A Go library to crop images.
Cutter was initially developped to be able to crop image resized using github.com/nfnt/resize.
Read the doc on https://godoc.org/github.com/oliamb/cutter
Import package with
import "github.com/oliamb/cutter"
Package cutter provides a function to crop image.
By default, the original image will be cropped at the given size from the top left corner.
croppedImg, err := cutter.Crop(img, cutter.Config{
Width: 250,
Height: 500,
})
It is possible to specify the top left position:
croppedImg, err := cutter.Crop(img, cutter.Config{
Width: 250,
Height: 500,
Anchor: image.Point{100, 100},
Mode: TopLeft, // optional, default value
})
The Anchor property can represents the center of the cropped image instead of the top left corner:
croppedImg, err := cutter.Crop(img, cutter.Config{
Width: 250,
Height: 500,
Mode: Centered,
})
The default crop use the specified dimension, but it is possible to use Width and Heigth as a ratio instead. In this case, the resulting image will be as big as possible to fit the asked ratio from the anchor position.
croppedImg, err := cutter.Crop(baseImage, cutter.Config{
Width: 4,
Height: 3,
Mode: Centered,
Options: Ratio,
})
This lib only manage crop and won't resize image, but it works great in combination with github.com/nfnt/resize
I'd love to see your contributions to Cutter. If you'd like to hack on it:
- fork the project,
- hack on it,
- ensure tests pass,
- make a pull request
If you plan to modify the API, let's disscuss it first.
MIT License, Please see the file called LICENSE.
Test Picture: Gopher picture from Heidi Schuyt, https://www.flickr.com/photos/hschuyt/7674222278/, © copyright Creative Commons(https://creativecommons.org/licenses/by-nc-sa/2.0/)
Thanks to Urturn for the time allocated to develop the library.