Error cropping a base64 format image using jimp package in Nodejs

var base64str="data:image/jpeg;base64,***"//base64 format of the image
var buf = Buffer.from(base64str, 'base64');
  
jimp.read(buf, (err, image) => {
  if (err) throw err;
  else {
    image.crop(140, 50, 200, 280)
      .quality(100)
      .getBase64(jimp.MIME_JPEG, function(err, src) {
        console.log("rb is \n")
        console.log(src);
      })
  }
})

I am trying to use the jimp package from npm to crop the base64 format of an image but I am getting an error as follows:

Error: Could not find MIME for Buffer <null>
    at Jimp.parseBitmap (D:\Node\image-crop\node_modules\@jimp\core\dist\utils\image-bitmap.js:108:15)
    at new Jimp (D:\Node\image-crop\node_modules\@jimp\core\dist\index.js:425:32)
    at _construct (D:\Node\image-crop\node_modules\@jimp\core\dist\index.js:100:393)
    at D:\Node\image-crop\node_modules\@jimp\core\dist\index.js:932:5
    at new Promise (<anonymous>)
    at Function.Jimp.read (D:\Node\image-crop\node_modules\@jimp\core\dist\index.js:931:10)
    at Object.<anonymous> (D:\Node\image-crop\index.js:46:6)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)

Is there any way to crop an image which is in base64 format without converting it into an image in Nodejs?

The problem is from the base64 string. To make it work, just drop the prefix data:image/jpeg;base64,, and just leave the data.

Example :

const base64str = "R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="//base64 of a 1x1 black pixel
const buf = Buffer.from(base64str, 'base64');

jimp.read(buf, (err, image) => {
  if (err) throw err;
  else {
    image.crop(140, 50, 200, 280)
      .quality(100)
      .getBase64(jimp.MIME_JPEG, function (err, src) {
        console.log("rb is \n")
        console.log(src);
      })
  }
})

Output is :

rb is

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBA[...]