As I discuss in [this post](https://magick.codeplex.com/discussions/660276) and these ImageMagick forum posts (the ["Users" forum](https://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=31094); as well as the ["Magick.NET" forum](https://www.imagemagick.org/discourse-server/viewtopic.php?f=27&t=31095)), I am unable to successfully create 8-bit grayscale JPEG-2000 images in Magick.NET.
I __am__ able to successfully create 8-bit grayscale images via the command line in ImageMagick, so I believe the problem is not a deeper issue with ImageMagick. Rather, Magick.NET does not respect commands to change the Color.
With certain commands (see my discussion linked above in the Magick.NET forum), the JPEG-2000 metadata changes, but the file size does not change appreciably, suggesting that the actual imagery data being written is not changing. With other commands, neither the metadata nor the file size change.
Comments: You will need to upgrade Magick.NET to get that new feature. I added the Jp2WriteDefines because of this issue that you created. If you want to stay with the old version you should use `rate` instead of `Rate` in the define. The defines are case sensitive.
I __am__ able to successfully create 8-bit grayscale images via the command line in ImageMagick, so I believe the problem is not a deeper issue with ImageMagick. Rather, Magick.NET does not respect commands to change the Color.
With certain commands (see my discussion linked above in the Magick.NET forum), the JPEG-2000 metadata changes, but the file size does not change appreciably, suggesting that the actual imagery data being written is not changing. With other commands, neither the metadata nor the file size change.
Comments: You will need to upgrade Magick.NET to get that new feature. I added the Jp2WriteDefines because of this issue that you created. If you want to stay with the old version you should use `rate` instead of `Rate` in the define. The defines are case sensitive.