two options- 1. does the scanner have multi-stream support? if so, it might be scanning in duplex with all 4 heads at the same time.
2. i have a backend for the i1860 in development. it sets weird values in the bit depth field- depending on if it is in compression mode or not. allan 2008/8/28 Jose Guadalupe Osuna Chavez <jose.chaves at sat.gob.mx>: > Hi: > > > > I'm making a backend for a i260 kodak scanner on Linux, but now I'm > stuck trying to decode the image's stream. > > > > As a result of analyzing the driver's log on window, all appears to show > that the scanner only works with depth of 48 bits per pixel. Every time that > I'd send a SetWindow command with another pixel depth, an error occurs. > > > > The SetWindow command on window's log is the next: > > > > 01904 104543281 kdsprot 7703 183 S5 CMD : SetWindow > > 01905 104543281 kdsprot 7711 183 S5 DMP : > aWindowDescLength: 0 > > 01906 104543281 kdsprot 7712 183 S5 DMP : > aWindowDataLength: 46 > > 01907 104543281 kdsprot 7713 183 S5 DMP : > aWindowId: 3 > > 01908 104543281 kdsprot 7714 183 S5 DMP : > aX_resolution: 200 > > 01909 104543281 kdsprot 7715 183 S5 DMP : > aY_resolution: 200 > > 01910 104543281 kdsprot 7716 183 S5 DMP : > aUpperLeft_X: 0 > > 01911 104543281 kdsprot 7717 183 S5 DMP : > aUpperLeft_Y: 0 > > 01912 104543281 kdsprot 7718 183 S5 DMP : > aWidth: 14400 > > 01913 104543281 kdsprot 7719 183 S5 DMP : > aLength: 20400 > > 01914 104543281 kdsprot 7720 183 S5 DMP : > aBrightness: 0 > > 01915 104543281 kdsprot 7721 183 S5 DMP : > aThreshold: 0 > > 01916 104543281 kdsprot 7722 183 S5 DMP : > aContrast: 0 > > 01917 104543281 kdsprot 7723 183 S5 DMP : > aImageComposition: 5 > > 01918 104543281 kdsprot 7724 183 S5 DMP : > aBitsPerPixel: 48 > > 01919 104543281 kdsprot 7725 183 S5 DMP : > aHalftonePattern: 0 > > 01920 104543281 kdsprot 7726 183 S5 DMP : > aPaddingType: 0 > > 01921 104543281 kdsprot 7727 183 S5 DMP : > aRif: 0 > > 01922 104543281 kdsprot 7728 183 S5 DMP : > aBitOrdering: 1 > > 01923 104543281 kdsprot 7729 183 S5 DMP : > aCompressionType: 0 > > 01924 104543281 kdsprot 7730 183 S5 DMP : > aCompressionArgument: 0 > > 01925 104543281 kdsprot 7731 183 S5 DMP : > aImageOverscan: 0 > > 01926 104543281 kdsprot 7732 183 S5 DMP : > aColorDropoutColor: 0 > > 01927 104543281 kdsprot 7733 183 S5 DMP : > aColorDropoutBackground: 245 > > 01928 104543281 kdsprot 7734 183 S5 DMP : > aColorDropoutThreshold: 175 > > 01929 104543281 kdsprot 7735 183 S5 DMP : > aImageMagnificationFactor: 10 > > 01930 104543281 kdsprot 1108 183 S5 >>> > KDSPROT::Escape(0x2a24,10891898,54,0) > > 01931 104543281 wr_cwirebase 2307 183 S5 ARG : command/2a 24 > buffer/0x10891898 buflen/54 direction/0x0 mode:1 > > 01932 104543281 wr_cwirebase 2314 183 S5 SRB : flags/0x00 > cdblen/10 > > > > 01933 104543281 wr_cwirebase 2374 183 S5 CDB : 24 00 00 00 00 > 00 00 00 36 00 > > > > 01934 104543281 wr_cwirebase 2437 183 S5 PUT : > > 00 00 00 00 00 00 00 2e 03 00 00 c8 00 c8 00 00 > > 00 00 00 00 00 00 00 00 38 40 00 00 4f b0 00 00 > > 00 05 30 00 00 00 00 01 00 00 00 00 00 00 00 00 > > 00 00 00 f5 af 0a > > > > > > The scanner works fine, but after the ReadImage command I don't > understand the data stream of 48 bits. I'll like to convert this image to 8 > bits grayscale and Bitonal after. > > > > Does anybody have any information about this image stream? Thank you > > > > The stream show two bytes with 80 80 every four, just like this on > linux. > > > > [kodak] sane_read: start > > [kodak] read_from_scanner: start > > [kodak] read_from_scanner: to:7920000 rx:0 re:7920000 bu:32766 pa:32766 > > [kodak] do_cmd: start > > [kodak] cmd: writing 10 bytes > > [kodak] cmd: >> > > [kodak] 000: 28 00 00 00 00 00 00 7f fe 00 /* ReadImage > command */ > > [kodak] in: reading 32766 bytes > > [kodak] in: << > > [kodak] 000: 09 09 80 80 0b 0a 80 80 07 07 80 80 08 09 80 80 /* Image > stream */ > > [kodak] 010: 09 09 80 80 0a 0b 80 80 0a 09 80 80 09 09 80 80 > > [kodak] 020: 0b 0a 80 80 08 09 80 80 0b 0c 80 80 0a 09 80 80 > > [kodak] 030: 0b 0a 80 80 09 0a 80 80 0b 0b 80 80 0b 09 80 80 > > [kodak] 040: 08 07 80 80 08 0a 80 80 0c 0b 80 80 09 08 80 80 > > [kodak] 050: 08 07 80 80 0a 0b 80 80 0b 0b 80 80 09 09 80 80 > > [kodak] 060: 0b 0a 80 80 09 08 80 80 09 09 80 80 0a 0b 80 80 > > ?? > > > > Jose Osuna > > Coordinaci?n T?cnica > > CRDC Cd. Obregon > > Vangent de Mexico, S.A. de C.V. > > > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org > -- "The truth is an offense, but not a sin"
