The output is followed:
[53752.1auuuzl uul uatehdag:
 [53754.142uu31 uul uatehda -
 lss7au.13uuual uul uatehda
 [63732.142EE7] uul uatehda

 : salt lucknp 7 cluua staek lar 22$! [lt7test:1salsl
 - salt lucknp 7 cluus staek lar 22$! lssdh7serue - 535]
 salt lucknp 7 cluua staek lar 22$! [lt7test:1salsl
 salt lucknp 7 cluus staek lar 22$! lssdh7seruer:zsssl
 lssaua.13uuuzl uul natehdag. . salt lucknp 7 cluua staek lar 22$! 
[lt7test:1salsl
 lssazu.142uu7l uul natehdag: : salt lucknp 7 cluus staek lar 23$! 
lssdh7seruer:zsssl
 [63332.222223] lulu: rea 7sehed sell7 deteeted stall an clulssaaz.225u111 
lul rea7sehed deteeted stalls an CPUs/tasks
 [63336.13EEEZI uul natehdag: . salt lucknp 7 cluua staek lar 22$! [lt7test 
13315]
 lssasu.142uull uul uatehda salt lucknp 7 cluus staek lar 23$! lssdh7serue 
. 535]
 [63364.13E223] uul uatehda salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 lssaaa.142uzll uul uatehda salt lucknp 7 cluus staek lar 22$! lssdh7serue 
535]
 [63332.13EEEEI uul uatehda salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 [63316.142222] uul natehdag: : salt lucknp 7 cluus staek lar 22$! 
lssdh7seruer:zsssl
 [6332E.13EEESI uul natehdag: : salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 [63344.142227] uul uatehda - - salt lucknp 7 cluus staek lar 22$! 
lssdh7serue - 535]
 [63343.13EEEZI uul uatehda salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 [53372.142uu41 uul uatehda salt lucknp 7 cluus staek lar 22$! 
lssdh7seruer:zsssl
 [63376.13EEE4] uul natehdag. . salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 l7uuuu.142uual uul natehdag: : salt lucknp 7 cluus staek lar 22$! 
lssdh7seruer:zsssl
 [7EBB4.13EEE4] uul natehdag: : salt lucknp 7 cluua staek lar 22$! [lt7test 
13315]
 l7uu12.zzauual lulu: rea 7sehed sell7 deteeted stall an clul7uu12.zauu12] 
lul rea7sehed deteeted stalls an CPUs/tasks
 [7EB32.13EEE4] uul uatehda . salt lucknp 7 cluua staek lar 22$! 
[lt7test.1salsl
 [7EB4E.14ZEE4] uul uatehda salt lucknp 7 cluus staek lar 22$! 
lssdh7seruer:zsssl
 [7EB6E.13EEE4] uul uatehda salt lucknp 7 cluua staek lar 22$! 
[lt7test:1salsl
 l7uusa.142uual uul natehdag: uu salt lucknp 7 cluus staek lar 23$! 
lssdh7seruer:zsssl
 l7uuau.zasuaul lulu: task dnsetaa:1la7s hlaeked lar nare than 12a seeands.
 l7uuau.2427uul Tainted: G L 4. 1. u7 2. 216. aelaad. xus 754 u1
 [7EBBE.25E363] "eeha u > /pruE/sgs/kernel/huug7 task 7tineaat 7sees" 
disables this message
 l7uuaa.13uuuzl uul natehdag: . salt lucknp 7 cluua staek lar 22$! llt7 
test: 13315]
 [7EB36.142211] uul uatehda salt lucknp 7 cluus staek lar 23$! lssdh7 
7seruer: 2535]
 [72116.13E223] uul natehdag. . salt lucknp 7 cluua staek lar 22$! 
[lt7test:1salsl
 l7u124.142uu41 uul natehdag: : salt lucknp 7 CPUuS staek lar 23$! 
lssdh7seruer:zsssl
 l7u144.13uuu51 uul natehdag: : salt lucknp 7 cluua staek lar 22$! 
[lt7test:1salsl
 l7u152.142uu41 uul uatehda salt lucknp 7 cluus staek lar 23$! 
lssdh7seruer:zsssl
 l7u172.13uuu51 uul natehdag. . salt lucknp 7 cluua staek lar 22$! 
[lt7test:1salsl
 l7ulau.142uual uul natehdag: uue: salt lucknp 7 cluus staek lar 23$! 
lssdh7seruer:zsssl
 l7u132.zaauual lulu: rea7sehed sell7deteeted stall an clul7u132.zasulzl 
lul rea7sehed deteeted stalls an CPUs/tasks
 l7uzuu.13uuual uul natehdag: uue: salt lucknp 7 cluua staek lar 22$! 
[lt7test 13315]
 [7EZBE.Z§EE43] lulu: task dnsetaa:1la7s hlaeked lar nare than 12a seeands.
 l7uzuu.zs77zul Tainted: G L 4. 1. u7 2. 216. aelaad. xus 754 u1
 l7uzuu.z754311"eeha u > /pruE/sgs/kernel/huug7 task 7tineaat 7sees" 
disables this message
 l7uzzu.142uual uul natehdag: . salt lucknp 7 CPUuS staek lar 22$! lssdh7 
7seruer: 2535]
 l7uzza.13uuual uul uatehda salt lucknp 7 cluua staek lar 23$! llt7 test: 
13315]
 l7uzla.142uuzl uul natehdag. . salt lucknp 7 CPUuS staek lar 22$! 
lssdh7serue . 535]
 [72256.13EEESI uul natehdag: : salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl
 l7uz7s.142uual uul natehdag: : salt lucknp 7 cluus staek lar 22$! 
lssdh7seruer:zsssl
 l7uzal.13uuzal uul natehdag: : salt lucknp 7 cluua staek lar 23$! 
[lt7test:1salsl

在 2016年11月2日星期三 UTC+8下午3:20:08,James Liu写道:
>
> Hey all,
>
> I'm in a task to OCR screenshot of terminal output. They are error logs 
> from standard ubuntu or centos systems. It's kind of easy compared with 
> images from real world camera. My result was so poor. I tried everything 
> found on google but nothing helps. Hope someone here could give me some 
> advise. Anything is welcome. 
>
> My eng.traineddata was downloaded here 
> https://github.com/tesseract-ocr/tessdata . The image was preprocessed by 
> binarization and changing DPI 600*600. 
>
> The command I run was :
> tesseract -l eng test1_dpi_b.tiff out -psm 4
>
> I also tested this image on a tesseract web service https://www.newocr.com. 
> Their results are much better than mine. 
>

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