Luca Beltrame
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| author | categories | comments | date | slug | title | omit_header_text | disable_share | wordpress_id | |
|---|---|---|---|---|---|---|---|---|---|
| einar |
|
true | 2007-07-04T21:26:31Z | command-line-scanning | Command line scanning | true | true | 269 |
Recently, I had to do a few scans with my old but trusty BenQ 640BU. Given that I could not use any GUI due to a long-standing Feisty bug, I tried to settle for command line scanning with the scanimage command from SANE. The main problem is that scanimage only saves images in PNM or TIFF formats. I wanted to use JPEG or PNG, but apparently that looked impossible to do.
Instead, I found that scanimage sends its results to standard output, and also that ImageMagick can accept standard input as source file, it was easy to convert on the fly:
[code lang='c'] scanimage --format pnm | convert -format png - test.png [/code]
"-" tells convert to use the standard input. Another great example of the power of the command line.