[sane-devel] Epson Perfection V37/v200 support SANE.
m. allan noah
kitno455 at gmail.com
Mon Sep 10 19:18:29 BST 2018
I think the authors of the code you are patching are not on this
mailing list, as they are not members of the sane project.
allan
On Mon, Sep 10, 2018 at 1:41 PM Robert A. Schmied <uwppp at flash.net> wrote:
>
> aloha camil
>
> hopefully posting to the sane development list will suffice,
> but there might also be a sane bugs url as well. if so, it
> should be listed http://www.sane-project.org/ under reporting bugs.
>
> that is about the best we users can really do; bring issues
> to the attention of the active development team and hope they
> take action ...
>
> regards
>
> ras
>
>
> Camil Băncioiu wrote:
> > Does anyone know to whom should I send the modified function which enables
> > 16-bit scanning in Linux? It would be great if the official Epson driver
> > will integrate it.
> >
> > On Wed, Sep 5, 2018 at 4:35 PM Camil Băncioiu <ioan.camil.bancioiu at gmail.com>
> > wrote:
> >
> >
> >>I didn't know to whom should I give my modified "dip_apply_color_profile",
> >>but I'm glad I caught someone's attention. Could this be integrated in the
> >>official driver?
> >>
> >>On Wed, Sep 5, 2018 at 4:28 PM Camil Băncioiu <
> >>ioan.camil.bancioiu at gmail.com> wrote:
> >>
> >>
> >>>Sure, here's the modified "dip_apply_color_profile":
> >>>
> >>>void
> >>>dip_apply_color_profile (const void *self, const buffer *buf,
> >>> const double profile[9])
> >>>{
> >>> SANE_Int i;
> >>> SANE_Byte *r_buf, *g_buf, *b_buf;
> >>> double red, grn, blu;
> >>>
> >>> SANE_Byte *data;
> >>> SANE_Int size;
> >>>
> >>> require (dip == self && buf && profile);
> >>>
> >>> log_info("Using %d bits per channel.", buf->ctx.depth);
> >>> if (SANE_FRAME_RGB != buf->ctx.format)
> >>> return;
> >>>
> >>> log_info("Buffer size: %d", size);
> >>>
> >>> if (16 == buf->ctx.depth) {
> >>> uint16_t *p = (uint16_t *) buf->ptr;
> >>> uint16_t *e = (uint16_t *) buf->end;
> >>>
> >>> uint16_t red_16, grn_16, blu_16;
> >>>
> >>> while (p < e)
> >>> {
> >>> red_16 = p[0];
> >>> grn_16 = p[1];
> >>> blu_16 = p[2];
> >>> red =
> >>> profile[0] * (red_16) + profile[1] * (grn_16) + profile[2] *
> >>>(blu_16);
> >>> grn =
> >>> profile[3] * (red_16) + profile[4] * (grn_16) + profile[5] *
> >>>(blu_16);
> >>> blu =
> >>> profile[6] * (red_16) + profile[7] * (grn_16) + profile[8] *
> >>>(blu_16);
> >>>
> >>> p[0] = clamp(red, 0, 0xFFFF);
> >>> p[1] = clamp(grn, 0, 0xFFFF);
> >>> p[2] = clamp(blu, 0, 0xFFFF);
> >>> p += 3;
> >>> }
> >>> }
> >>>
> >>> if (8 == buf->ctx.depth) {
> >>>
> >>> data = buf->ptr;
> >>> size = buf->end - buf->ptr;
> >>>
> >>> for (i = 0; i < size / 3; i++) {
> >>> r_buf = data;
> >>> g_buf = data + 1;
> >>> b_buf = data + 2;
> >>>
> >>> red =
> >>> profile[0] * (*r_buf) + profile[1] * (*g_buf) + profile[2] *
> >>>(*b_buf);
> >>> grn =
> >>> profile[3] * (*r_buf) + profile[4] * (*g_buf) + profile[5] *
> >>>(*b_buf);
> >>> blu =
> >>> profile[6] * (*r_buf) + profile[7] * (*g_buf) + profile[8] *
> >>>(*b_buf);
> >>>
> >>> *data++ = clamp (red, 0, 255);
> >>> *data++ = clamp (grn, 0, 255);
> >>> *data++ = clamp (blu, 0, 255);
> >>> }
> >>> }
> >>>}
> >>>
> >>>Pay good attention to the compiling process, to ensure that the modified
> >>>driver properly replaces the default iscan driver. I think you had to pass
> >>>some very specific folder paths to the ./configure script (as command-line
> >>>arguments) to match with your system. This was required to make sure that
> >>>the driver finds the proper data files after compilation (the ones provided
> >>>by the iscan-data package).
