1. An apparatus, comprising: a media processor including an image signal processor having multiple processing elements to: determine a level of noise for an image using an internal spatial region of said image by scanning blocks of said internal spatial region, determining a pixel noise metric value for each pixel within a block, determining a block noise metric value for each block using said pixel noise metric values, and determining a cumulative distribution function value for said blocks using said block noise metric values, select filter parameters based on said level of noise, and filter said image using said filter parameters.