What does the Invert filter do to an image's pixels?

The Invert filter is designed to transform the colors of an image by replacing each pixel's color with its inverse. This means that for each pixel, the red, green, and blue values are subtracted from the maximum value (typically 255 in digital images). For instance, if a pixel's original color is pure red, the inverse would be cyan, which is the color achieved by inverting the red component while scaling back the green and blue components.

This inversion alters the image dramatically, changing all colors to their opposites on the color spectrum. The overall effect is a striking transformation that can produce visually compelling results, making this filter particularly useful for artistic and design purposes.

The other choices relate to different effects on images, such as enhancing brightness or blurring, which do not correctly describe the function of the Invert filter. The specific action of inverting each pixel's color is unique to this filter, distinguishing it from those alternatives.