> >>>
> >>>
> >>>On Tue, Sep 4, 2018 at 7:59 PM Robert A. Schmied <uwppp at flash.net> wrote:
> >>>
> >>>
> >>>>aloha camil
> >>>>
> >>>>i note your prior message dated 4 aug 18 in which you list function
> >>>>void dip_apply_color_profile of the iscan package -- is this the part
> >>>>you are referring to when you write ".. edit the driver source code .."?
> >>>>
> >>>>regardless, for us casual hackers more specifics as to what to
> >>>>edit/change would be extremely helpful and greatly appreciated.
> >>>>
> >>>>
> >>>>ras
> >>>>
> >>>>
> >>>>
> >>>>Camil Băncioiu wrote:
> >>>>
> >>>>>Unfortunately, on Linux you will not have 16-bit scanning, only 8-bit,
> >>>>
> >>>>if
> >>>>
> >>>>>that is important to you. Scanning at 16-bit can be enabled, but you
> >>>>
> >>>>need
> >>>>
> >>>>>to edit the driver source code and compile it yourself. I have done so.
> >>>>>
> >>>>>On Sun, Sep 2, 2018 at 8:06 PM Yuri Chornoivan <yurchor at ukr.net>
> >>>>
> >>>>wrote:
> >>>>
> >>>>>
> >>>>>>вівторок, 21 серпня 2018 р. 13:23:51 EEST Виктор Рыжков написано:
> >>>>>>
> >>>>>>
> >>>>>>>Hello, sane-developers!
> >>>>>>>Help me please. I am work in Vologda State Library.
> >>>>>>>We switched from Windows to ALT Linux, and we had problems with the
> >>>>
> >>>>Epson
> >>>>
> >>>>>>>Perfestion V37/V200 scanners. There are no official Epson drivers on
> >>>>
> >>>>the
> >>>>
> >>>>>>>ALT Linux.SANE does not support them. Do you have the opportunity to
> >>>>
> >>>>help
> >>>>
> >>>>>>>us in this matter?
> >>>>>>>Yours faithfully, engineer of support Viktor Ryzhkov.
> >>>>>>
> >>>>>>Hi,
> >>>>>>
> >>>>>>You can use drivers from the hardware manufacturer:
> >>>>>>
> >>>>>>http://download.ebz.epson.net/dsc/search/01/search/searchModule
> >>>>>>
> >>>>>>Just enter "V37" then download packages for your distribution (ALT is
> >>>>
> >>>>RPM-
> >>>>
> >>>>>>based, you should choose 32- or 64-bits RPM). Install those RPMs.
> >>>>>>Interface is
> >>>>>>very similar to the one for Windows.
> >>>>>>
> >>>>>>Works fine here for Epson Perfection V330 Photo (same family) on
> >>>>
> >>>>Mageia 6,
> >>>>
> >>>>>>64-
> >>>>>>bits.
> >>>>>>
> >>>>>>Hope this helps.
> >>>>>>
> >>>>>>Best regards,
> >>>>>>Yuri
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>--
> >>>>>>sane-devel mailing list: sane-devel at alioth-lists.debian.net
> >>>>>>https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/sane-devel
> >>>>>>Unsubscribe: Send mail with subject "unsubscribe your_password"
> >>>>>> to sane-devel-request at lists.alioth.debian.org
> >>>>>
> >>>>>
> >>>>>
> >>>>
> >
> >
> >
>
>
> --
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--
"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"
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