Useful on some embedded systems that do not support file writing

#1237 + fix gcc

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
[ERROR] Outfile Stationery_openjpeg.png not generated

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
[ERROR] Outfile Stationery_openjpeg.ppm not generated

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
Raw image characteristics: 3 components
Component 0 characteristics: 4000x3000x8 unsigned
Component 1 characteristics: 4000x3000x8 unsigned
Component 2 characteristics: 4000x3000x8 unsigned
[INFO] Generated Outfile Stationery_openjpeg.raw
decode time: 174 ms long time of decoding 4000x3000 with gcc 10.0
The RAW file is twice the size of the original. Why can't I add or create YUV?
I don't know what these colors are?
https://imgur.com/XgUl30U

#1237 + fix gcc

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
[ERROR] Outfile Stationery_openjpeg.png not generated

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
[ERROR] Outfile Stationery_openjpeg.ppm not generated

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[INFO] Header of tile 1 / 1 has been read.
Raw image characteristics: 3 components
Component 0 characteristics: 4000x3000x8 unsigned
Component 1 characteristics: 4000x3000x8 unsigned
Component 2 characteristics: 4000x3000x8 unsigned
[INFO] Generated Outfile Stationery_openjpeg.raw
decode time: 174 ms long time of decoding 4000x3000 with gcc 10.0
The RAW file is twice the size of the original. Why can't I add or create YUV?
I don't know what these colors are?
https://imgur.com/XgUl30U

@Jamaika1 @Jamaika1

This project is relatively large, I just need to use the memory stream method for conversion, so I provide a method to convert j2k to bmp. As for the others, I have no further research.