man aaphoto (1): automatic color correction of photos

SYNOPSYS

aaphoto [option[s]] [source file[s]]

DESCRIPTION

Auto Adjust Photo is a tiny command-line image manipulation tool for automatic color correction of photos. It tries to make the picture look better. The program does this by analyzing the input image and then sets the most optimal contrast, gamma, color balance and saturation for it.

The following image types are supported (thanks to JasPer, JPEG and PNG):
mif, pnm / pgm / ppm, bmp, ras, jp2, jpc, jpg, png

Quality settings can be applied only to jp2, jpc, jpg formats

OPTIONS

The following options are supported:

-h --help: Print this help
-v --version: Print version information
-a --autoadjust: Auto adjust the colors of the image
-o --output: Set output directory
--overwrite: Overwrite mode, the original source file is replaced
--jpg: JPG image output
--jp2: JPEG 2000 image output
--png: PNG image output with alpha channel support
--bmp: BMP image output
-r --resize: Resize image taking the longer side in % or pixels
--rotate90: Rotate image with 90 degrees clockwise
--rotate180: Rotate image with 180 degrees
--rotate270: Rotate image with 90 degrees counter-clockwise
--flipx: Mirror image horizontally
--flipy: Mirror image vertically
--noexif: Save image without EXIF info
-q --quality: Set image quality from 1 to 100
-t --threads: Set number of working threads (default: autodetect)
-s --silent: Silent mode, no information printed during operation
--quiet: Same as -s, --silent
-V --verbose: Print verbose information about processing
--test: Print detailed test information into image

EXAMPLES

aaphoto folders
aaphoto image.jpg
aaphoto -a -r600 -q85 *.jpg
aaphoto mydir
aaphoto -V --resize70% image.png
aaphoto --quality60 image.jp2
aaphoto image.jp2

REMARKS

- auto adjust parameter is set by default without any other parameters
- a _new filename will be generated without --overwrite parameter
- every file is processed on directory input but not recursively
- order of parameters does not matter
- resize value can be set in percentage too
- resize parameter should be less or equal than original
- resize uses the best (and slowest) resampling method
- default jpeg compression quality is 95%
- EXIF information is restored in jpeg images by default
- number of threads is set to the number of online processors by default

AUTHORS

Auto Adjust Photo
Copyright (C) 2006-2011 Andras Horvath
E-mail: [email protected] - suggestions & feedbacks are welcome
URL: http://log69.com - the official site
Man page originally made by rezso ([email protected])

The following libraries are used by this program:
libgomp - OpenMP for parallel programming, http://gcc.gnu.org/onlinedocs/libgomp/
libjasper - JasPer software, http://www.ece.uvic.ca/~mdadams/jasper/
libjpeg - IJG JPEG software, http://www.ijg.org/
libpng - PNG software, http://www.libpng.org/
libz - Compression library, http://www.zlib.net/

LICENSE

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.