1. A method for detecting the presence of a flaw in a translucent object, wherein said method comprises: determining the brightness of a first portion of said object by imaging said first portion of said object; determining the brightness of a second portion of said object by imaging said second portion of said object; calculating a calculated ratio of said brightness of said first portion relative to said brightness of said second portion; determining whether said flaw exists based upon said calculated ratio; and wherein said imaging said first portion of said object comprises imaging said first portion of said object on a plurality of pixels and said step of determining the brightness of a first portion comprises averaging the brightness of each of said plurality of pixels.