According to one embodiment, an image processing apparatus includes a first scaler, a second scaler, a generator, a coefficient assigner, and a blender. The first scaler converts the number of pixels of an image signal to scale up it according to control information set based on characteristic information. The second scaler converts the number of pixels of the image signal scaled up by the first scaler to further scale up it. The generator estimates an original pixel value from the image signal to increase the pixels, and generates an image signal with a resolution higher than that of the image signal scaled up by the first scaler. The coefficient assigner assigns a coefficient to the image signal generated by the generator according to the characteristic information or the control information. The blender blends the image signal generated by the generator with the image signal scaled up by the second scaler.