To avoid this problem filters have unique adaptation capabilities controlled with Threshold parameter. To demonstrate the effect that can be achieved using these features we prepare the comparisons with Adobe PhotoShop for every filter. The Median filter removes noise and detail by averaging the colors of adjacent pixels in the image. Threshold automatically defines the image areas to which the filter will be applied. The Smooth filter tones down differences in adjacent pixels, resulting in only a slight loss of detail while smoothing the overall image or selected area.
Amount defines the intensity of the smoothing effect.
Threshold automatically defines the image areas to which the filter will be applied. To easy understand how it is works, set the Amount to 100 and play with different Threshold values. Threshold range is 0-100. Sharpen filte r - The Sharpen filter accentuates the edges in the image by finding the edges and increasing the contrast between adjacent pixels. Amount defines the sharpness level.