The Blur Filters
Blur, Blur MoreThe Blur and Blur More Filters obtain their distortion in the same way. They alter the pixel, the source for both visual detail and color in a bitmappe
image. When pixels (which are like little dots on a canvas) are arranged along a grid, the pixels form an image or picture that the viewer can recognize. The Blur and Blur More Filters average the color value of a pixel with its surrounding pixels to get that distinct, blurry effect. The only difference between the Blur and Blur More Filters is that the Blur More filter averages the color value of a pixel at about four times the rate of the Blur filter. The Blur and Blur More Filters can be used to soften an image without destroying the contents, and are useful for taking a sharp edge off an object.
Motion BlurThe Motion Blur Filter is very useful when you want to blur part of an image without distorting the rest or background of an image. Thus it is best used if you select an object or part of an image, copy it to a layer, and apply the filter. The Motion Blur filter is mostly confined to creating the effect of things speeding through the air or giving the appearance of movement.
The Distort Filters