---demosaic of ISP image processing algorithm

Currently on the market mainstream sensors are coms sensors, sensor out of the data format for the Bayer data format, this format, each pixel point only three color Channel One, 1 shows

Figure 1 Bayer data format

The purpose of Demosaic is to have Bayer data to recover the full RGB data.

Methods: chromatic aberration and color ratio, general use of chromatic aberration theory

Common algorithms: bilinear, gradient-based, adaptive, and some other methods, the specific principles of the web can be checked, here do not introduce, finally paste a few of their own to do a demosaic and a comparison of common algorithms

Original

                                                           ,         &NB Sp                          ,         &NB Sp                                   bilinear interpolation Value

Based on gradient interpolation

Adaptive interpolation

Interpolation method based on difference value

Own method

---demosaic of ISP image processing algorithm