How to increase the quality of Images at category pages in magento

As default Magento has very low quality of images at catalog page. All thumbnails look very poor.

Here is how we can improve/change the quality of images. It is very simple and you can make lower or higher.

*(this only works after magento verion 1.4

1. Open

 app/design/frontend/yourpackage/yourtheme/template/catalog/product/list.phtml

2. Search for the following line (you can find by control+F)

<img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(122,180) ?>" alt="" />

3. Add this  ->setQuality(100);  after the “resize(122,180)”

so it should be like this

<img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(122,180)->setQuality(100); ?>" alt="" />

now the quality is set as 100. this is the max so it will give you a very beautiful image. if you want to decease, simply change 100 to 30 etc whatever number you want it to be.

Hope it helps!