1. A method implemented with a printing system for selectively generating one or more print effects on one or more portions of an image on a substrate, the method comprising: receiving instructions, wherein the instructions identify one or more portions of the image less than the entire image that are selected by a user, and a degree of glossiness for the selected one or more portions that are specified by the user, wherein the degree of glossiness specified by the user corresponds to any level of gloss between no gloss and full gloss; dispensing inkjet ink onto the substrate to print the image on the substrate, based on the received instructions, using a print head carriage including a plurality of print heads, each print head including at least one nozzle for the dispensing of the inkjet ink; and with a lamp module associated with the print head carriage, wherein the lamp module includes a plurality of individually controllable ultraviolet (UV) light-emitting diodes (LEDs), curing the printed image on the substrate, and selectively exposing the selected one or more portions of the image to different light intensities to achieve the degree of glossiness specified by the user for the selected one or more portions, based on the received instructions.