Applying Noise effects

CorelDRAW provides eight noise effects that create, control, and eliminate noise. Noise refers to the graininess of a bitmap, when random pixels on the surface of a bitmap resemble static on a television screen. The Noise effects are:

• Add Noise — creates a granular effect that adds texture to a flat or overly blended bitmap

• Diffuse — distributes an image's pixels to fill in blank spaces and remove noise

• Dust and Scratch — reduces image noise by averaging pixel values

• Maximum — removes noise by adjusting a pixel's color value based on the maximum color values of its neighboring pixels

• Median — removes noise and detail by averaging the color values of the pixels in an image

• Minimum — removes noise by adjusting a pixel's color value based on the minimum color values of its neighboring pixels

• Remove Moiré — removes undesired wave patterns that occur when halftone screens of two different frequencies are superimposed in the same image

• Remove Noise — softens a bitmap and reduces the speckled effect caused by scanning or capturing images from video

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