Jenny can use many apps and Software to change her graduation photo into black and white with many tools the best tool is the desaturation of images.
Saturation intensifies color vibrancy (less black or white added). Desaturation results in softer hues (more black or white added). Authentic color picture (center). Less color is present in the desaturated version (left).
For more information about Desaturation refer to the link:https://brainly.com/question/26639483
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