Abstract: The method comprises a first determining step 104, a measuring step 110, a second determining step 112, and a re-ordering step 114. In the first determining step 104, the method determines a line between adjacent center points of the original images. In the measuring step 110, the method measures, for each line, the shortest distance from the insertion point of the new image inserted on the page to said line. In the second determining step 112, the method determines the minimum of the shortest distances. Finally, in the re-ordering step 114, the method re-orders the one-dimensional list by inserting the new image in the list of original images at that position in the list corresponding to the line having the minimum shortest distance.

Abstract: A method of increasing the speed of image creation on a computer system for the interactive creation of images via a series of creation steps. A resultant image of each of the creation steps is copied to a corresponding separate storage buffer. When making an amendment to the series of creation steps previously performed, one or more of the resultant images is used, so as to reduce the rendering time of producing a final output image.