kopia lustrzana https://gitlab.com/sane-project/backends
71 wiersze
2.4 KiB
Plaintext
71 wiersze
2.4 KiB
Plaintext
Fri Dec 5 18:10:52 PST 1997
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Geoffrey T. Dairiki <dairiki@alumni.caltech.edu>
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Here is a new HP backend. It's name is, appropriately, ``newhp''.
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It is still in the pre-alpha stages but mostly works on my ScanJet 5P.
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It is completely untested on other scanners, but might hopefully work
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on ScanJet models IIp, IIc, IIcx, 3p, 3c, 4c, 4p, and 5p.
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I've only really tested this with xscanimage.
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Some features included in this backend which aren't in the old
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HP driver are:
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Support for custom tonemaps (gamma-maps). For some reason I
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can't get the 10-bit tonemaps working with my 5p, so for you
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only get a single tonemap (it still works in color mode, but
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you don't get individual control over each R/G/B channel.)
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You can enable the scanjets "Auto Threshold" mode when scanning
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line-art. I can't notice that it does much though....
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Added an option to control the scan speed.
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Added an option to select the dither pattern used in half-tone mode.
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I don't think that custom dither patterns are working correctly,
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and in any case, with the current front-ends, there is no convenient
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way to set a custom dither pattern....
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Added an option to select the color correction matrixes.
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This also seems to be flaky. Again the current front-ends do not provide
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a decent way to adjust the custom color matrix.
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Tue Feb 24 20:00:00 UT+1 1998
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Peter Kirchgessner <pkirchg@aol.com>
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Picked up the sources because they did not find their way to the
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SANE-package up to now. And because I want to have a better support
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for the HP Photosmart Photoscanner. Renamed the backend from newhp
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to xhp just to get a better acceptance.
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Added an option to perform calibration. Upload and download calibration data
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Added options for horizontal/vertical mirroring. Vertical mirroring
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is performed by loading image completely into memory before
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sending to frontend.
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Uses SCSI-flushing more often because otherwise the scanner did not
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accept all of the commands.
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Test support of commands to be independent from inquired
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model number.
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Wed Mar 28 10:00:00 UT+1 1998
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Bring it on its way to the SANE-project. Geoffrey accepted to add
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licence information to the files as long as no one has to pay for the code.
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Sun Jun 07 15:00:00 UT+1 1998
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Added unload button
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Fixed problem with custom gamma table
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Sat Nov 14 14:00:00 UT+1 1998
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Show calibrate button on Photosmart only for print media
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Add HP 6200 C
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Suppress halftone mode on photosmart (it is not supported)
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