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 Gray 8 bits 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.
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