Hi, i have big experience in the images processing, including NIR, SWIR and thermal bands. This task is interesting to me as is. To do what do you want with web camera (NIR region, about 800-900nm supposed ), it need with removing web camera IR filter add at least red filter to reject 400-700nm band. In this case you will have red - near IR band. Sorry, however Project Budjet is low to me, I add my propositions. Best regards, Sergiy.