KASHIWA jpg creating on LINUX

● (No.1157) KASHIWA jpg creating on LINUX (2024年5月19日)
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update

[KASHIWA jpg creating on LINUX #1]

  

KASHIWAのカメラ画像データを元に、JH4XSY/1局の記事を参考に画像化してみた。
かなり無理矢理で、完成画像は大分ずれているが、一応絵にはなったので達成感
はある。SatNOGSからデータをダウンロードし、CAS-5A_jpg化記事を参考にした。

Based on the KASHIWA camera image data, I converted it into a jpg image
with reference to the article by JH4XSY/1. It was quite forced, so the
finished image is a little off, but it turned out to be a painting, so
I feel a sense of accomplishment. I downloaded the data from SatNOGS
and referred to my article on converting it to CAS-5A_jpg.
http://www.asahi-net.or.jp/~ei7m-wkt/numb1129.htm
https://tool.muzin.org/16/


|<-------20------->|                    Frame_No.
2024-05-17 07:30:51|                    vvvv
4A4736594257304A4736594D58303EF0FFF0FF800000FFD8FFE000104A4649..........
||JA1GDE-PM95ws                       ^^    ^^^^
                                Image_No.   JPEG_header

[ext080.rb]
> for i in 0..0x070
> printf("grep 3EF0FFF0FF80%04X 2024-05-17_07.csv | head -1 | cut -c 65-186 >> 2024-05-17_07_cut.hex\n", i)
> end

[Terminal]
$ cd ~/kashiwa/
$ grep '^2024-05-17 07' 40518ksw.csv > 2024-05-17_07.csv
> modify to total 112 lines and save as 2024-05-17_07.csv
> [0112] decimal = [0070] hexadecimal
> save above [ext080.rb]
$ ruby ext080.rb
$ ruby ext080.rb > 40518ksw.sh
$ sh 40518ksw.sh
$ cat 2024-05-17_07_cut.hex > 40518ksw.hex
$ tr -d '\n' < 40518ksw.hex > 40518ksw-oneline.hex
$ cat 40518ksw-oneline.hex | xxd -r -p > 40518ksw-completion.jpg


[KASHIWA jpg creating on LINUX #2]

    

    

    


[KASHIWA jpg creating on LINUX #3]

ずれの無い画像、ついに完成！ Tnx.JH4XSY/1

  

[ext080new.rb]
> for i in 0..0x492
> printf("grep 3EF0FFF0FF80%04X 2024-05-19.csv | head -1 | cut -c 65-186 >> 2024-05-19_cut.hex\n", i)
> end

[Terminal]
$ grep '^2024-05-12 10' 40518ksw.csv >> 2024-05-19.csv
$ grep '^2024-05-14 08' 40518ksw.csv >> 2024-05-19.csv
$ grep '^2024-05-17 07' 40518ksw.csv >> 2024-05-19.csv
> [1170] decimal = [0492] hexadecimal
> save above [ext080new.rb]
$ ruby ext080new.rb
$ ruby ext080new.rb > 40519ksw.sh
$ sh 40519ksw.sh
$ cat 2024-05-19_cut.hex > 40519ksw.hex
$ tr -d '\n' < 40519ksw.hex > 40519ksw-oneline.hex
$ cat 40519ksw-oneline.hex | xxd -r -p > 40519ksw-completion.jpg

  


[KASHIWA jpg creating on LINUX #4]

#90 2024-05-27版

  

[ext090ne2.rb]
> for i in 0..0x596
> printf("grep 3EF0FFF0FF90%04X 2024-05-27.csv | head -1 | cut -c 65-186 >> 2024-05-27_90cut.hex\n", i)
> end

[Terminal]
$ grep '^2024-05-27 04' 40527ksw.csv > 2024-05-27.csv
> [1430] decimal = [0596] hexadecimal
> save above [ext090ne2.rb]
$ ruby ext090ne2.rb
$ ruby ext090ne2.rb > 40527_90ksw.sh
$ sh 40527_90ksw.sh
$ cat 2024-05-27_90cut.hex > 40527_90ksw.hex
$ tr -d '\n' < 40527_90ksw.hex > 40527_90ksw-oneline.hex
$ cat 40527_90ksw-oneline.hex | xxd -r -p > 40527_90ksw-completion.jpg

