SOLDERING INSPECTION METHOD

摘要

In the soldering checking method including an image inputting step of shedding color stacked ring light on a circuit board and inputting images based on respective colors for a soldering image of parts positioned on the circuit board, to an image grabbing board, by a camera; an image processing step of corresponding colors for the images based on each color inputted from the image inputting step to a slant face of the soldering part; a specific value extracting step of extracting a characteristic of the image processed in the image processing step; and a deciding step of deciding a quality of the soldering part on the basis of the specific value extracted from the specific value extracting step, the method further comprises the steps of converting the images having each color inputted from the image inputting step into each of pure colors concerned with each angle on the subject to image processing regulations ruled by using a reference sample when each ring light is not the pure color in the image processing step; and performing a binary operation for the converted color and area.