This package helps you to auto-detect faces in a picture and crop them out.

Install from command line:

npm install --save opencv-facecrop

const facecrop = require('opencv-facecrop');

facecrop('./image-file.jpg', './dest/output.jpg', "image/jpeg", 0.95, 50);

/* 
Outputs image with file name output.jpg in 'dest' folder with the face cropped out.

If multiple faces are detected, the files will be automatically renamed to output-1.jpg, output-2.jpg and so on.
*/

Original Image:

Cropped Image:

Image by Free-Photos from Pixabay

facecrop(input_filename, output_filename, type, quality, factor)

• input_filename: Input String containing file name with relative/absolute filepath.

• output_filename: (Optional) Requires a string value which will contains the output file name.

• type: (Optional) Requires String value which will tell the format of the output image.

• quality: (Optional) Requires a float value between 0 to 1 which stands for the quality index of the output file compares to the input file. Set 1 for no reduction in quality.

• factor: (Optional) Factor by which the area of cropping of the face should be increased to add more details. Use -ve value to decrease.

• input_filename: Mandatory parameter
• output_filename: "./output.jpg"
• type: 'image/jpeg'
• quality: 0.95
• factor: 1

To view the changelogs, please refer to the Github Releases page of this project.

OpenCv - Face Crop is published under the Unlicense. For more information, see the accompanying LICENSE file.

P.S. - This is a pre-release version. More updates with refinements coming soon.