1. A method of inspecting a component, said method comprising: receiving an ultrasound image of the component; extracting a waveform from the image; determining a half-max point of a front surface echo in the waveform; taking a derivative of the waveform; locating a front surface of the component at a first zero crossing in the derivative waveform after the half max point; combining a filtered subimage with the selected subimage; and outputting the combined image to at least one of a display and an analyzer.