elie/cbconvert
1
0
Fork 0
mirror of https://github.com/gen2brain/cbconvert synced 2025-10-14 10:38:51 +02:00
Code Issues Packages Projects Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
Milan Nikolic
2023-09-02 12:11:24 +02:00
parent aa65bfa4f4
commit fa162972b2
1 changed files with 18 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
README.md
View File

@@ -168,20 +168,34 @@ This is what it looks like in the PCManFM file manager:
### Examples ### Examples
Rescale images to 1200px for all supported files found in a directory with a size larger than 60MB: * Rescale images to 1200px for all supported files found in a directory with a size larger than 60MB:
`cbconvert --recursive --width 1200 --size 60 /media/comics/Thorgal/` `cbconvert --recursive --width 1200 --size 60 /media/comics/Thorgal/`
Convert all images in pdf to 4bit BMP images and save the result in ~/comics directory: * Convert all images in pdf to 4bit BMP images and save the result in ~/comics directory:
`cbconvert --bmp --outdir ~/comics /media/comics/Garfield/Garfield_01.pdf` `cbconvert --format bmp --outdir ~/comics /media/comics/Garfield/Garfield_01.pdf`
[BMP](http://en.wikipedia.org/wiki/BMP_file_format) format is a very good choice for black&white pages. Archive size can be smaller 2-3x and the file will be readable by comic readers. [BMP](http://en.wikipedia.org/wiki/BMP_file_format) format is a very good choice for black&white pages. Archive size can be smaller 2-3x and the file will be readable by comic readers.
Extract covers to ~/covers dir for all supported files found in the directory, Lanczos algorithm is used for resizing: * Extract covers to ~/covers dir for all supported files found in the directory, Lanczos algorithm is used for resizing:
`cbconvert cover --outdir ~/covers --filter=7 /media/comics/GrooTheWanderer/` `cbconvert cover --outdir ~/covers --filter=7 /media/comics/GrooTheWanderer/`
* Convert all images to AVIF format:
`cbconvert --format avif --quality 50 --width 1280 --outdir ~/comics /media/comics/Misc/`
### Quality settings
This table maps quality settings for JPEG to the respective AVIF and WEBP quality settings:
| | | | | |
|--------------|----|----|----|----|
| JPEG quality | 50 | 60 | 70 | 80 |
| AVIF quality | 48 | 51 | 56 | 64 |
| WEBP quality | 55 | 64 | 72 | 82 |
### Compile ### Compile
Install ImageMagick7 and libheif (with libaom) libraries and headers and then install to GOBIN: Install ImageMagick7 and libheif (with libaom) libraries and headers and then install to GOBIN: