FPGA based advanced video enhancement algorithms

In this thesis work, it is aimed to design a low cost, portable and reconfigurable system to capture composite video data, decode and make image enhancement on this video data.This thesis is composed of two main parts; an analog composite video input is converted to digital VGA format and applied image enhancement algorithms on this video signal. Noise reducing, sharpening, contrast enhancement and color enhancement techniques are used for video improving.Field Programmable Gate Arrays (FPGA) are integrated circuits that can be programmable in the field by the customer after manufacturing. In this study, it is aimed to develop a system by using ALTERA DE2-70 FPGA board. Design is done using hardware design language Verilog. Analog NTSC composite video input is decoded on a video decoder module ; then in FPGA, the video signal is de-interlaced. Image enhancement algorithms are applied on this video signal and it is converted from YCbCr format to RGB format which is suitable for driving a VGA monitor.Development of image processing techniques in FPGA is the main subject of this thesis. FPGAs have many advantages that can be used in image processing areas. Therefore, the system can be improved more to use in the areas like LCD Television market by some enhancements which will be done in the future.