fangwei123456 / python-jpeg-encoder Goto Github PK

I downloaded the script and tested the example code line but the output file is not valid. I attached it.
What is the problem?

File is like this:
[255, 216, 255, 224, 0, 16, 74, 70, 73, 70, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0][255, 219, 0, 67, 0][16, 11, 10, 16, 24, 40, 51, 61, 12, 12, 14, 19, 26, 58, 60, 55, 14, 13, 16, 24, 40, 57, 69, 56, 14, 17, 22, 29, 51, 87, 80, 62, 18, 22, 37, 56, 68, 109, 103, 77, 24, 35, 55, 64, 81, 104, 113, 92, 49, 64, 78, 87, 103, 121, 120, 101, 72, 92, 95, 98, 112, 100, 103, 99][255, 219, 0, 67, 1][17, 18, 24, 47, 99, 99, 99, 99, 18, 21, 26, 66, 99, 99, 99, 99, 24, 26, 56, 99, 99, 99, 99, 99, 47, 66, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99][255, 192, 0, 17, 8][0, 16][0, 16][3, 1, 17, 0, 2, 17, 1, 3, 17, 1][255, 196, 1, 162, 0, 0, 0, 7, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 3, 2, 6, 1, 0, 7, 8, 9, 10, 11, 1, 0, 2, 2, 3, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 0, 2, 1, 3, 3, 2, 4, 2, 6, 7, 3, 4, 2, 6, 2, 115, 1, 2, 3, 17, 4, 0, 5, 33, 18, 49, 65, 81, 6, 19, 97, 34, 113, 129, 20, 50, 145, 161, 7, 21, 177, 66, 35, 193, 82, 209, 225, 51, 22, 98, 240, 36, 114, 130, 241, 37, 67, 52, 83, 146, 162, 178, 99, 115, 194, 53, 68, 39, 147, 163, 179, 54, 23, 84, 100, 116, 195, 210, 226, 8, 38, 131, 9, 10, 24, 25, 132, 148, 69, 70, 164, 180, 86, 211, 85, 40, 26, 242, 227, 243, 196, 212, 228, 244, 101, 117, 133, 149, 165, 181, 197, 213, 229, 245, 102, 118, 134, 150, 166, 182, 198, 214, 230, 246, 55, 71, 87, 103, 119, 135, 151, 167, 183, 199, 215, 231, 247, 56, 72, 88, 104, 120, 136, 152, 168, 184, 200, 216, 232, 248, 41, 57, 73, 89, 105, 121, 137, 153, 169, 185, 201, 217, 233, 249, 42, 58, 74, 90, 106, 122, 138, 154, 170, 186, 202, 218, 234, 250, 17, 0, 2, 2, 1, 2, 3, 5, 5, 4, 5, 6, 4, 8, 3, 3, 109, 1, 0, 2, 17, 3, 4, 33, 18, 49, 65, 5, 81, 19, 97, 34, 6, 113, 129, 145, 50, 161, 177, 240, 20, 193, 209, 225, 35, 66, 21, 82, 98, 114, 241, 51, 36, 52, 67, 130, 22, 146, 83, 37, 162, 99, 178, 194, 7, 115, 210, 53, 226, 68, 131, 23, 84, 147, 8, 9, 10, 24, 25, 38, 54, 69, 26, 39, 100, 116, 85, 55, 242, 163, 179, 195, 40, 41, 211, 227, 243, 132, 148, 164, 180, 196, 212, 228, 244, 101, 117, 133, 149, 165, 181, 197, 213, 229, 245, 70, 86, 102, 118, 134, 150, 166, 182, 198, 214, 230, 246, 71, 87, 103, 119, 135, 151, 167, 183, 199, 215, 231, 247, 56, 72, 88, 104, 120, 136, 152, 168, 184, 200, 216, 232, 248, 57, 73, 89, 105, 121, 137, 153, 169, 185, 201, 217, 233, 249, 42, 58, 74, 90, 106, 122, 138, 154, 170, 186, 202, 218, 234, 250][255, 218, 0, 12, 3, 1, 0, 2, 17, 3, 17, 0, 63, 0]["'"]['2']['\xc8']['\xcd']['#']['\x19']['\x1c']['\x99']['>']['\xd9']["'"]['\xed']['o'][']']['\xfc']['w']['\x15']['\xcc'][';']['z']['\xee']['\x11']['\xb0']['\xae']['M']['#']['\xb4']['n']['\xae']['\x8c']['U']['\x94']['\xd4']['0']['4'][' ']['\xf8']['\xe0']['R']['\x01']['\x14']['W']['\xab']['\xcd'][',']['\xac']['\x15']['\xa4']['y']['&']['4']['']['\t']['%']['\xc9']['5']['\xa1']['\xf1']['\xde']['\x9f']['N']['\x1d']['\xd0']['D']['b']['<']['\x87']['\xd8']['\xb1']['\x11']['\xa4']['u']['D']['R']['\xcc']['\xc6']['\x81']['@']['\xa9']["'"]['\xc3']['\x02']['I']['\x00']['Y']['\x7f'][255, 217]`

Hi!
Thanks for your great work.

I am wondering what happens if input image is jpg instead of bmp.
I could check with my eyes that this code still makes fine output.
But the weird thing was a file size.
Why does the file size increase with high quality level such as 95~100?
For example, when tested with 114kB jpg image and quality level 100, result was 295kB.
Is this because some of components in jpeg compression pipeline are missing in your work?

Regards,
Kim

Hi,

Thanks for the JPEG implementation. I am wondering is this implementation the same as the PIL library or some standard library?

Regards,
Jinyang