node.js - Resize and crop image and keeping aspect ratio NodeJS & gm -

i've been trying create thumbnails using gm package nodejs, i'm out of lucky. need resize images bigger 600x600 (could width/height, starting given one) when pass size gm, creates image doesn't have same size requested.

for example, given code, assume running node app /path/to/image.png i'll receive image size of 200x100, instead got, say, image of 180x100 or 200x90...

gm(filelocation)     .thumb(200, 100, 'processed.' + process.argv[2].split('.').pop(), function() {         console.log("done!");     }); 

i've tried resize option. there's option force size, aspect ratio of output goes horrible...

gm('/path/to/image.jpg')     .resize(353, 257)     .write(writestream, function (err) {          if (!err) console.log(' hooray! ');     }); 

try imagemagick package nodejs: https://github.com/yourdeveloper/node-imagemagick

im.crop({     srcpath: process.argv[2],     dstpath: 'cropped.' + process.argv[2].split('.').pop(),     width: 200,     height: 200,     quality: 1,     gravity: 'center' }, function(err, stdout, stderr){     if (err) throw err;     console.log('resized ' + process.argv[2].split('/').pop() + ' fit within 200x200px'); }); 

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update: please note node-imagemagick package hasn't been updated in quite long time. please consider freyday's answer since it's up-to-date.