Which effect does the Charcoal filter simulate in Artistic Filters?

The Charcoal filter in Artistic Filters is designed to replicate the texture and appearance of charcoal drawings. When applied to an image, this filter creates a distinctive look that mimics the way charcoal interacts with paper, capturing the soft gradients and rough textures characteristic of hand-drawn artwork. This effect can enhance the visual depth of an image, giving it a unique, artistic feel consistent with traditional charcoal mediums.

The other options reference different artistic styles: the watercolor texture resembles the fluidity and softness of watercolor paints; the oil painting effect aims to reproduce the rich and layered quality of oil paint on canvas; and the pencil sketch detail focuses on the lines and shading associated with pencil drawings. Each of these styles requires different techniques and textures, differentiating them from the distinct characteristics of charcoal as rendered by the filter.