An image processing apparatus includes a pre-processor configured to generate information relating to image positions based on Bayer image signals obtained by cameras. The image processing apparatus further includes an independent image signal processor (IISP) configured to perform a first image signal processing operation for generating first image data of an RGB format from a first one of the Bayer image signals obtained by a first one of the cameras. The IISP is further configured to generate image processing information calculated during the first image signal processing operation. The image processing apparatus further includes a dependent image signal processor configured to perform a second image signal processing operation for generating second image data of the RGB format from a second one of the Bayer image signals obtained by a second one of the cameras using the image processing information and the information relating to the image positions.