table of contents
DJXL_NG(1) | User Commands | DJXL_NG(1) |
NAME¶
djxl_ng - djxl_ng
DESCRIPTION¶
Warning: This is work in progress, consider using djxl instead! djxl_ng: JPEG XL decoder
- Flags from ./tools/djxl_ng_main.cc:
-allow_more_progressive_steps (allow decoding more progressive steps in
- truncated files. No effect without --allow_partial_files) type: bool default: false
-allow_partial_files (allow decoding of truncated files) type: bool
- default: false
-bits_per_sample (0 = original (input) bit depth) type: int32 default: 0
-color_space (defaults to original (input) color space) type: string
- default: "RGB_D65_SRG_Rel_Lin"
-display_nits (luminance range of the display to which to tone-map; the
- lower bound can be omitted) type: string default: "0.f-255."
-downsampling (maximum permissible downsampling factor (values greater than
- 16 will return the LQIP if available) type: uint32 default: 0
-jpeg_quality (JPEG output quality. Setting an output quality implies
--pixels_to_jpeg.) type: uint32 default: 95
-num_reps (How many times to decompress.) type: int64 default: 1
-num_threads (Number of worker threads (0 == use machine default).)
- type: int64 default: 0
-pixels_to_jpeg (By default, if the input JPEG XL contains a recompressed
- JPEG file, djxl reconstructs the exact original JPEG file. This flag causes the decoder to instead decode the image to pixels and encode a new (lossy) JPEG. The output file if provided must be a .jpg or .jpeg file.) type: bool default: false
-preserve_saturation (with --tone_map, how much to favor saturation over
- luminance) type: double default: 0.10000000000000001
-print_read_bytes (print total number of decoded bytes) type: bool
- default: false
-quiet (silence output (except for errors)) type: bool default: false
-tone_map (tone map the image to the luminance range indicated by
--display_nits instead of performing a naive 0-1 -> 0-1 conversion)
- type: bool default: true
AUTHOR¶
This manual page was written by Mathieu Malaterre <malat@debian.org> for the Debian GNU/Linux system (but may be used by others).
April 2022 | djxl_ng 0.7.0 |