Channel Blur

Use Channel Blur to blur each channel separately. You can blur the alpha channel, or create some unusual effects by adjusting the blur filter independently for each color channel. For example, blur the Blue channel to reduce grain, green to blur image detail, and red to reduce contrast.

Red, Green, Blue, and Alpha

Sets the blur radius, in pixels, for each color channel.

Undefined Areas

Sets the color to use to blur pixels at the edge of the image, or where the color channel is black.

Resize Image

Extends the blur beyond the edge of the blurred layer.