Can JPEG XR be used for compressing binary images?

Question

I am trying to compress some binary images i.e. images with bit depth equal to 1. For JPEG-XR encoder I used jxrlib but it is not able to compress the image. I am using specified format bmp. Even with some of the online compressors present I am not able to compress my bmp file to jxr. I have even tried with tiff files.

So because of this I have a double, does JPEG-XR does not support compression of binary images ? If so do I need to make some changes in my compression command. I am using the following command:

JXREncApp -i Image3_3.bmp -o output.jxr -c 1

For the reader's reference I am also attaching how to instructions needed to be given: JXREncApp [options]...

  -i input.bmp/tif/hdr         Input image file name
                               bmp: <=8bpc, BGR
                               tif: >=8bpc, RGB
                               hdr: 24bppRGBE only

  -o output.jxr                Output JPEG XR file name

  -q quality                   [0.0 - 1.0) Default = 1.0, lossless
  or quantization              [1   - 255] Default = 1, lossless

  -c format                    Required to define uncompressed source pixel format
                                0: 24bppBGR
                                1: 1bppBlackWhite
                                2: 8bppGray
                                3: 16bppGray
                                4: 16bppGrayFixedPoint
                                5: 16bppGrayHalf
                                7: 32bppGrayFixedPoint
                                8: 32bppGrayFloat
                                9: 24bppRGB
                               10: 48bppRGB
                               11: 48bppRGBFixedPoint
                               12: 48bppRGBHalf
                               14: 96bppRGBFixedPoint
                               15: 128bppRGBFloat
                               16: 32bppRGBE
                               17: 32bppCMYK
                               18: 64bppCMYK
                               22: 32bppBGRA
                               23: 64bppRGBA
                               24: 64bppRGBAFixedPoint
                               25: 64bppRGBAHalf
                               27: 128bppRGBAFixedPoint
                               28: 128bppRGBAFloat
                               29: 16bppBGR555
                               30: 16bppBGR565
                               31: 32bppBGR101010
                               32: 40bppCMYKA
                               33: 80bppCMYKA
                               34: 32bppBGR

  -d chroma sub-sampling       0: Y-only
                               1: YCoCg 4:2:0
                               2: YCoCg 4:2:2
                               3: YCoCg 4:4:4 (default)
     (if not set is 4:4:4 for quality >= 0.5 or 4:2:0 for quality < 0.5)

  -l overlapping               0: No overlapping
                               1: One level overlapping (default)
                               2: Two level overlapping
     (if not set is One for quality > 0.4 or Two for quality <= 0.4)

  -f                           Turn off frequency order bit stream (to spatial)

  -p                           Turn off progressive mode (to sequential)

  -t                           Display timing information

  -v                           Display verbose encoder information

  -V tile_wd0 [tile_wd1 ... ]  Macro block columns per tile 

  -H tile_ht0 [tile_ht1 ... ]  Macro block rows per tile

  -U num_v_tiles num_h_tiles   Vertical & horizontal tile count for uniform tiling

  -b Black/White               Applies to 1bpp black/white images
                               0: 0 = black (default)
                               1: 0 = white

  -a alpha channel format      Required for any pixel format with an alpha channel
                               2: Planar alpha (default)
                               3: Interleaved alpha
                               Other: Reserved, do not use

  -Q quantization for alpha    [1 - 255] Default = 1, lossless

  -F trimmed flexbits          [0 - 15]  0: no trimming (default)
                                        15: trim all

  -s skip subbands             0: All subbands included (default)
                               1: Skip flexbits
                               2: Skip highpass
                               3: Skip highpass & lowpass (DC only)

Please do let me know what am I doing wrong here.

Answer 1

Is it encoded as a true binary format, or as bytes being either 0 or 255?

Do you want lossy or lossless compression? I would try png/gif or zip. Possibly some run-length encoder would do decently.

Answer 2

It can be used. It is not the use case it was optimized for. Just scale the values of your image. Still, there will be only 2 values, so it is a binary image.