Method for calibrating a projection apparatus for presenting discretely stored image information with the aid of • at least two controllable and regulable light sources (r0, r1, g, b), which each emit a beam component of a scanning beam and which each generate a corresponding pixel on a projection surface, and • with means for focusing, aligning and moving the beam components so that the corresponding pixels overlay one another if possible on the projection surface and can be moved over the projection surface in a specified trajectory, wherein each pixel generated by a light source (r0, r1, g, b) is assigned an x projector coordinate and a y projector coordinate corresponding to its position on the trajectory, wherein simultaneously generated pixels of different light sources are assigned the same x and y projector coordinates, wherein the method comprises the following steps: a. determining a reference beam for the scanning beam; b. determining in each case one spatially dependent dewarping function (f x, f y) for the x projector coordinate and for the y projector coordinate of the reference beam, wherein each spatially dependent dewarping function (f x, f y) transforms the respective projector coordinate to corresponding image coordinates that are assigned to the image information; c. determining in each case one spatially dependent displacement function (df x, df y) for the x projector coordinate and the y projector coordinate for all beam components, wherein each spatially dependent displacement function (df x, df y) approximates a displacement between the respective x or y image coordinate of the reference beam and the x or y image coordinate of the respective beam component; d. providing the spatially dependent dewarping functions for the reference beam, wherein the spatially dependent dewarping functions (f x, f y) are approximated by polynomial functions of degree n, and e. providing the spatially dependent displacement functions (df x, df y) for all beam components, wherein the spatially dependent displacement functions for the individual beam components are approximated by polynomial functions of degree m, and wherein m<n. • at least two controllable and regulable light sources (r0, r1, g, b), which each emit a beam component of a scanning beam and which each generate a corresponding pixel on a projection surface, and • with means for focusing, aligning and moving the beam components so that the corresponding pixels overlay one another if possible on the projection surface and can be moved over the projection surface in a specified trajectory, wherein each pixel generated by a light source (r0, r1, g, b) is assigned an x projector coordinate and a y projector coordinate corresponding to its position on the trajectory, wherein simultaneously generated pixels of different light sources are assigned the same x and y projector coordinates, wherein the method comprises the following steps: a. determining a reference beam for the scanning beam; b. determining in each case one spatially dependent dewarping function (f x, f y) for the x projector coordinate and for the y projector coordinate of the reference beam, wherein each spatially dependent dewarping function (f x, f y) transforms the respective projector coordinate to corresponding image coordinates that are assigned to the image information; c. determining in each case one spatially dependent displacement function (df x, df y) for the x projector coordinate and the y projector coordinate for all beam components, wherein each spatially dependent displacement function (df x, df y) approximates a displacement between the respective x or y image coordinate of the reference beam and the x or y image coordinate of the respective beam component; d. providing the spatially dependent dewarping functions for the reference beam, wherein the spatially dependent dewarping functions (f x, f y) are approximated by polynomial functions of degree n, and e. providing the spatially dependent displacement functions (df x, df y) for all beam components, wherein the spatially dependent displacement functions for the individual beam components are approximated by polynomial functions of degree m, and wherein m<n. a. determining a reference beam for the scanning beam; b. determining in each case one spatially dependent dewarping function (f x, f y) for the x projector coordinate and for the y projector coordinate of the reference beam, wherein each spatially dependent dewarping function (f x, f y) transforms the respective projector coordinate to corresponding image coordinates that are assigned to the image information; c. determining in each case one spatially dependent displacement function (df x, df y) for the x projector coordinate and the y projector coordinate for all beam components, wherein each spatially dependent displacement function (df x, df y) approximates a displacement between the respective x or y image coordinate of the reference beam and the x or y image coordinate of the respective beam component; d. providing the spatially dependent dewarping functions for the reference beam, wherein the spatially dependent dewarping functions (f x, f y) are approximated by polynomial functions of degree n, and e. providing the spatially dependent displacement functions (df x, df y) for all beam components, wherein the spatially dependent displacement functions for the individual beam components are approximated by polynomial functions of degree m, and wherein m<n.