A console program to manipulate photos.
Stable version From PyPI using pipx:
pipx install fotolab
Stable version From PyPI using pip:
python -m pip install fotolab
Upgrade to latest stable version:
python3 -m pip install fotolab --upgrade
Latest development version from GitHub:
python -m pip install -e git+https://github.com/kianmeng/fotolab.git
fotolab -h
usage: fotolab [-h] [-o] [-op] [-od OUTPUT_DIR] [-q] [-v] [-d] [-V]
{animate,auto,border,contrast,env,halftone,info,montage,resize,rotate,sharpen,watermark} ...
A console program to manipulate photos.
website: https://github.com/kianmeng/fotolab
changelog: https://github.com/kianmeng/fotolab/blob/master/CHANGELOG.md
issues: https://github.com/kianmeng/fotolab/issues
positional arguments:
{animate,auto,border,contrast,env,halftone,info,montage,resize,rotate,sharpen,watermark}
sub-command help
animate animate an image
auto auto adjust (resize, contrast, and watermark) a photo
border add border to image
contrast contrast an image
env print environment information for bug reporting
halftone halftone an image
info info an image
montage montage a list of image
resize resize an image
rotate rotate an image
sharpen sharpen an image
watermark watermark an image
options:
-h, --help show this help message and exit
-o, --overwrite overwrite existing image
-op, --open open the image using default program (default: 'False')
-od, --output-dir OUTPUT_DIR
set default output folder (default: 'output')
-q, --quiet suppress all logging
-v, --verbose show verbosity of debugging log, use -vv, -vvv for more details
-d, --debug show debugging log and stacktrace
-V, --version show program's version number and exit
fotolab animate -h
usage: fotolab animate [-h] [-f FORMAT] [-d DURATION] [-l LOOP]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
-f, --format FORMAT set the image format (default: 'gif')
-d, --duration DURATION
set the duration in milliseconds (default: '2500')
-l, --loop LOOP set the loop cycle (default: '0')
fotolab auto -h
usage: fotolab auto [-h] IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filename
options:
-h, --help show this help message and exit
fotolab border -h
usage: fotolab border [-h] [-c COLOR] [-w WIDTH] [-wt WIDTH] [-wr WIDTH]
[-wb WIDTH] [-wl WIDTH]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
-c, --color COLOR set the color of border (default: 'black')
-w, --width WIDTH set the width of border (default: '10')
-wt, --width-top WIDTH
set the width of top border (default: '0')
-wr, --width-right WIDTH
set the width of right border (default: '0')
-wb, --width-bottom WIDTH
set the width of bottom border (default: '0')
-wl, --width-left WIDTH
set the width of left border (default: '0')
fotolab contrast -h
usage: fotolab contrast [-h] [-c CUTOFF] IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filename
options:
-h, --help show this help message and exit
-c, --cutoff CUTOFF set the percentage of lightest or darkest pixels to
discard from histogram (default: '1')
fotolab info -h
usage: fotolab info [-h] [-s] [--camera] [--datetime] IMAGE_FILENAME
positional arguments:
IMAGE_FILENAME set the image filename
options:
-h, --help show this help message and exit
-s, --sort show image info by sorted field name
--camera show the camera maker details
--datetime show the datetime
fotolab rotate -h
usage: fotolab rotate [-h] [-r ROTATION] [-cw]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
-r, --rotation ROTATION
Rotation angle in degrees (default: '0')
-cw, --clockwise Rotate clockwise (default: 'False)
fotolab montage -h
usage: fotolab montage [-h] IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
fotolab resize -h
usage: fotolab resize [-h] [-c] [-l CANVAS_COLOR] [-W WIDTH | -H HEIGHT]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filename
options:
-h, --help show this help message and exit
-c, --canvas paste image onto a larger canvas
-l, --canvas-color CANVAS_COLOR
the color of the extended larger canvas(default:
'black')
-W, --width WIDTH set the width of the image (default: '600')
-H, --height HEIGHT set the height of the image (default: '277')
fotolab sharpen -h
usage: fotolab sharpen [-h] [-r RADIUS] [-p PERCENT] [-t THRESHOLD] [-ba]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
-r, --radius RADIUS set the radius or size of edges (default: '1')
-p, --percent PERCENT
set the amount of overall strength of sharpening
effect (default: '100')
-t, --threshold THRESHOLD
set the minimum brightness changed to be sharpened
(default: '3')
-ba, --before-after generate a GIF showing before and after changes
fotolab watermark -h
usage: fotolab watermark [-h] [-t WATERMARK_TEXT]
[-p {top-left,top-right,bottom-left,bottom-right}]
[-pd PADDING] [-fs FONT_SIZE] [-fc FONT_COLOR]
[-ow OUTLINE_WIDTH] [-oc OUTLINE_COLOR] [--camera]
[-l | --lowercase | --no-lowercase]
IMAGE_FILENAMES [IMAGE_FILENAMES ...]
positional arguments:
IMAGE_FILENAMES set the image filenames
options:
-h, --help show this help message and exit
-t, --text WATERMARK_TEXT
set the watermark text (default: 'kianmeng.org')
-p, --position {top-left,top-right,bottom-left,bottom-right}
set position of the watermark text (default: 'bottom-
left')
-pd, --padding PADDING
set the padding of the watermark text relative to the
image (default: '15')
-fs, --font-size FONT_SIZE
set the font size of watermark text (default: '12')
-fc, --font-color FONT_COLOR
set the font color of watermark text (default:
'white')
-ow, --outline-width OUTLINE_WIDTH
set the outline width of the watermark text (default:
'2')
-oc, --outline-color OUTLINE_COLOR
set the outline color of the watermark text (default:
'black')
--camera use camera metadata as watermark
-l, --lowercase, --no-lowercase
lowercase the watermark text
fotolab env -h
usage: fotolab env [-h]
options:
-h, --help show this help message and exit
Copyright (C) 2024,2025 Kian-Meng Ang
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.
The fish logo used in the documentation generated by Sphinx is a public domain drawing of male freshwater phase [Sockeye (red) salmon (Oncorhynchus nerka)] (https://en.wikipedia.org/w/index.php?oldid=1186575702) from https://commons.wikimedia.org/entity/M2787002.
FAQs
A console program that manipulate images.
We found that fotolab demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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