According to one embodiment, an image processing apparatus includes a super-resolution converter, a reducing module, and a restoring module. The super-resolution converter estimates, upon receipt of a first image signal with first resolution, an original pixel value from the first image signal and increases pixels to obtain a second image signal with second resolution higher than the first resolution. The first image signal and the second image signal include a combination of a luminance signal and a color difference signal. The reducing module reduces a first quantization bit rate of the color difference signal in the first image signal to be input to the super-resolution converter to a second quantization bit rate. The restoring module restores the second quantization bit rate of the color difference signal in the second image signal to the first quantization bit rate.