center-png

README

center-png

A command line tool to center png images based on their transparancy.

What problem does it solve?

Imagine you are making an ecommerce that sells mugs.

You take photos of your mugs, you then cut-out your photos with somethign like PhotoShop.

You now have a bunch of photos of mugs with a transparent background, but if you display those images in a grid, they won't be perfectly centered because you weren't super precise when taking the photos or when exporting the images from PhotoShop.

By using this CLI you can center all those images very easily.

Installation

Run go install github.com/cmar0027/center-png, or

• Clone the repo
• Run go install

Usage

center-png [OPTIONS] FILE [FILEs...] .

Center images by cropping out transparent pixels.

OPTIONS:
  -f    Force overwrite of existing files
  -o string
        Output folder. If not specified, the output files will be written to 
                        a \"centered\" folder in the current working directory. (default "./centered")
  -p string
        Padding to add to all 4 sides of the image. 
                        Either an amount of pixels or a percentage relative to the output image
  -pb string
        Padding to add to the bottom sides of the image.
                        Either an amount of pixels or a percentage relative to the output image
  -pl string
        Padding to add to the left sides of the image.
                        Either an amount of pixels or a percentage relative to the output image
  -pr string
        Padding to add to the right sides of the image.
                        Either an amount of pixels or a percentage relative to the output image
  -pt string
        Padding to add to the top sides of the image.
                        Either an amount of pixels or a percentage relative to the output image
  -px string
        Padding to add to the left and right sides of the image. 
                        Either an amount of pixels or a percentage relative to the output image
  -py string
        Padding to add to the top and bottom sides of the image.
                        Either an amount of pixels or a percentage relative to the output image
  -s    Stop at the first error encountered. If not specified, the program will
                        continue processing the rest of the files.
  -t int
        Tolerance for detecting transparent pixels. 
                        0-255, 0 being exact and 255 being anything

TODO

• Implementing parallel processing
• Adding support for resizing images
• Creating release binaries