mage resize with crop functionality for ideal proportions fit with every design. Instead of resizing of adding white frame this module will crop main part of image.

Attention! For now it will work only with GD2 image library.

To use adaptive resize just use standart product image helper as always, just change resize() method to adaptiveResize(). Example

$this->helper('catalog/image')->init($this->getProduct(), 'image')->adaptiveResize(400, 215)
$this->helper('catalog/image')->init($this->getProduct(), 'image', $_image->getFile())->constrainOnly(TRUE)->keepAspectRatio(FALSE)->keepFrame(FALSE)->adaptiveResize(400, 300)
//height is the same is width
$this->helper('catalog/image')->init($this->getProduct())->constrainOnly(TRUE)->adaptiveResize(400)