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aaphoto - Auto Adjust Photo, automatic color correction of photos…  more info»


Auto Adjust Photo
Copyright (C) 2006-2010 Andras Horvath
E-mail: - suggestions & feedbacks are welcome
URL: - the official site
aaphoto (command-line) version - v0.38
aaRGB (color-correction engine) version - v0.61
last update = 18/07/2010

The following libraries are used by this program:
libjpeg - IJG JPEG software,
libjasper - JasPer software,
libpng - PNG software,
libz - Compression library,

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 

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 <>.

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.

USAGE: aaphoto [options] [source files]

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

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           JPEG 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 above
    -V   --verbose       Print verbose information about processing
         --test          Print detailed test information into image

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

- auto adjust parameter is set by default if no other parameters are given
- _new file name will be generated without --overwrite parameter
- on directory input every file will be processed in it but not recursively
- order of parameters does not matter
- resizing 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

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