A script for adding border to image with custom options
（中文请看这里）
Recently I started writting blog posts on my website haozhexu.me, and sometimes need to include photos with EXIF information. I like the idea of having white border around photos, just like Polaroid and Fujifilm instant photos, so I made this script to make it simple.
The script currently can add borders, and write EXIF text below the photo; As well as resizing and reducing quality of photo.
The script uses ImageMagic® mainly, ExifTool is also needed if you want to remove EXIF from the photo itself, both of them can be install via Homebrew:
brew install imagemagic
brew install exiftool
bor.sh is a command line shell script that has a few options, with a mandatory input image file, and optional output file name, if no output file specified, it uses input_bor as the new file name with the same extension as the input file.
Examples of using bor.sh:
resize by pixels
./bor.sh -r 800x600 photo.jpg
resize by percentage
./bor.sh -r 80% photo.jpg
resize by total pixels
resize photo.jpg to no more than 4096 pixels in total (roughly 64x64)
./bor.sh -r 4096@ photo.jpg
reduce image quality
reduce quality of photo.jpg to 80%
./bor.sh -q 80 photo.jpg
add border with pixel size
add 20x20 pixels border around photo.jpg
./bor.sh -b 20x20 photo.jpg
add border with percentage size
add border around photo.jpg, the border is 5% of image width and 10% of image height
./bor.sh -b 5%x10% photo.jpg
add EXIF on border
add specified EXIF information at bottom right of image border, medium font size
./bor.sh -b 5%x10% -e cameramodel,focallength,fnumber,exptime,isospeed,stripexif -f medium photo.jpg
Possible font sizes:
- small: font size that is 20% of border size
- medium: font size that is 30% of border size
- large: font size that is 50% of border size
Possible EXIF data (separated by comma when specified for -e):
- cameramodel
- focallength
- fnumber
- exptime
- isospeed
- stripexif - this is not an EXIF data, when this is specified, EXIF will be removed in the generated photo
Example with all options specified
./bor.sh -b 5%x10% -e cameramodel,focallength,fnumber,exptime,isospeed,stripexif -f medium -r 80% -q 70 photo.jpg photo_output.jpg
./run_for_all.sh '~/Photos/*.jpg' '_bor'
Generate new photos for each jpg photo in ~/Photos with border and EXIF added, each generated file will have the same filename as original one and _bor suffix.
photo001.jpg
photo002.jpg
…
photo009.jpg
Generates
photo001_bor.jpg
photo002_bor.jpg
…
photo009_bor.jpg
I'll keep improving this script, please let me know how you think.