  


[KASHIWA jpg hint]

  
  (C)JH4XSY/1


[KASHIWA jpg test]

KASHIWA からの JPEG信号を DwForwarder にて直接受信したデータファイルから
画像化することを試みた。1byte＝2文字ごとに半角スペースが付いているので、
それを剥がすから実験を始め、最後はJPEGのフッター認識を表す FFD9 を含む行
を、他所から無理矢理一行追加して画像化を試みてみたが、残念ながらJPEG画像
にはならず、となった。直接受信データがもう少し完全に近いものであれば下記
の手順で画像化できるはずである。(今回、データ欠落部が多いため、for i in
の部分、大きめの 0x064 にした｡)

[test.txt]
$ cat 20240520T151556.hex
$ tr -d ' ' < 20240520T151556.hex > 20240520T151556_spacecut.hex
$ cat 20240520T151556_spacecut.hex

[ext080test.rb]
> for i in 0..0x064
> printf("grep 3EF0FFF0FF80%04X 20240520T151556_tailcut.hex | head -1 | cut -c 41-166 >> 20240520T151556_headercut.hex\n", i)
> end

[Terminal]
$ cat 20240520T151556_spacecut.hex | cut -c 1-166 > 20240520T151556_tailcut.hex
> [0100] decimal = [0064] hexadecimal
> save above [ext080test.rb]
$ ruby ext080test.rb
$ ruby ext080test.rb > 40603test.sh
$ sh 40603test.sh
$ cat 20240520T151556_headercut.hex | cut -c 5-166 > 40603ksw.hex
> Add a last line in 40603ksw.hex, 4B56136247FFD900000000000000000000..........
$ tr -d '\n' < 40603ksw.hex > 40603ksw-oneline.hex
$ cat 40603ksw-oneline.hex | xxd -r -p > 40603ksw-completion.jpg

    

    

 
[KASHIWA jpg #88 update]



[ext088.rb]
> for i in 0..0x297
> printf("grep 3EF0FFF0FF88%04X 2024-06-02.csv | head -1 | cut -c 65-186 >> 2024-06-02_88cut.hex\n", i)
> end

[Terminal]
$ grep '^2024-06-02 01' 40606ksw.csv > 2024-06-02.csv
> [0663] decimal = [0297] hexadecimal
> save above [ext088.rb]
$ ruby ext088.rb
$ ruby ext088.rb > 40602_88ksw.sh
$ sh 40602_88ksw.sh
$ cat 2024-06-02_88cut.hex > 40602_88ksw.hex
$ tr -d '\n' < 40602_88ksw.hex > 40602_88ksw-oneline.hex
$ cat 40602_88ksw-oneline.hex | xxd -r -p > 40602_88ksw-completion.jpg




[KASHIWA jpg Bluish_Earth]

    

[ext01B.rb]
> for i in 0..0x11a
> printf("grep 3EF0FFF0FF1B%04X 2024-06-19_02.csv | head -1 | cut -c 65-186 >> 2024-06-19_02cut.hex\n", i)
> end

[Terminal]
$ grep '^2024-06-19 02' 40619ksw.csv > 2024-06-19_02.csv
> [0282] decimal = [011a] hexadecimal
> save above [ext01B.rb]
$ ruby ext01B.rb
$ ruby ext01B.rb > 40619ksw.sh
$ sh 40619ksw.sh
$ cat 2024-06-19_02cut.hex > 40619ksw.hex
$ tr -d '\n' < 40619ksw.hex > 40619ksw-oneline.hex
$ cat 40619ksw-oneline.hex | xxd -r -p > 40619ksw-completion.jpg

https://twitter.com/CitGardens
https://jh4xsy.asablo.jp/blog/2024/06/19/9694383
https://www.asahi-net.or.jp/~ei7m-wkt/numb1157.htm
https://www.ne.jp/asahi/hamradio/je9pel/kasiwjpg.htm
https://todo.vc/anotherdecade/2024/20240616_kashiwa_image.php