Brightness, discriminability and the “Crispening Effect” Evaluation of the crispening effect using CRT‐displayed colour samples Grey scale, the “crispening effect”, and perceptual linearization Method and apparatus for crispening video signals by the use of temporal filters PDE Based Unsharp Masking, Crispening and High Boost Filtering of Digital Images PDE Based Unsharp Masking, Crispening and High Boost Filtering of Digital Images PDE Based Unsharp Masking, Crispening and High Boost Filtering of Digital Images Picture crispening by adaptive digital signal processing Crispening effect on lightness differences Method of edge crispening in color image sensor and circuit for carrying out the same
