Provided are an image processing apparatus, an image processing method, a program, and a camera which are capable of generating a joined image in which misalignment is less likely to occur. An image processing apparatus according to an exemplary embodiment includes a motion vector derivation unit that derives a motion vector between images of a plurality of images; a correction unit that corrects a motion vector between images included in a target section from a first image to a second image based on cumulative errors in the section from the first image to the second image; and a texture writing unit that writes, into a frame memory, the plurality of textures that form the joined image, based on the motion vector corrected by the correction unit.