The Implementation of ISP IP Based on FPGA

This paper propose the ISP IP that is compatible with various types of CMOS image sensor.It provides a sensor compensation function capable of compensating for black level and lens shading phenomenon.The proprietary color interpolation algorithm implemented in this IP can reconstruct RGB components of every pixel from Bayer raw data.With consecutive size-up and size-down capability,user can resize the source image to the resolution needed.Moreover,luminance compensation,sharpness,false color suppression and color saturation control can help to make the image more pleasing to the human eyes.Image statistics can be further read for exposure and white balance control.The processor interface is compliant with AMBA AHB 2.0,which can serve as an IP core for integration into AMBA system.Finally,we use FPGA to implement and verify the ISP IP.