IMAGE PROCESSING APPARATUS HAVING A PLURALITY OF IMAGE PROCESSING BLOCKS THAT ARE CAPABLE OF REAL-TIME PROCESSING OF AN IMAGE SIGNAL

摘要

An image processing apparatus is provided which offers higher versatility than conventional image processing apparatuses. When an input signal to a spatial filtering block is a monochrome signal that contains Y component only, a selector selects its input terminal and a selector selects its input terminal. Then, a low-pass filter output signal of a programmable spatial filter is inputted to a spatial filter, and a low-pass filter output signal of the spatial filer is inputted to a spatial filter. That is, the programmable spatial filter and the spatial filters are connected in series (in cascade), and the cascade-connected three spatial filters perform filtering operation. In this example, low-pass filters with 5H5 taps are connected in cascade in three stages, which enables low-pass filtering with 13H13 taps.

主权项

1. An image processing apparatus comprising a plurality of image processing blocks that are capable of real-time processing of an image signal inputted from outside,
said plurality of image processing blocks including a spatial filtering block that applies a spatial filtering to an input signal, said spatial filtering block comprising, a first low-pass filter that performs a first low-pass filtering; and a first operator that multiplies together a center pixel signal that is an original pixel signal and a first coefficient, multiplies together a first low-pass filter output signal that is an output signal of said first low-pass filter and a second coefficient, and adds results of these multiplications together, wherein the sum of said first coefficient and said second coefficient is constant value.