SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The Edge Enhancer module is used to enhance the visual quality of the image by increasing the sharpness of the image. The module only works on Y (Luma) data and uses a combination of 2D HPF (High-Pass Filter) filtering to detect edges and then apply them on the input image.
The Edge Enhancer consists of two separate blocks internally, the edge enhancer filter and the edge sharpener filter. The module can be programmed to either select the output of one of the filters or to use a blend of both.
Table 10-6 below shows a conceptual block diagram of the edge enhancer filter. The input data is assumed to be a 12 bits/pixel. The EE module is tuned to process 8-bit images (MSB aligned) but has support to process 10-bit and 12-bit images as well.