... The algorithm, known as Variable-Pixel Linear Reconstruction (or informally as ``drizzling"), preserves photometry and resolution, can weight input images according to the statistical significance of each pixel, and removes the effects of geometric distortion both on image shape and photometry. ... Drizzling'' maps pixels in the original input images onto the pixel grid of a subsampled output image, taking into account shifts and rotations between images and the optical distortion of the camera. ...