Ignatius van Regemorter was the son of Petrus Johannes van Regemorter. He studied at the Academie in Antwerp under his father and Balthasar-Paul Ommeganck and in 1805 attended life-drawing classes. He exhibited two landscapes at the Salon the same year. Like his father, he became a restorer and, later, a professor at the Academie.
Until 1867 he continued to exhibit landscapes, as well as portraits, townscapes, interiors and scenes from the lives of Flemish and Dutch painters. He is generally considered to have had a lighter and more vigorous touch than his father, with particular skill in punctuating dark and sober tonalities with spots of light.