Corel Draw has helped me more than any other program to vectorize color images and convert them to black and white. I have been making several coloring pictures of the brawl stars game for my children, since with this situation of the covid-19 we are a lot of time in the house all together. That is why I learned that despite using more specialized programs for design, such as photoshop or illustrator. The program that has helped me the most to convert images more easily is corel, Here you can see the results of my work.
corel draw for vector images, Corel Draw has helped me more