The opacity() function is an inbuilt function in Nodejs | Jimp which multiplies the opacity of each pixel by a factor between 0 and 1.
- f: This parameter stores the value by which the image is made opaque. It has a range of 0 to 1. 1 will turn the image completely transparent.
- cb: This is an optional parameter that is invoked when compilation is complete.
npm init -y
npm install jimp
Example 1: In this example, we will see the use of opacity().