backbone: Get rgba values of top sliver of image

lundi 2 mars 2015

I'm working on a site that has two types of images.

Image Type 1 has all white space at the top.

Image Type 2 has at least one pixel of non-white space at the top.

I am wondering if there is a way to detect if the image has white space anywhere along the first full width of the image (at a height of 1px).

Image Type 1

enter image description here

Image Type 2

enter image description here

backbone