage does not seem to segfault, but the output image is garbage and the scanner seems to be stuck and needs restart. I've tried xsane and skanlite, but since they all (presumably) work with sane, it didn't help. How do you make 16bpc transparency (analog film negative) scan work? --- $ scanimage -V scanimage (sane-backends) 1.0.27; backend version 1.0.27 $ uname -roms Linux 4.20.6-arch1-1-ARCH x86_64 GNU/Linux --- -- sane-devel mailing list: [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
